改性壳聚糖磁性微球对盐酸四环素的吸附研究  

A Study of adsorption of themodified chitosan magnetic microspheres for tetracycline hydrochloride

作　　者：薛小旭[1] 顾国卫 陈昌泽 胡晓东 许泽 谢啟发 Xue Xiaoxu;Gu Guowei;Cheng Changze;Hu Xiaodong;Xu Ze;Xie Qifa(Kangda College of Nanjing Medical University,Jiangsu Lianyungang 222000)

机构地区：[1]南京医科大学康达学院,江苏连云港222000

出　　处：《云南化工》2020年第9期33-35,共3页Yunnan Chemical Technology

基　　金：南京医科大学科技发展基金(NMUB2018263);江苏省大学生创新创业训练计划项目(201913980009Y)。

摘　　要：以丙烯酸(AA)为单体,通过接枝聚合的方法对磁性壳聚糖微球(CS-MCP)进行改性,制备改性壳聚糖磁性小球(CS-MCP-PAA)。以盐酸四环素为目标污染物,考察了吸附剂的质量、吸附温度和溶液初始浓度对吸附过程的影响。结果表明:与CS-MCP相比,CS-MCP-PAA对TC有较高的吸附量,吸附容量随着吸附剂用量的增加而减小,随溶液初始浓度的增加而增加,升高温度有利于吸附的进行,对TC的吸附属于吸热过程。The chitosan magnetic microsphere( CS-MCP) was modified by graft polymerization with acrylic acid( AA) as monomer to prepare the modified chitosan magnetic microsphere( CS-MCP-PAA). With tetracycline hydrochloride( TC) as the target pollutant,the effects of adsorbent mass,adsorption temperature and solution initial concentration on the adsorption process were investigated. The results show that: compared with CS-MCP,CS-MCP-PAA has a higher adsorption capacity for TC. The adsorption capacity decreases with the increase of adsorbent dosage,and increases with the increase of initial concentration of solution. The increase of temperature is conducive to the adsorption.

关 键 词：壳聚糖 磁性微球 接枝聚合 盐酸四环素 吸附 

分 类 号：O636.1[理学—高分子化学]