木质素改性材料对染料吸附性能的研究进展

Progress on the Adsorption Properties of Lignin-modified Materials for Dyes

本文综述了木质素改性材料在吸附去除水体中染料方面的研究进展。首先对木质素结构进行解析,着重分析了改性木质素对不同类型染料(亚甲基蓝、刚果红、孔雀石绿等)的吸附性能,并对木质素改性方法 (酚醛改性、磺化处理和接枝共聚等)与吸附性能间的构效关系进行探讨,揭示了改性木质素在提高吸附能力、增加选择性和促进吸附剂再生方面的优势,并对未来改性木质素吸附材料的发展方向进行了展望。

This paper reviewed the research progress of lignin modified materials in the adsorption and removal of dyes from water.Firstly,the structure of lignin was analyzed,and the adsorption performance of modified lignin was analyzed with a focus on different types of dyes(methylene blue,Congo red,malachite green).By discussing the structure-effect relationship between adsorption properties and lignin modification methods(phenolic modification,sulfonation treatment and graft copolymerization),this paper revealed the advantages of modified lignin in improving the adsorption capacity,increasing the selectivity,and facilitating the regeneration of the adsorbent,and offered a prospect for the future direction of the development of lignin-based adsorbent materials.