Fast removal of heavy metal ions and phytic acids from water using new modified chelating fiber

被引：0
|
作者：
Li Xu
机构：
来源：
Chinese Chemical Letters | 2012年 / 23卷 / 01期
基金：
中央高校基本科研业务费专项资金资助;
关键词：
Removal; Heavy metal ions; Phytic acid; Modified chelating fiber;
D O I：
暂无
中图分类号：
TQ028 [分离过程];
学科分类号：
081701 ; 081704 ;
摘要：
The graft copolymerization of acrylic acid(AA) onto polyethylene glycol terephthalate(PET) fiber initialed 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 group through the reaction with dimethylamine.The modified chelating fiber(NDWJN1) was characterized using elementary analysis,SEM and FT-IR spectroscopy.Adsorption kinetic curves indicated that NDWJNl could fast remove heavy metal ions and phytic acids from water effectively.Furthermore,batch kinetic studies indicated that heavy metal ions adsorbed to NDWJNl could be filted well by both pseudo-first-order and pseudo-second-order adsorption equations,but the intra-particle diffusion played a dominant role in the adsorption of phytic acids.
引用
收藏
页码：105 / 108
页数：4
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