工业水处理 ›› 2012, Vol. 32 ›› Issue (4): 21-24. doi: 10.11894/1005-829x.2012.32(04).21

• 试验研究 • 上一篇    下一篇

斜板液膜反应器光电催化降解罗丹明B

徐云兰1, 钟登杰1, 贾金平2   

  1. 1. 重庆理工大学化学化工学院, 重庆 400054;
    2. 上海交通大学环境科学与工程学院, 上海 200240
  • 收稿日期:2012-02-05 出版日期:2012-04-20 发布日期:2012-04-13
  • 作者简介:徐云兰(1971- ),2009 年毕业于上海交通大学,博士,副教授。主要研究方向:水处理技术、半导体光催化。电话:13983165192,E-mail:xuyunlan@cqut.edu.cn。
  • 基金资助:

    国家自然科学基金面上项目(21077140); 国家自然科学基金重点项目(20937003); 重庆市教委科学技术研究项目(KJ100813); 重庆市科委自然科学基金项目(cstc2011jjA0835); 环境模拟与污染控制国家重点联合实验室开放基金(10K12ESPCT)

Photoelectrocatalytic degradation of Rhodamine B with the slant-placed TiO2/Ti anode thin-film reactor

Xu Yunlan1, Zhong Dengjie1, Jia Jinping2   

  1. 1. School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China;
    2. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:2012-02-05 Online:2012-04-20 Published:2012-04-13

摘要:

采用溶胶-凝胶法制备了TiO2/Ti电极,进行光电催化降解罗丹明B(RhB)试验。确定了最佳降解条件:外加偏压+0.8 V、废水流量7.7 L/h、初始pH=2.5和电解质质量浓度2.0 g/L。在最佳条件下,处理20 mg/L的RhB溶液1.5 h,脱色率和TOC去除率分别达到97.3%和76.2%。结果表明,由于同时强化了激发光源的利用率和溶液的传质效率,斜板液膜反应器可高效降解RhB。

关键词: 斜板液膜反应器, TiO2/Ti电极, 光电催化, 罗丹明B

Abstract:

TiO2/Ti electrode has been prepared by sol-gel process for carrying on photoelectrocatalytic degradation of Rhodamine B tests. The optimum degradation conditions are decided as follows: bias potential +0.8 V,circulating flux 7.7 L/h,initial pH=2.5 and supporting salt mass concentration 2.0 g/L. Under these conditions,treating 20 mg/L of RhB solution for 1.5 h,the decolorization rate and TOC removing rate reach 97.3% and 76.2% respectively. The results show that RhB can be effectively degraded by the slant-placed TiO2/Ti anode thin-film reactor,because the usability of excitation light sources and mass transfer effectiveness are reinforced at the same time.

Key words: slant-placed TiO2/Ti anode thin-film reactor, TiO2/Ti electrode, photoelectrocatalysis, Rhodamine B

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