Ramie bone (RB), an agricultural waste generated in the textile industry, is a vastly productive renewable natural resource with the potential to be used as a source of cellulose. In this study, ramie bone cellulose (RB-CE) was obtained in one step using a simple and ecologically friendly hydrogen peroxide-citric acid (HPCA) treatment procedure that avoided the use of halogenated reagents and strong acids while also streamlining the treatment processes. Various analytical methods were used to investigate the chemical composition and structure, crystallinity, morphology, thermal properties, surface area and hydration properties of cellulose separated at different treatment temperatures. HPCA successfully removed lignin and hemicellulose from RB, according to chemical composition analysis and FTIR. RB-CE had a type I cellulose crystal structure, and the crystallinity improved with increasing treatment temperature, reaching 72.51 % for RB-CE90. The RB-CE showed good thermal stability with degradation temperatures ranging from 294.2 °C to 319.1 °C. Furthermore, RB-CE had a high water/oil binding capacity, with RB-CE90 having WHC and OBC of 9.68 g/g and 7.24 g/g, respectively. The current work serves as a model for the environmentally friendly and convenient extraction of cellulose from biomass, and the cellulose obtained can be employed in the field of food and composite materials.

中文翻译：

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绿色过氧化氢-柠檬酸一步法分离苎麻骨中的纤维素

苎麻骨 (RB) 是纺织工业中产生的一种农业废物，是一种产量巨大的可再生自然资源，具有用作纤维素来源的潜力。在这项研究中，使用一种简单且生态友好的过氧化氢-柠檬酸（HPCA）处理程序一步获得了苎麻骨纤维素（RB-CE），该处理程序避免了卤化试剂和强酸的使用，同时也简化了处理过程。采用各种分析方法研究了不同处理温度下分离的纤维素的化学组成和结构、结晶度、形貌、热性能、表面积和水化性能。根据化学成分分析和 FTIR，HPCA 成功去除了 RB 中的木质素和半纤维素。 RB-CE具有I型纤维素晶体结构，结晶度随着处理温度的升高而提高，RB-CE90的结晶度达到72.51%。 RB-CE 显示出良好的热稳定性，降解温度范围为 294.2 °C 至 319.1 °C。此外，RB-CE具有较高的水/油结合能力，RB-CE90的WHC和OBC分别为9.68 g/g和7.24 g/g。目前的工作为从生物质中环保、便捷地提取纤维素提供了典范，所得纤维素可用于食品和复合材料领域。