摘要
纤维素和木质纤维素中含有许多亲水性的羟基基团,通过羟基的衍生化反应,可以将其制备成离子吸附剂。本文综述了近年来国内外以纤维素为基础原料制备离子吸附剂的研究进展,主要介绍了吸附剂的原料、种类、影响重金属离子去除的各种因素,并探讨了吸附机理。
There are large amount of relatively easily accessible hydroxyl groups in the cellulose and hemicellulose. The useful adsorbents with higher adsorption capacity toward metal ions can be obtained through derivatization of hydroxyl groups in the polysaccharides, fibers and lignocellulosic materials. The research progress of cellulose-based adsorbents was reviewed. The origin and category of the cellulose-based adsorbents were introduced. The factors which influence the properties of heavy metal adsorption and the mechanism of adsorption were discussed. Keywords Cellulose, Adsorption, Agricultural residual, Chemical modification, Metal ions
出处
《化学通报》
CAS
CSCD
北大核心
2008年第12期891-899,共9页
Chemistry
基金
广东省自然科学基金项目(E06200692)
广东省攻关项目(2006A20401001)
广州市科技计划项目(06a1406285)资助
关键词
纤维素
吸附
农业废弃物
化学改性
金属离子
Cellulose,Adsorption,Agricultural residual,Chemical modification,Metal ions
