Algae have adsorption properties and reducing agents due to their rich content. In this study, palladium nanoparticles (Pd NP), platinum nanoparticles (Pt NP), and iron oxide nanoparticles (Fe3O4 NP) were prepared from Codium macroalgae using green synthesis. The structure of the synthesized nanoparticles was elucidated by X‐ray diffractometry, Fourier transforms infrared spectroscopy, Brunauer–Emmett–Teller analysis, transmission electron microscopy, ultraviolet‐visible spectroscopy and scanning electron microscopy‐energy dispersive X‐ray spectrometry and their use as nanoadsorbents for the removal of pollutants from aqueous media was investigated in detail. Naproxen (NPX), an anti‐inflammatory drug, and the dyes methylene blue (MB) and cresol red (CR) were selected as pollutants for this study. Batch adsorption experiments were conducted using both real wastewater obtained from the Organised Industrial Zone of Isparta Province and synthetic water samples prepared with tap water from Burdur Province and pure water. Under optimum adsorption conditions, Pd NP showed significant efficiency in the real wastewater sample, with an adsorption capacity of 37.19 and 50.03 mg g–1 for CR and NPX, respectively, within 150 min. In comparison, Pt NP showed an adsorption capacity of 40.01 mg g–1 for MB within the same timeframe. These findings indicate that while Pd NP showed the highest adsorption capacity for both CR and NPX, Pt NP showed the highest adsorption capacity for MB. The Langmuir model and the pseudo‐second‐order equation were more suitable to describe the adsorption behavior of CR, MB, and NPX. In addition, studies on the desorption and reusability of the nanoadsorbents were carried out under the same optimum experimental conditions.

中文翻译：

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藻类绿色合成金属纳米颗粒用于吸附去除废水污染物

藻类因其含量丰富而具有吸附性能和还原剂。在这项研究中，钯纳米颗粒（Pd NP）、铂纳米颗粒（Pt NP）和氧化铁纳米颗粒（Fe3氧4NP) 制备自巨藻采用绿色合成。通过X射线衍射、傅里叶变换红外光谱、Brunauer-Emmett-Teller分析、透射电子显微镜、紫外-可见光谱和扫描电子显微镜-能量色散X射线光谱法阐明了合成纳米颗粒的结构及其作为纳米吸附剂的用途详细研究了从水介质中去除污染物的方法。本研究选择了抗炎药萘普生（NPX）以及染料亚甲蓝（MB）和甲酚红（CR）作为污染物。使用从伊斯帕尔塔省有组织工业区获得的真实废水以及用布尔杜尔省自来水和纯水制备的合成水样进行批量吸附实验。在最佳吸附条件下，Pd NP 在实际废水样品中表现出显着的吸附效率，吸附容量分别为 37.19 和 50.03 mg·g–1分别针对 CR 和 NPX，在 150 分钟内完成。相比之下，Pt NP 的吸附容量为 40.01 mg g–1MB 在同一时间范围内。这些发现表明，虽然 Pd NP 对 CR 和 NPX 表现出最高的吸附能力，但 Pt NP 对 MB 表现出最高的吸附能力。 Langmuir模型和准二阶方程更适合描述CR、MB和NPX的吸附行为。此外，在相同的最佳实验条件下对纳米吸附剂的解吸和可重复使用性进行了研究。