等离子体接枝法制备PET-g-AM纤维的铜离子吸附性能研究  

Research of Cu2+ adsorption by PET-g-AM prepared by plasma grafting

作　　者：刘小钊 赵川 贾保印 LIU Xiaozhao;ZHAO Chuan;JIA Baoyin(Faculty of Textile Science and Engineering,Xi'an Polytechnic University,Xi'an 710048,China)

机构地区：[1]西安工程大学纺织科学与工程学院

出　　处：《印染助剂》2019年第5期15-19,共5页Textile Auxiliaries

基　　金：陕西省教育厅自然科学专项基金项目(14JK1298)

摘　　要：考察了丙烯酰胺接枝改性聚酯纤维(PET-g-AM)的吸附性能,研究了改性纤维作为吸附剂对水溶液中Cu2+的吸附过程,探讨了溶液pH、吸附温度、吸附时间、Cu2+初始质量浓度对吸附量的影响。采用Freundlich、Langmuir等温吸附方程和准一级动力学、准二级动力学模型进行模拟,结果表明,改性后的聚酯纤维对Cu2+具有良好的吸附效果,吸附过程符合Freundlich方程和准二级动力学模型。The adsorption of graft modified polyester fibers with acrylamide (PET-g-AM) were studied. The adsorption process of Cu^2+ in aqueous solution by modified fibers as adsorbents was studied. The effects of solution pH, adsorption temperature and time, initial mass concentration of Cu^2+ on adsorption capacity were discussed. Freundlich, Langmuir isothermal adsorption equation, quasi first-order kinetics and quasi-second-order kinetics model were used for simulation. The results showed that the modified polyester fibers had good adsorption effect to Cu^2+ and the adsorption equilibrium process conformed to Freundlich model and quasi-sec ond-order kinetics model.

关 键 词：改性聚酯纤维 丙烯酰胺 CU2+ 吸附等温线 动力学 

分 类 号：TQ342[化学工程—化纤工业] TS102[轻工技术与工程—纺织工程]