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KCG复合气凝胶的制备及其对亚甲基蓝的吸附性能
Preparation of KCG composite aerogels and their adsorption performance towards Methylene Blue
【摘要】 羧基化纤维素纳米晶体(C-CNC)通过共混法掺入至角蛋白(keratin)中,以增强材料的韧性和机械性能;再添加作为纳米填料的氧化石墨烯(GO)增强其吸附能力;最后通过冷冻干燥法制备了角蛋白/C-CNC/GO复合气凝胶。结果表明,在C-CNC和GO的联合作用下,复合气凝胶的最大压缩强度可达366.34 kPa,对亚甲基蓝(MB)的吸附容量为477.01 mg/g。吸附过程遵循准二阶动力学和Langmuir等温模型。研究表明,角蛋白/C-CNC/GO复合气凝胶具有高效稳定的吸附性能,在处理染料废水方面具有良好的前景。
【Abstract】 Carboxymethylated cellulose nanocrystals(C-CNC) are incorporated into keratin through a blending method to enhance the toughness and mechanical properties of the material. Subsequently, graphene oxide(GO), serving as a nanofiller, is added to enhance its adsorption capacity. Keratin/C-CNC/GO composite aerogels are prepared by freeze-drying method. The results show that the combined action of C-CNC and GO leads to a composite aerogel with a maximum compressive strength of 366.34 kPa, and a maximum Methylene Blue(MB) adsorption capacity of 477.01 mg/g. The adsorption process follows pseudo-second-order kinetics and Langmuir isotherm model. Research shows that the keratin/C-CNC/GO composite aerogel has highly efficient and stable adsorption performance and holds great promise in the treatment of dye wastewater.
【Key words】 keratin; carboxymethylated cellulose nanocrystals; graphene oxide; adsorption; Methylene Blue;
- 【文献出处】 印染 ,China Dyeing & Finishing , 编辑部邮箱 ,2025年09期
- 【分类号】TQ427.26;O647.3;X703
- 【下载频次】90