物理化学学报 >> 2009, Vol. 25 >> Issue (08): 1703-1707.doi: 10.3866/PKU.WHXB20090818

研究论文 上一篇    下一篇

光催化剂Bi1-xGdxVO4的制备和表征及其光催化分解水

王其召, 蒋丽, 刘恢, 袁坚, 陈铭夏, 施建伟, 上官文峰   

  1. 上海交通大学燃烧与环境技术研究中心, 上海 200240|西北师范大学化学化工学院, 兰州 730070
  • 收稿日期:2009-02-07 修回日期:2009-04-23 发布日期:2009-07-16
  • 通讯作者: 上官文峰 E-mail:shangguan@sjtu.edu.cn

Preparation and Characterization of Bi1-xGdxVO4 Photocatalyst and Its Application toWater Splitting

WANG Qi-Zhao, JIANG Li, LIU Hui, YUAN Jian, CHEN Ming-Xia, SHI Jian-Wei, SHANGGUAN Wen-Feng   

  1. Research Center for Combustion and Environment Technology, Shanghai Jiaotong University, Shanghai 200240, P. R. China|College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
  • Received:2009-02-07 Revised:2009-04-23 Published:2009-07-16
  • Contact: SHANGGUAN Wen-Feng E-mail:shangguan@sjtu.edu.cn

摘要:

通过高温固相法合成了不同组分的光催化剂Bi1-xGdxVO4(x=0, 0.1, 0.2, 0.3, 0.5, 0.7, 0.9, 1.0), 并用X射线衍射(XRD)、紫外-可见漫反射光谱(DRS)、比表面积分析(BET)、扫描电子显微镜(SEM)对催化剂Bi1-xGdxVO4进行了表征和分析. XRD结果表明, 在Bi1-xGdxVO4中存在两种结构, 当0.3≤x≤1.0时, Bi1-xGdxVO4为四方晶系硅酸锆型结构; 当x=0时, 为单斜晶系白钨矿结构BiVO4; 当0

关键词: 光催化, Bi1-xGdxVO4, 可见光, 水的分解, 固溶体

Abstract:

Bi1-xGdxVO4(x=0, 0.1, 0.2, 0.3, 0.5, 0.7, 0.9, 1.0) solid oxide solutions were synthesized by a solid state reaction at high temperature and characterized by X-ray diffraction (XRD), UV-Vis diffuse reflectance spectroscopy (DRS), BET surface area and scanning electron microscopy (SEM). XRD analysis of the Bi1-xGdxVO4 system showed the existence of two structures. For 0.3≤x≤1.0, the structure was of zircon-tetragonal type while the structure was scheelite-monoclinic when x=0. For 0.1

Key words: Photocatalysis, Bi1-xGdxVO4, Visible, Water splitting, Solid solution

MSC2000: 

  • O643