Visible Light Photocatalytic Properties of Bi2O3 Modified BiPO4 Nanorod Composite Photocatalyst

被引:0
作者
Du Quan-Chao [1 ,2 ]
Lu Gong-Xuan [2 ]
机构
[1] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
关键词
BiPO4; nanorod; Bi2O3; modification; photocatalysis; controllable morphology; METHYL-ORANGE; DEGRADATION; PHOTODEGRADATION; NANOPARTICLES; POWDER;
D O I
暂无
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
BiPO4 nanorod composite photocatalyst with controllable morphology was synthesized by using Bi2S3 nanorods as a template. This composite catalyst exhibited excellent photocatalytic performance for methylene blue (MB) degradation under visible light irradiation. UV-Vis diffuse reflectance spectroscopy results showed that the Bi2O3 modified BiPO4 catalyst had higher visible light absorption. X-ray diffraction and transmission electron microscopy results indicated that as-prepared BiPO4 catalyst was nanorods with diameter of about 30 nm and length of 200-500 nm. Surface modification with small amount Bi2O3 could significantly promote visible light degradation efficiency of MB, which was about 1.7 times higher than that of the unmodified BiPO4 catalyst. Photocurrent and N-2 adsorption experiments showed that the photocurrent and BET specific surface area increased significantly after surface modification. Bi2O3 modification not only enhanced visible light absorption ability of catalyst but also presented a center for the enhancement of electron transfer. The results showed BiPO4 catalyst with Bi2O3 modification was a high activity photocatalytic material.
引用
收藏
页码:1204 / 1210
页数:7
相关论文
共 26 条
[21]   Visible-Light Photocatalytic Degradation of BiTaO4 Photocatalyst and Mechanism of Photocorrosion Suppression [J].
Shi, Rui ;
Lin, Jie ;
Wang, Yajun ;
Xu, Jing ;
Zhu, Yongfa .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (14) :6472-6477
[22]   Catalysis with TiO2/gold nanocomposites.: Effect of metal particle size on the Fermi level equilibration [J].
Subramanian, V ;
Wolf, EE ;
Kamat, PV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (15) :4943-4950
[23]  
[谢艳招 Xie Yanzhao], 2012, [分子催化, Journal of Molecular Catalysis(China)], V26, P449
[24]   Synthesis, characterization and photocatalytic property of AgBr/BiPO4 heterojunction photocatalyst [J].
Xu, Hui ;
Xu, Yuanguo ;
Li, Huaming ;
Xia, Jiexiang ;
Xiong, Jun ;
Yin, Sheng ;
Huang, Chuanjing ;
Wan, Huilin .
DALTON TRANSACTIONS, 2012, 41 (12) :3387-3394
[25]  
You XF, 2006, CHINESE J CATAL, V27, P270
[26]   Photodegradation of dye pollutants catalyzed by γ-Bi2MoO6 nanoplate under visible light irradiation [J].
Zhao, Xu ;
Xu, Tongguang ;
Yao, Wenqing ;
Zhu, Yongfa .
APPLIED SURFACE SCIENCE, 2009, 255 (18) :8036-8040