Application of novel copolymer-TiO2 membranes for some textile dyes adsorptive removal from aqueous solution and photocatalytic decolorization

被引：71

作者：

Essawy, Amr A. ^{[1
,2
]}

Ali, A. El-Hag ^{[3
]}

Abdel-Mottaleb, M. S. A. ^{[1
]}

机构：

[1] Ain Shams Univ, Nano Photochem & Solarchem Lab, Dept Chem, Fac Sci, Cairo 11566, Egypt

[2] Fayoum Univ, Fac Sci, Dept Chem, Al Fayyum, Egypt

[3] Natl Ctr Radiat Res & Technol, Dept Polymer Chem, Cairo, Egypt

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2008年 / 157卷 / 2-3期

关键词：

graft copolymerization; photocatalysis; TiO2; nanoparticles; textile dyes;

D O I：

10.1016/j.jhazmat.2008.01.072

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Novel low density polyethylene-grafted-poly(4-vinylpyridine-co-acrylamide) (LDPE-g-P(4-VP/AAm)) films were prepared by means of gamma-radiation-induced graft copolymerization as support for photocatalytic application. Nanometer-sized TiO2 particles were immobilized to the grafted LDPE via dip coating technique. The efficiency of immobilized photocatalyst is tested on two target pollutants (textile azo dyes: Remazol red RB-133 (RR RB 133) and reactive blue 2 (R82)). The efficient photocatalytic ability as reflected in determined photobleaching rate of both dyes was observed and is comparable to that for the non-supported TiO2 used in a typical slurry photoreactor. The LDPE-g-(4-VP/AAm) copolymers supported TiO2 photocatalyst has the practical advantages of easy separation and removal from the polluted environment. It could be a viable technique for the safe disposal of textile wastewater into the water streams. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：547 / 552

页数：6

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