Preparation and characterization of visible light-driven AgCl/PPy photocatalyst

被引：39

作者：

Gu, Shuna ^{[1
]}

Li, Bing ^{[1
]}

Zhao, Chongjun ^{[1
]}

Xu, Yunlong ^{[1
]}

Qian, Xiuzhen ^{[1
]}

Chen, Guorong ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Key Lab Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 18期

基金：

中国国家自然科学基金;

关键词：

AgCl/PPy composites; AgCl; Visible light-driven photocatalysis; Photoreduction; MAGNETIC IONIC LIQUID; AG-AT-AGCL; HIGHLY EFFICIENT; PLASMONIC PHOTOCATALYST; STABLE PHOTOCATALYST; ASSISTED SYNTHESIS; DEGRADATION; IRRADIATION; NANOCOMPOSITES; NANOSTRUCTURES;

D O I：

10.1016/j.jallcom.2011.02.121

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Visible light photoactive AgCl/polypyrrole (PPy) composites were prepared via the reaction between excessive Ag+ and Cl- ions in the presence of PPy. The AgCl/PPy composites were systematically characterized using Fourier transform infrared (FTIR) spectroscopy, Raman spectra, X-ray diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscope (TEM) and Thermal gravity analysis (TGA). It was found that face-centered cubic AgCl nanocrystallite and 0.2 wt% PPy component existed in the composite and spherical AgCl/PPy nanoparticles were in the range of 200-600 nm. The AgCl/PPy composites showed higher visible light-driven photocatalytic activity and stability than that of AgCl. A photoreduction mechanism was postulated for AgCl/PPy photocatalyst on dye methyl orange (MO). The used AgCl/PPy photocatalyst was facilely regenerated by an oxidation process in aqueous FeCl3 solution. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：5677 / 5682

页数：6

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