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Green synthesis and optimization of iron oxide nanoparticles using central composite design as MRI contrast agent Green Mater. (IF 1.9) Pub Date : 2024-04-07 Yuwvaranni S, Amritta B, Weslen Vedakumari S, Chamundeeswari M
Iron nanoparticles (FeNPs) derived from herbal plants are being explored as potential MRI contrast agents due to their biocompatibility and ability for targeted drug delivery. We for the first time have attempted the usage of various novel combinations of leaf extracts like Azadirachta indica, and Piper betel and with two other Ayurvedic herbs extracts such as Asparagus racemosus and Symplocos for
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Phenol and formaldehyde alternatives for novel synthetic phenolic resins: state of the art Green Mater. (IF 1.9) Pub Date : 2024-04-01 Benoit Briou
Since their appearance and commercialization, phenolic resins have been widely used and adopted in many sectors of activity. Produced from phenol and formaldehyde, these thermosetting materials are now being singled out because of the dangerousness of their precursors as well as the fossil raw material from which they are produced. To address and deal with the current general issue on the reduction
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Preparation and properties of UV curable rosin-based polyurethane coatings Green Mater. (IF 1.9) Pub Date : 2024-03-27 Jiongchao Li, Hongming Liu, Caili Yu, Jianben Xu, Faai Zhang
Ultraviolet (UV)-curable coatings were prepared using rosin-based polyurethane as an oligomer with different active diluents and crosslinking monomers. The effects of different components level on the properties of the polyurethane coatings were investigated, and the effects of the mass ratio of the active diluents, crosslinking monomers, adhesion promoting monomers, photoinitiators, and curing times
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Utilization of waste cooking oil as a substitute for plasticizers in the production of carrageenan/cornstarch bioplastic Green Mater. (IF 1.9) Pub Date : 2024-02-23 Dharrma Mangala, Eka Saputra, Bakti Berlyanto Sedayu, Dwi Yuli Pujiastuti, Firda Aulya Syamani, Toni Dwi Novianto, Amin Pamungkas, Hari Eko Irianto
In the current investigation, to develop a carrageenan/cornstarch bioplastic production technique suitable for commercial-scale production, an alternative method to the commonly used solvent-casting technique was implemented through a hot-melt extrusion process. Moreover, to enhance the water resistance of the bioplastic and reduce production costs, waste cooking oil (WCO) was used as a substitute
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Experimental study on performance of new composite phase-change material for clean heating Green Mater. (IF 1.9) Pub Date : 2024-01-29 Qunli Zhang, Tao Liu, Baozhong Wang, Xuanrui Cheng, Wenjing Zhang, Xiaohu Yang
To achieve green and clean energy heating and improve the performance of phase-change material energy-storage heating systems, a novel magnesium chloride hexahydrate (MgCl2·6H2O)/expanded graphite (EG)/calcium hydroxide (Ca(OH)2) composite phase-change material (CPCM) was developed. The thermal properties and phase-separation characteristics of the CPCM were experimentally investigated. The results
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Structure–property relationship in edible pectin–alginate/orange peel biocomposite films Green Mater. (IF 1.9) Pub Date : 2024-01-29 Merve Mocan, Sinan Barış Uncu
Biodegradable plastics can help tackle plastic packaging waste, which has serious consequences on the environment. However, current bio-based materials often lack strength, have poor thermal and barrier properties and are expensive. This study proposes a solution: biodegradable, edible pectin–alginate films reinforced with abundant and inexpensive orange peel powder (OPP). This study stands out for
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Effect of mPCMs on the properties of whisker-reinforced PG-based composites Green Mater. (IF 1.9) Pub Date : 2024-01-12 Jingdong Wang, Peng Liu, Dewen Kong, Yuan Li, Yaxin Yang, Yongfa Wang, Mingsheng Chen, Shuangying Yang
Phase-change energy-storage building materials prepared by applying phase-change materials (PCMs) to building materials have the advantages of both common building materials and PCMs. The composites can help regulate the indoor temperature, while the introduction of phase-change microcapsule (mPCM) technology can make up for the shortcomings of traditional PCMs. Therefore, in this study, two different
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Edible coating from VCO, iota-carrageenan and alginate blends for pindang fish preservation Green Mater. (IF 1.9) Pub Date : 2024-01-05 Hana Iswahyuni, Nugraha Edhi Suyatma, Nur Wulandari, Hari Eko Irianto, Fera Roswita Dewi, Nurhayati, Ellya Sinurat, Rodiah Nurbayasari, Giyatmi, Dina Fransiska
This study aims to develop an edible coating based on virgin coconut oil (VCO) nanoemulsion, iota-carrageenan and alginate to prolong the shelf life of pindang (mildly salted cooked) fish products. The research involved three stages: material preparation, characterization and determination of factors and responses for experimental design; parameter optimization to achieve optimal conditions; and application
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ZIF-8-decorated wood sponge derived from biomimetic mineralization of polydopamine Green Mater. (IF 1.9) Pub Date : 2023-11-29 Fei Sun, Mengjia Zhang, Haixin Zhu, Yuewen Huang, Bin Song, Peijiang Wang, Shanshan Jiang, Bin Wang
Zeolitic imidazolate framework-8 (ZIF-8) is extensively researched and used because of its exclusive structural and excellent physicochemical properties; however, significant challenges of alleviating the adverse effects of its particle form in many aspects are still faced by the scientific community. In this study, in situ growth of ZIF-8 within the pore channels and surfaces of green cellulose-based
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Micellar systems of the o/w type with essential oils of andiroba and lemongrass with applications for the elimination of bacterial activity Green Mater. (IF 1.9) Pub Date : 2023-10-31 Rita Kássia da Silva, Christiane Siqueira de Azevedo Sá, Ivan Alves de Souza, José Heriberto Oliveira do Nascimento, Cátia Guaraciara F T Rossi, Michelle Cequeira Feitor, Késia K O S Silva
In this study, a promising microemulsion delivery system containing andiroba essential oil, lemongrass essential oil and chitosan was developed and applied in 100% cotton fabrics to provide antibacterial functionality. The developed micellar systems were characterized by coloration, electrical conductivity, viscosity, zeta potential, particle size, temperature resistance and microbial activity analyses
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Effects of NANH as a nucleation agent on the performance of PLLA Green Mater. (IF 1.9) Pub Date : 2023-10-25 Hao Huang, Yanhua Cai, Lisha Zhao
In this research, N,N′-bis(nicotinic) 1,4-naphthalenedicarboxylic acid dihydrazide (NANH) as a new synthetic organic nucleating agent was employed to overcome the slow crystallization rate of poly(L-lactide) (PLLA). Melt crystallization showed that the crystallization ability of PLLA was significantly enhanced by NANH, with NANH still being able to accelerate PLLA crystallization at a cooling rate
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Biobased latex adhesives from isobornyl methacrylate and plant-oil-based acrylic monomers Green Mater. (IF 1.9) Pub Date : 2023-09-13 Bohdan Domnich, Oleg Shevhcuk, Vasylyna Kirianchuk, Andriy Voronov
A range of cross-linkable latex copolymers with biobased content of up to 90% was synthesized from isobornyl methacrylate combined with acrylic monomers based on high-oleic soybean oil (HO-SBM) or camelina oil (CMM) through miniemulsion polymerization. By varying the HO-SBM and CMM macromolecular fractions, the cross-linking density of the resulting materials can be altered due to differences in the
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Optimization of water removal from oil by eggplant stems using response surface methodology Green Mater. (IF 1.9) Pub Date : 2023-09-06 Zehra Ordu, Pinar Belibagli, Mutlu Yalvac, Hudaverdi Arslan, Nadir Dizge
Eggplant stems are among the most produced organic wastes. Unfortunately, the burning and irregular storage of eggplant stems outdoors causes both global air pollution and environmental pollution. Environmental impacts can be minimized by recycling eggplant stems, turning them into valuable products and using them as valuable additives. In this study, the water-binding capacity (WBC) and water-binding
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Adhesion performance of highly biobased latex copolymers from isobornyl methacrylate and plant oil-based acrylic monomers Green Mater. (IF 1.9) Pub Date : 2023-08-24 Bohdan Domnich, Oleg Shevhcuk, Vasylyna Kirianchuk, Andriy Voronov
A range of cross-linkable latex copolymers with up to 90% biobased content was synthesized from isobornyl methacrylate combined with acrylic monomers based on high-oleic soybean (HO-SBM) or camelina (CMM) oil in miniemulsion polymerization. By varying HO-SBM and CMM macromolecular fraction, the cross-link density of resulted materials can be altered due to differences in the fatty acid profile of plant
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Eco-friendly lightweight composite prepared with a geopolymer and wheat straw Green Mater. (IF 1.9) Pub Date : 2023-08-15 Jiwei Cai, Zixian Liu, Ningwei Lv, Gelong Xu, Qing Tian, Weiguo Shen, Hao Wu
Agricultural waste shows promise for use in lightweight building materials. The combination of a geopolymer and wheat straw (WS) is adopted to produce a kind of eco-friendly lightweight composite. Using WS pretreated with sodium hydroxide (NaOH) and sodium metasilicate (Na2SiO3) solutions, the influence of WS on the properties of the geopolymer–WS composite (GWSC) is investigated. The pretreated WS
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CNSL oxyacetic derivatives, new bio-based binders for paint preparation Green Mater. (IF 1.9) Pub Date : 2023-08-08 Miarintsoa Michaële Ranarijaona, Sandratriniaina Hermann Rafanoela, Lydia Clarisse Herinirina, Marie Christine Duclos, Alban Léon Lavaud, Catherine Goux-Henry, Estelle Métay, Voahangy Ramanandraibe Vestalys, Marc Lemaire
The global coating industry produces tens of millions of metric tonnes of paints each year, and this quantity continues to grow. Most of these paints are obtained totally or partially from fossil resources, and many of them still use volatile organic compounds (VOCs) and/or other harmful chemicals. This paper describes the use of the cashew nutshell liquid (CNSL) as a raw material for synthesis of
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Pore structure and cushioning properties of wastepaper-pulp-reinforced starch-based foams Green Mater. (IF 1.9) Pub Date : 2023-08-02 Jinbao Zheng, Chen Li, Shan Gao
Foamed plastics do not readily degrade, but degradable starch foam has uneven pores and poor mechanical properties. To improve the cushioning performance of starch foams, a sustainable starch-based packaging cushioning material is prepared through microwave foaming using waste corrugated paper fibers as the reinforcement material. The effects of different fiber contents on the structure and cushioning
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Eco-friendly lightweight composite prepared with geopolymer and wheat straw Green Mater. (IF 1.9) Pub Date : 2023-07-31 Jiwei Cai, Zixian Liu, Ningwei Lv, Gelong Xu, Qing Tian, Weiguo Shen, Hao Wu
Agricultural waste is promising to be used for lightweight building materials. The combination of geopolymer and wheat straw (WS) is adopted to produce a kind of eco-friendly lightweight composite. Using the pretreated WS by NaOH and Na2SiO3 solutions, the influence of WS on the properties of geopolymer-wheat straw composite (GWSC) is investigated. The pretreated WS avoids the retarding effect of the
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Flame-retardant and anti-corrosion behaviour of cardanol-based polybenzoxazine composites Green Mater. (IF 1.9) Pub Date : 2023-07-26 Narmatha Muthukumar, Hariharan Arumugam, Balaji Krishnasamy, Athianna Muthusamy, Alagar Muthukaruppan
A new monomer of bi-functional benzoxazine was synthesised using cardanol (C) and p-phenylenediamine (ppda) under suitable experimental conditions. The curing behaviour of the cardanol-based 1,4-bis(7-pentadecyl-2H-benzo[1,3]oxazin-3(4H)-yl)benzene (C-ppda) benzoxazine monomer was studied by differential scanning calorimetry analysis, and the polymerisation temperature (T p) of C-ppda benzoxazine was
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Flame-retardant performance of phosphorylated furan-containing alkyd resins Green Mater. (IF 1.9) Pub Date : 2023-07-06 Maxinne Denis, Damien Le Borgne, Rodolphe Sonnier, Sylvain Caillol, Claire Negrell
Over the past decade, with the emergence of environmental and human health concerns, research has focused on developing new solutions to replace fossil resources with more sustainable biobased resources. Furan derivatives can be obtained from plants, and their structures provide high resistance to high temperatures. Furan derivatives have been functionalized with phosphorus (P) to increase their fire-resistance
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Sustainable feedstocks for 4D printing: biodegradable polymers and natural resources Green Mater. (IF 1.9) Pub Date : 2023-06-21 Leena V Bora, Kevin S Vadaliya, Nisha V Bora
Additive manufacturing is an emerging technology supported by ‘Industry 4.0’. When combined with a stimulus-responsive behavior, incorporating the fourth dimension of time, it results in a manufacturing technique known as four-dimensional (4D) printing. 4D-printed entities have the distinctive characteristic of property transformation, under the influence of a drafted stimulus, which can be cleverly
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Feasibility analysis of new green liquid dielectrics for transformers Green Mater. (IF 1.9) Pub Date : 2023-06-21 Thenkaraimuthu Mariprasath, Putha Kishore, Manchineellu Padmavathi
The insulating ingredient of the traditional transformer is a mineral oil with low combustibility and biodegradability. As a result, it is unsuitable for current and future transformer applications. Furthermore, finding fossil fuels is becoming increasingly difficult. As a result of the aforementioned limitations, there is a need to look for a replacement shielding oil. This study analysed the crucial
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Properties of agar/cassava starch films manufactured by hot-melt extrusion method Green Mater. (IF 1.9) Pub Date : 2023-06-16 Shelly Faradina, Bakti Berlyanto Sedayu, Mokhamad Nur, Dina Fransiska, Firda Aulya Syamani
Agar/cassava starch bioplastic film preparation using the extrusion technique was carried out to obtain a continuous production method that is more applicable to industrial production practices. Various ratios (w/w) of agar-and-cassava-starch blends were used in the bioplastic film formulations with glycerol as the plasticizer. All the ingredients were compounded using a single-screw extruder at 110°C
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Bio-sourced alternatives to diglycidyl ether of bisphenol A in epoxy–amine thermosets Green Mater. (IF 1.9) Pub Date : 2023-06-13 Romain Tavernier, Mona Semsarilar, Sylvain Caillol
Since the 1940s, bisphenol A (BPA) has been used in the plastic industry, reaching production of 10 Mt in 2022. More than 30% of the produced BPA is used in the production of epoxy resins. Decades of research has now provided enough evidence that BPA has endocrine-disrupting activity. Hence, it is an urgent matter to replace BPA in the production of epoxy resins. In the past years, considerable efforts
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CNSL oxyacetic derivatives, new bio-based binder for paint preparation Green Mater. (IF 1.9) Pub Date : 2023-06-08 Miarintsoa Michaële Ranarijaona, Sandratriniaina Hermann Rafanoela, Lydia Clarisse Herinirina, Marie Christine Duclos, Alban Léon Lavaud, Catherine Goux-Henry, Estelle Métay, Voahangy Ramanandraibe Vestalys, Marc Lemaire
The global coatings industry produces tens of millions of metric tons of paints each year and this quantity continues to grow. Most of them are obtained totally or partially from fossil resources and many of them still use VOCs (Volatile Organic Compounds) and/or other harmful chemicals. We describe in this article, the cashew nut shell liquid as a raw material for paint binder synthesis (sustainable
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Green antioxidant composites based on coffee by-products from the alcohol industry Green Mater. (IF 1.9) Pub Date : 2023-06-07 Enrique Terroba-Delicado, Juan Ivorra-Martínez, Jaume Gomez-Caturla, Lourdes Sanchez-Nacher, Nestor Montanes
Bio-based high-density polyethylene (BioHDPE)-loaded composites with different amounts of spent coffee powder (up to 30 wt.%) were successfully produced. The use of coffee residues coming from the alcoholic beverage industry in a BioHDPE matrix resulted in a remarkable improvement in the antioxidant properties of the composites. Waste spent coffee powder reduced the elastic modulus, hardness and storage
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Sustainable feedstocks for 4D printing: a review of biodegradable polymers and natural resources for stimuli-responsive manufacturing Green Mater. (IF 1.9) Pub Date : 2023-06-02 Leena V Bora, Kevin S Vadaliya, Nisha V Bora
Additive manufacturing (AM), alternatively known as 3D printing is an emerging technology supported by Industry 4.0. When combined with a stimulus-responsive behavior, decorated with the fourth dimension of time, it results in a manufacturing technique known as 4D printing. Although 4D printing technique is currently in its infancy stage, it has attracted exponential rise in attention in last 5 years
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The effect of lignin-based polyols on the properties of polyurethane coatings Green Mater. (IF 1.9) Pub Date : 2023-06-01 Fatemeh Hassani Khorshidi, Saeed Kazemi Najafi, Farhood Najafi, Antonio Pizzi, Dick Sandberg, Rabi Behrooz
The aim of this research was to replace petroleum-based polyols with polyols made from lignin and nano-lignin in the production of polyurethane coatings. Lignin and nano-lignin were first reacted with either diethylenetriamine or ethylenediamine. Subsequently, they were modified with propylene carbonate. The lignin- and nano-lignin-derived polyols replaced the conventional acrylic polyol in the production
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Fire retardant properties of chicken feather/TPU composites containing phosphorus fillers Green Mater. (IF 1.9) Pub Date : 2023-05-30 Aysenur Mutlu, Mehmet Dogan
The aim of this study was to enhance the flame-retardant properties of chicken-feather-reinforced thermoplastic polyurethane (TPU) composites by incorporating three different phosphorus-based flame retardants – namely, aluminum hypophosphite (AHP), ammonium polyphosphate (APP) and aluminum diethyl phosphinate (AlPi) – at concentrations of 5, 10 and 20 wt%. The effectiveness of the additives was evaluated
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Preparation and properties of rosin-based naphthalene fluorescent polyurethane Green Mater. (IF 1.9) Pub Date : 2023-05-30 Jianben Xu, Chengfei Yan, Guangjie Lu, Caili Yu, Faai Zhang
Fluorescent polyurethanes (FPUs) have been widely used in coatings, temperature recognition, fluorescent probes and other fields because of their diverse structures and properties. Unfortunately, most FPUs are currently produced from petroleum-based products. Herein, a thermoplastic rosin-based naphthalene FPU was prepared by using the biobased ester of acrylic rosin and glycidyl methacrylate, polycaprolactone
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Automated trackspinning of aligned lignin fibers as precursors of green carbon nanofibers Green Mater. (IF 1.9) Pub Date : 2023-05-19 Dave Jao, Abigail Heinz, Joseph F Stanzione III, Vince Z Beachley
At present, most carbon fibers are made from non-renewable polyacrylonitrile. Substantial efforts have been made to replace petroleum-based precursors for carbon fiber production. Interestingly, lignin is a carbon fiber precursor material that is cheap, highly available and sustainable. Submicron-scale lignin-based carbon nanofibers are used in numerous areas, such as electronic devices, batteries
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A study on Jordanian green natural agro-wastes as potential inhibitors of mild steel corrosion in HCl solution Green Mater. (IF 1.9) Pub Date : 2023-05-17 Mohammed T Hayajneh, Mohammed A Almomani, Wala’ M AlSharman
Mild steel is one of the most widely used materials in different engineering applications due to its mechanical properties, high availability and low cost. However, the exposure of the steel to acids such as hydrochloric acid (HCl) accelerates its corrosion rate. Green organic corrosion inhibitors are among the most effective materials for reducing the mild steel corrosion rate in an acidic medium
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Production of low carbon dioxide cement containing sewage sludge ash as mineral admixture Green Mater. (IF 1.9) Pub Date : 2023-03-13 Shubham Goswami, Dharmendra Kumar Shukla, Pramod Kumar Singh
Cement is an essential construction ingredient, and the demand for it has increased multifold during the last couple of years due to various construction activities. For the manufacturing of cement, limestone is a key component, which is a major source of carbon dioxide (CO2) emission. Moreover, municipalities all over the world have long been concerned about the disposal of sewage sludge. Due to increased
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A new thermal-tolerant bio-based zwitterionic surfactant for enhanced oil recovery Green Mater. (IF 1.9) Pub Date : 2023-02-28 Wei Wang, Ming-Yue Liang, Jian-Qiao Lang, Homely Isaya Mtui, Shi-Zhong Yang, Bo-Zhong Mu
Bio-based surfactants are increasingly important as an alternative to traditional petro-based surfactants owing to their renewable feedstocks and various applications in many industrial fields such as enhanced oil recovery (EOR). In this study, a new bio-based zwitterionic surfactant with a strong interfacial activity at high temperatures of up to 120°C was developed through the modification of methyl
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Compatibilization of coir fiber and elastomeric polyurethane by green modification routes Green Mater. (IF 1.9) Pub Date : 2023-02-17 Ümit Tayfun, Alinda Öykü Akar, Fırat Hacıoğlu, Mehmet Doğan
Tuning the chemical functionality of lignocellulosic fiber plays a key role in the development of mechanically strong composites to overcome the lack of compatibility between composite phases, which is a major challenge in multidimensional applications of eco-composites. Herein, coir fiber (CF) surfaces were enriched through four kinds of modification routes – namely, mercerization, amino-functional
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Hydrothermally synthesized Mo/Zr MOF photocatalyst for promoting the removal of Cr6+ Green Mater. (IF 1.9) Pub Date : 2023-02-08 Wenyu Ren, Yi Wang, Jin Wang, Ruixue Sun
The development of highly efficient photocatalysts for the degradation of organic dyes and heavy metal ions is necessary to control pollution in the environment and further protect human health. This paper reports nmolybdenum (Mo)/zirconium (Zr) metal–organic frameworks (MOFs) (n = 1, 2, 3 and 4; nMZMs) synthesized by using a simple hydrothermal method for efficient photocatalytic chromium (VI) (Cr6+)
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Adsorption performance of macadamia husk-activated carbon from a household pyrolysis kiln Green Mater. (IF 1.9) Pub Date : 2023-02-06 Suthee Wattanasiriwech, Matchima Naradisorn, Darunee Wattanasiriwech
Activated carbon has found key applications in the adsorption of polluted industrial dyes in water. In this work, macadamia husk biochar (MHC) was prepared using a household pyrolysis kiln before being activated with phosphoric acid (H3PO4) to obtain macadamia-husk-activated carbon (MHAC). A preliminary study was made on two activation conditions of MHC:phosphoric acid (w/v), 1:1 and 1:3, for the removal
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New α-NaFeO2 synthesis route for green sodium-ion batteries Green Mater. (IF 1.9) Pub Date : 2023-01-17 Maria Gabriella Detone Guaita, Otávio José de Oliveira, Paulo Rogério Catarini da Silva, Luiz Henrique Dall’Antonia, Alexandre Urbano
New technologies have been investigated to replace the use of lithium and cobalt ions, raw materials of the cathode active material of lithium-ion batteries. Among the emerging technologies stands out one that uses sodium (Na+) and iron ions. Sodium iron oxide (NaFeO2) has polymorphism, with only the α phase being active for the reversible deintercalation of sodium ions, so this phase has potential
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Extrusion plastometry processing of poly(3-hydroxybutyrate)/ground wool fiber blends Green Mater. (IF 1.9) Pub Date : 2023-01-11 Hailemichael O Yosief, Cheng-Kung Liu, Richard D Ashby, Gary D Strahan, Nicholas Latona, Nusheng Chen
Poly(3-hydroxybutyrate) (PHB) is a well-known member of the polyhydroxyalkanoate family of biopolymers, and it has been extensively investigated as an environmentally benign replacement for petrochemical-based polymers. The practical application of PHB in the biomedical field and in packaging has been limited because of its relatively narrow processing window, high brittleness and low thermal stability
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Application of extrusion plastometry in poly(3-hydroxybutyrate) (PHB) processing and the effect of ground wool fiber on the mechanical properties of PHB/wool blends Green Mater. (IF 1.9) Pub Date : 2022-12-15 Hailemichael O Yosief, Cheng-Kung Liu, Richard D Ashby, Gary D Strahan, Nicholas Latona, Nusheng Chen
Poly(3-hydroxybutyrate) (PHB) is a well-known member of the polyhydroxyalkanoate family of biopolymers and it has been extensively investigated as an environmentally-benign replacement for petrochemical-based polymers. The practical application of PHB in the biomedical field and in packaging has been limited because of its relatively narrow processing window, high brittleness, and low thermal stability
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Greener and scalable synthesis of N-methyl imines using a sustainable functional polymer Green Mater. (IF 1.9) Pub Date : 2022-10-13 Peyman Mihankhah, Nader Ghaffari Khaligh
N-Methyl imines, as simple Schiff bases, could be prepared using a more sustainable and greener system, including a 33 wt.% solution of methylamine in absolute ethanol, and poly(N-vinylimidazole) (PVIm) at room temperature within 45–60 min. PVIm is a biocompatible, biodegradable and water-soluble synthetic solid functional polymer. It was indicated that PVIm can act as a reagent with multiple tasks
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Research advances in vegetable-oil-based pressure-sensitive adhesives Green Mater. (IF 1.9) Pub Date : 2022-09-27 Yufeng Ma, Yuan Ji, Jiale Zhang, Ye Sha, Puyou Jia, Yonghong Zhou
Pressure-sensitive adhesive (PSA) is a kind of viscoelastic material with the viscous properties of liquids and the elastic properties of solids that can adhere to the surfaces of various substrates only under light pressure without phase change. PSAs derived from petroleum-based materials are generally non-biodegradable and disposable; therefore, a large amount of waste is generated from PSA products
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Study of the mechanical properties of polylactide composites with jute reinforcements Green Mater. (IF 1.9) Pub Date : 2022-09-27 Diego Lascano, Cristobal Aljaro, Eduardo Fages, Sandra Rojas-Lema, Juan Ivorra-Martinez, Nestor Montanes
Concern has arisen in recent years over the excessive use of oil-based materials, making the development of new materials with a low environmental impact all the more urgent. In this study, environmentally friendly composites were obtained using a thermoplastic polylactide (PLA) matrix with jute fibers (fabrics and non-woven mats) as reinforcement. PLA/jute biocomposites were manufactured by thermocompression
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Green synthesis of nano-CuFe2O4/clinoptilolite and its use in benzodiazepine synthesis Green Mater. (IF 1.9) Pub Date : 2022-09-21 Nazanin Gholamrezaeenya, Kazem Mahanpoor, Keivan Ghodrati, Masoomeh Abdoli-Senejani, Azam Marjani
In this research, a copper ferrite (CuFe2O4) nanocatalyst stabilized on clinoptilolite (CP) was prepared using green tea (Camellia sinensis) leaf extract. Fourier transform infrared spectra, X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray analysis, transmission electron microscopy (TEM), the Brunauer–Emmett–Teller (BET) method, thermogravimetric
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Effect of chitosan concentration on physicochemical properties of starch-based straws Green Mater. (IF 1.9) Pub Date : 2022-09-12 Wendong Fan, Jing Zhao, Houru Zong, Quanhong Li
China’s 2021 ban on disposable (single-use) plastic straws and bags has necessitated the invention of more biodegradable straws. However, the application of starch-based straws is limited by their poor mechanical properties. Under high-temperature and high-pressure conditions, starch becomes a paste and its molecular hydrogen bonds are broken. After adding chitosan (CH), the CH and starch can form
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Graphene nanoplatelets–cellulose nanocrystals in engine oil for automotive applications Green Mater. (IF 1.9) Pub Date : 2022-07-18 G Kadirgama, A Kumar, M Sandhya, L Samylingam, D Ramasamy, K Kadirgama, H A Mohammed, M Samykano, R Saidur
The friction and wear of worn surfaces is a principal cause of energy dissipation in automobile engines. The current study investigates graphene nanoplatelets (GNPs), based on a carbon allotrope, that have good thermal, physical and chemical properties, and cellulose nanocrystals (CNCs) as a universal nano-sized ecological biopolymer. In view of this, the objective of the present work is to enhance
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Performance properties of engineered wood composites reinforced by lignosulfonates Green Mater. (IF 1.9) Pub Date : 2022-07-06 Mert Yildirim, Zeki Candan, Burak Aksoy, Turker Dundar
The aim of the study was to investigate the effect of two different types of lignosulfonate (LS1 and LS2) added to urea–formaldehyde adhesive on the performance properties of five-layered plywood panels. The physical properties (density, thickness swelling, water absorption and moisture content), mechanical properties (modulus of rupture, modulus of elasticity and bonding quality) and free formaldehyde
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Dimer acid polyamide/montmorillonite bio-based film for the challenge of air cushions Green Mater. (IF 1.9) Pub Date : 2022-07-04 Yunfan Lu, Chen Li, Jian Zhang, Yuxuan Guo
The increasing use of air cushions in transport packaging brings increased environmental damage due to discarded packaging. A possible solution is to replace petroleum-based polymers with dimer acid polyamide. This work studied the qualities of dimer acid polyamide films with montmorillonite (MMT) addition. The layer structure of MMT and the heterogeneous nucleation effect augment the crystal content
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Modification of kapok cotton fibres into porous cellulose triacetate beads for oil spill remediation Green Mater. (IF 1.9) Pub Date : 2022-06-09 Zhi Yong Kang, Joel Ashervin Zachariah, Eric Wei Chiang Chan, Michelle Oi Yoon Soo
Marine oil spills have been widely reported, and bioremediation is proposed to be an environmentally friendly approach to clean these spills. However, maintaining a high biomass of oil-degrading bacteria has proved challenging. Here, a carrier that enables simultaneous bacterial immobilisation and oil absorption is proposed as a solution. Porous cellulose triacetate beads (PCTBs) derived from cellulose
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Investigation of Dioscorea oppositifolia L. as green lubricant in water-based drilling fluids Green Mater. (IF 1.9) Pub Date : 2022-06-08 Wen Tian, Qingchen Wang, Xiongxiong Liu, Weichao Du, Jie Zhang, Chen Gang
With the increasing exploration of unconventional wells, such as horizontal wells and complex wells, and the increasingly strict national environmental protection regulations, drilling fluid lubricants are in increasing demand. High-performance and environment-friendly lubricants for water-based drilling fluids are urgently needed. In this work, Chinese yam (Dioscorea oppositifolia L.) was investigated
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Incorporation of epoxidized oleic acid plasticizer into poly(vinylidene fluoride) Green Mater. (IF 1.9) Pub Date : 2022-05-30 Wan Nur Fatihah Wan Muhammad Zulkifli, Ahmad Syafiq Ahmad Hazmi, Zainab Idris
Poly(vinylidene fluoride) (PVDF) polymers are utilized in the processing of foods and beverages due to their highly stable nature. This makes plasticizer selection crucial. The incorporation of epoxidized oleic acid (EOA) as a bio-plasticizer into PVDF in the solution blending process was investigated. Scanning electron microscopy analysis showed the toughening effects in the structure of the blends
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Development of an insulating material based on Trametes elegans mycelium and the study of its hygrothermal properties Green Mater. (IF 1.9) Pub Date : 2022-02-10 N Farrera-Vázquez, L Aviles-Trujilo, J Moreira-Acosta, O García-Ramos, A Velazquez-Gurrola, A Aguilar-Castillejos, L Vargas-Estrada, P J Sebastian
This work presents the hygroscopic and thermal properties of a material developed from cornstalk and mycelium. The materials were produced using strains of macromycete fungi Trametes elegans as a natural binder for application as thermal isolation. The results shown are for the equilibrium moisture content on a wet basis and on a dry basis, moisture absorption in different relative humidity environments
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Synthesis and characterisation of chromium, eggshell and grinding sludge-reinforced aluminium metal matrix composite: an experimental approach Green Mater. (IF 1.9) Pub Date : 2022-01-14 Shashi Prakash Dwivedi, Manish Maurya, Shubham Sharma
This investigation deals with the utilisation of industrial waste to develop an aluminium (Al)-based composite. Waste eggshell (ES) generated from the food industry has been used as the primary reinforcement material. Waste grinding sludge (GS) produced from the iron-forging sector was utilised as the secondary reinforcement content. Chromium (Cr) was also added to the composite material to prevent
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Development and characterization of hybrid composites from sustainable green materials Green Mater. (IF 1.9) Pub Date : 2021-12-14 Mert Yildirim, Tolera Aderie Negawo, Ali Kilic, Zeki Candan
The main objective of this study was to evaluate the dynamic mechanical thermal analysis (DMTA), mechanical, physical and wettability properties of hybrid composites developed from sustainable green materials, jute fiber and wood particles that were manufactured by using the vacuum-assisted resin transfer molding technique. The storage modulus, loss modulus and tan δ values of the hybrid composites
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Pyrolysis of waste polyolefins and e-component to produce renewable green fuel over cadmium carbonate Green Mater. (IF 1.9) Pub Date : 2021-12-06 Man Vir Singh, Sudesh Kumar
The interest and relevance of the present paper are in the current waste plastic valorisation scenario. The rapid depletion of fossil source carbon as crude oil and its ever-increasing costs have led to an intensive search for alternative fuels. An alternative or renewable green fuel (RGF) was obtained from waste low- and high-density polyethylene or polyolefins and computer body plastics through a
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Enabling mechanically adaptive 4D printing with cellulose nanocrystals Green Mater. (IF 1.9) Pub Date : 2021-12-01 Tyler W Seguine,Jacob J Fallon,Arit Das,Emily A Holz,Mindy R Bracco,Justin E Yon,Earl Johan Foster,Michael J Bortner
Additive manufacturing of stimulus-responsive materials is an area of four-dimensional (4D) printing that is continuing to gain interest. Cellulose nanocrystal (CNC) thermoplastic nanocomposites have been demonstrated as a water-responsive, mechanically adaptive material that shows promise in generating 4D-printed structures. In this study, a 10 wt% CNC thermoplastic polyurethane (TPU) nanocomposite
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Controlled shape memory effects of magnetic polymer nanocomposites by induction heating Green Mater. (IF 1.9) Pub Date : 2021-12-01 Brody A Frost,Hayden Carlton,Ricardo Martinez,Erica Lovett,David Huitink,E Johan Foster
Interest in stimuli-responsive materials has increased rapidly, leading to a multitude of innovative applications in biomedical design. This study seeks to induce controlled shape memory effects through induction heating of magnetic polymer nanocomposites while retaining thermal consistency within attached hydrogel composites for various biomedical applications. Three commonly used polymer matrices
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Modification of waste persimmon peel and application in water-based drilling fluid Green Mater. (IF 1.9) Pub Date : 2021-11-24 Long Gao, Xuefan Gu, Yan Sun, Weichao Du, Jie Zhang, Gang Chen
To develop a green drilling fluid additive, the modification and application of persimmon peel in a water-based drilling fluid was studied in this work. A natural product derivative, aluminium chloride–persimmon peel (ACPP), was prepared from aluminium chloride and persimmon peel and was assessed as a shale inhibitor. The clay-swelling ratio in 0.30% ACPP-3 solution was reduced to 28.10% from 69.50%
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Preparation and mechanical properties of green epoxy/chitosan/silver nanocomposite Green Mater. (IF 1.9) Pub Date : 2021-10-22 Abu Mahmud, Chaity Dev, Moumita Tasnim Meem, Md Abdul Gafur, Md Asadul Hoque
Epoxy is being extensively used in various engineering and structural applications. Epoxy is non-biodegradable, thus creating ecological problems. Apart from ecological problems, epoxy resin shows poor biofouling prevention in marine, freshwater and offshore environments. In the search for an eco-friendly solution to this problem, epoxy/chitosan/silver nanocomposites were devised. Chitosan was extracted
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Polyurethane foam from grape-seed-based polyol Green Mater. (IF 1.9) Pub Date : 2021-09-28 Shuailing Gu, Tingxuan Yan, Zongtao Zuo, Qiang Shao, Biao Wang, Xinlong Li, Fanhui Geng, Kai Zhang, Xia Xu, Jian Xu
Grape seeds are abundant in the wine production process. Liquefying them into polyether polyols has been proved a suitable utilization route. Although grape seeds can be liquefied without fractionation, different components have different properties, which might ultimately affect the properties of the polyether polyol. In this study, grape seeds were fractionated by different pretreatment methods.