Modified polypropylene fabrics adsorbent for effective Vanadium adsorption
Amine-functionalized adsorbents have attracted increasing interest in recent years for heavy metal removal. In this study, a new modified fabrics are synthesized by radiation induced grafting of itaconic acid (IA) and acrylonitrile (AN) onto polypropylene nonwoven fabrics and subsequent conversion of carboxyl groups in grafted IA and cyano in grafted AN to an amine by reaction with ethylene diamine (EDA). The adsorbent with a very high content of amine groups was examined for vanadium ion removal in a series of adsorption experiments. It was found that adsorbent achieved excellent adsorption performance in vanadium ion removal at pH>3.76. The adsoption amount of V 5+increased with increasing initial ion concentration then reached a plateau value at higher concentration. FTIR and TGA test indicated that cyano, carboxyl and imine groups were introduced into grafted and aminated fabrics respectively.
ZU Jianhua WEN yunluo YOUNG Chang Nho JEUN Joon Pyo YAN Feng YU Chengbing
Shanghai Applied Radiation Institute, Shanghai University, Shanghai 201800, China Korea Atomic Energy Research Institute, Jueongup, Korea Department of Polymer Material, Shanghai Department of Polymer Material, Shanghai University, Shangh
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
635-637
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）