木质素磺酸盐-壳聚糖吸附剂的制备及其对Cu^(2+)和Co^(2+)的吸附性能  

Preparation of lignosulfonate-chitosan adsorbent and its adsorption performance on Cu^(2+) and Co^(2+)

作　　者：穆瑞花[1] MU Ruihua(School of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《纺织高校基础科学学报》2022年第3期88-94,共7页Basic Sciences Journal of Textile Universities

基　　金：陕西省重点研发计划项目(2022SF-287)。

摘　　要：针对现有吸附剂合成成本高、制备工艺复杂以及吸附性能差,以丙烯酸、木质素磺酸盐和壳聚糖为原料,利用自由基聚合法制备了一种新型的木质素磺酸盐/壳聚糖多孔吸附剂(即CSL吸附剂)。通过SEM、FT-IR以及TGA等手段对CSL吸附剂的形貌、结构及热性能进行观察与表征分析,并研究了CSL吸附剂对Cu^(2+)和Co^(2+)的吸附效果。结果表明:CSL吸附剂能有效吸附水溶液中的重金属离子,对Cu^(2+)和Co^(2+)的去除效果良好。利用CSL吸附剂处理Cu^(2+)、Co^(2+)是一种绿色环保的方法。In view of the disadvantages of existing adsorbents,such as high synthesis cost,complex preparation process and poor adsorption performance porous lignosulfonate/chitosan adsorbent was prepared by simple radical polymerization of acrylic acid in the mixed solution of lignosulfonate and chitosan.The morphology,structure and the thermal properties of CSL adsorbent were observed and characterized by SEM,FT-IR and TGA.The adsorption effect of CSL adsorbent on Cu^(2+)and Co^(2+)was also studied.The results show that the adsorbent can effectively adsorb heavy meta lions in aqueous solution,and has better removal effect for Cu^(2+)and Co^(2+).The treatment of Cu^(2+)and Co^(2+)with CSL adsorbent is a green and environmentally friendly method.

关 键 词：吸附剂 重金属离子 吸附容量 

分 类 号：X791[环境科学与工程—环境工程]