大连工业大学学报2011，Vol.30Issue(4)：263-266,4.
纳米钒酸铋的水热合成及其可见光光催化降解罗丹明B
Hydrothermal preparation of BiVO4 and its photocatalytic degradation of RhB under visible light
摘要
Abstract
Nanometer BiVO4 particles were synthesized by hydrothermal method using Bi(NO3)3 · 5H2O and NH4VO3 as raw materials. The BiVO4 was characterized by UV-vis DRS, XRD. The XRD pattern revealed that the BiVO4 shows monoclinic scheelite structure. UV-visible diffuse reflection spectra (DRS) indicated that the band gap of BiVO4 was 2.46 eV. The optimum condition is as follows;the original concentration of RhB, 10 mg/L; catalyst quantity, 3 g/L. The removal rate of RhB with BiVO4 in photocatalytic process for 5 h was 92. 2 % under visible light. The reaction followed the preudo-first level kinetics model and the reaction rate constant was 0. 497 h-1.关键词
钒酸铋/水热法/可见光/罗丹明BKey words
BiVO4/hydrothermal method/visible light/RhB分类
资源环境引用本文复制引用
龚焱,张秀芳,董晓丽,马春..纳米钒酸铋的水热合成及其可见光光催化降解罗丹明B[J].大连工业大学学报,2011,30(4):263-266,4.基金项目
辽宁省博士科研启动基金(20101005) （20101005）
辽宁省教育厅科学研究计划资助项目(05L078) （05L078）
大连市科技计划项目(2006E21SF084). （2006E21SF084）
