Synthesis, characterization and photocatalytic property of AgBr/BiPO4 heterojunction photocatalyst

被引：214

作者：

Xu, Hui ^{[1
]}

Xu, Yuanguo ^{[1
]}

Li, Huaming ^{[1
]}

Xia, Jiexiang ^{[1
]}

Xiong, Jun ^{[1
]}

Yin, Sheng ^{[1
]}

Huang, Chuanjing ^{[2
]}

Wan, Huilin ^{[2
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Sch Environm, Zhenjiang 212013, Peoples R China

[2] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

DALTON TRANSACTIONS | 2012年 / 41卷 / 12期

关键词：

VISIBLE-LIGHT IRRADIATION; COMPOSITE PHOTOCATALYST; DEGRADATION; HETEROSTRUCTURES; PERFORMANCES; BIPO4; DYES; AG;

D O I：

10.1039/c2dt11969b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel heterojunction AgBr/BiPO4 photocatalyst was synthesized with the hydrothermal method. The photocatalyst was characterized by X-Ray powder Diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectrometry (EDS), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectrscopy (XPS) and Diffuse Reflectance Spectroscopy (DRS). The XRD, SEM-EDS, TEM and XPS analyses indicated that the heterojunction structure formed during the process of hydrothermal treatment. The photocatalytic activity of the photocatalysts was evaluated by degradation of methylene blue dye (MB). The results indicated that the AgBr/BiPO4 heterojunction exhibited a much higher photocatalytic activity than the pure BiPO4. The mechanism of the enhancing AgBr/BiPO4 heterojunction's photocatalytic activity was discussed. It was also found that the photocatalytic degradation of MB over AgBr/BiPO4 heterojunction photocatalysts followed the pseudo-first-order reaction model.

引用

页码：3387 / 3394

页数：8

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