Different combinations of Fe3O4 microsphere, Polypyrrole and silver as core-shell nanocomposites for adsorption and photocatalytic application

被引：20

作者：

Cheng, Yang ^{[1
,2
]}

Gao, Fang ^{[1
]}

An, Liang ^{[1
]}

Li, Xiaomin ^{[1
]}

Wang, Guanghui ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, Coll Chem Engn & Technol, Wuhan 430081, Peoples R China

[2] China Univ Geosci, Minist Educ, Engn Res Ctr Nanogeomat, Wuhan 430074, Peoples R China

来源：

ADVANCED POWDER TECHNOLOGY | 2014年 / 25卷 / 05期

关键词：

Polypyrrole; Ferroferric oxide; Heterostructure; Adsorption; Photocatalysis; DOPED TIO2; HETEROSTRUCTURE NANOCRYSTALS; ANATASE TIO2; DEGRADATION; NANOFIBERS; NANOPARTICLES; COMPOSITES; PARTICLES; INTERFACE; NANOTUBES;

D O I：

10.1016/j.apt.2014.05.013

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Several core-shell nanocomposites composed of Fe3O4 microspheres, Polypyrrole and silver were fabricated here by a series of wet chemical methods. The as-prepared nanocomposites were further used in adsorption and photodegradation of azo dyes. The chemical properties of the products were characterized by a series of techniques and equipment. The adsorption and photocatalytic activities of the obtained core-shell heterostructure were studied by controlled experiments. It was found that Fe3O4@PPy nanostructure exhibited the highest removal abilities towards organic dyes in aqueous solution among the as-prepared samples. The final removal ratio is 86.2% and 80.4% for Methyl Orange and Orange II aqueous solutions, respectively. Deposition of Ag nanoparticles was employed here to investigate the transportation and separation of photo-induced charges on the surface or interface of Fe3O4@PPy under UV illumination. (C) 2014 The Society of Powder Technology Japan. Published by Elsevier B. V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：1600 / 1607

页数：8

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