Fast removal of Pb^(2+) from water using new chelating fiber modified with acylamino and amino groups  

作　　者：Ying Meng Jin Nan Wang Li Xu Ai Min Li 

机构地区：[1]State Key Laboratory of Pollution Control and Resource Reuse&School of the Environment,Nanjing University,Nanjing 210046,China

出　　处：《Chinese Chemical Letters》2012年第4期496-499,共4页中国化学快报（英文版）

基　　金：support provided by the National Science Funds for Young Scientists(No. 51008152);the Nature Science Fund of Jiangsu Province(No.BK2010381);the Fundamental Research Funds for the Central Universities

摘　　要：The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initiated by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET fiber（PET-AA） was done by changing the carboxyl group into acylamino and amino groups through the reaction with ethylenediamine.The new modified chelating fiber （NDWJN6） was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curve indicated that NDWJN6 could fastly remove Pb^（2＋） from water,and adsorption isotherm also indicated that NDWJN6 had high equilibrium adsorption capacity for Pb^（2＋）.The graft copolymerization of acrylic acid（AA） onto polyethylene glycol terephthalate（PET） fiber initiated by benzoy peroxide （BPO） was carried out in heterogeneous media.Moreover,modification of the grafted PET fiber（PET-AA） was done by changing the carboxyl group into acylamino and amino groups through the reaction with ethylenediamine.The new modified chelating fiber （NDWJN6） was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curve indicated that NDWJN6 could fastly remove Pb^（2＋） from water,and adsorption isotherm also indicated that NDWJN6 had high equilibrium adsorption capacity for Pb^（2＋）.

关 键 词：REMOVAL Pb2＋ Chelating fiber Acylamino groups Amino groups 

分 类 号：TQ342.792[化学工程—化纤工业] TQ612.1