Fe_(3)O_(4)-Cell-PGMA-PEI的制备及其对水中Pb2+的吸附研究  

Study on the Preparation of Fe_(3)O_(4)-Cell-PGMA-PEIand Its Adsorption of Pb (Ⅱ) in Water

作　　者：王中华[1,2] 刘明源 陈亚运[1] 刘智 WANG Zhong-hua;LIU Ming-yuan;CHEN Ya-yun;LIU Zhi(Taizhou Polytechnical Institute,Taizhou Jiangsu 225300,China;Taizhou Green Chemical Engineering Technology Center,Taizhou Jiangsu 225300,China)

机构地区：[1]泰州职业技术学院,江苏泰州225300 [2]泰州市绿色化工工程技术中心,江苏泰州225300

出　　处：《当代化工》2023年第12期2842-2846,2852,共6页Contemporary Chemical Industry

基　　金：2021年度泰州市科技支撑计划(社会发展)项目,纤维素基多胺型螯合吸附剂对重金属Pb(II)的吸附研究(项目编号:202103)。

摘　　要：以纤维素为原料,采用共沉淀法将Fe_(3)O_(4)粒子负载于纤维素中,然后用甲基丙烯酸缩水甘油酯与磁性纤维素进行接枝共聚,再与聚乙烯亚胺进行胺化反应,制得Fe_(3)O_(4)-Cell-PGMA-PEI,采用FT-IR、EA、XPS、TGA等方法对磁性吸附剂进行结构表征。在静态条件下,研究吸附剂用量、吸附时间、溶液初始p H、温度等因素对Fe_(3)O_(4)-Cell-PGMA-PEI吸附Pb2+效果的影响,确定吸附的最佳条件。Using cellulose as raw material,Fe_(3)O_(4) particles were loaded into cellulose by coprecipitation method,then the magnetic cellulose was grafted with glycidyl methacrylate(GMA),and aminated with polyethylene imine(PEI)to prepare Fe_(3)O_(4)-Cell PGMA-PEI,its structure was characterized by FT-IR,FT-IR,EA,XPS,TG/DTG.Under static condition,the effects of the dosage of adsorbent,adsorption time,initial pH and temperature on the adsorption of Pb2+by Fe_(3)O_(4)-Cell-PGMA-PEI were studied,and the best adsorption conditions were determined.

关 键 词：纤维素 磁性 螯合吸附 去除率 吸附容量 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]