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CdSe/泡沫镍薄膜电极对结晶紫的光电催化降解

钮金芬1,姚秉华1*,姬涛1,陈源清2   

  1. (1.西安理工大学理学院 西安 710048；2.西安理工大学材料科学与工程学院 西安 710048)
  • 收稿日期:2012-03-21 修回日期:2012-04-05 出版日期:2013-02-10 发布日期:2013-02-10
  • 通讯作者: 姚秉华，教授; Tel/Fax:029-82066361; E-mail:bhyao@xaut.edu.cn; 研究方向：纳米光催化技术
  • 基金资助:
    国家自然科学基金（51102195）高等学校博士点学科专项科研基金（20096118110008）陕西省科技厅社发攻关基金（2011K17-03-02）西安市科技创新支撑计划基金（CXY09025(1)）西安理工大学优秀博士学位论文研究基金（108-211005）资助项目

Photoelectrocatalytic Degradation Crystal Violet of Using CdSe/Foam Nickel Thin Film Electrode

NIU Jinfen1, YAO Binghua1*, JI Tao1, CHEN Yuanqing2   

  1. (1.School of Science，Xi′an University of Technology，Xi′an 710048,China;
    2.School of Materials Science and Engineering，Xi′an University of Technology，Xi′an 710048,China)
  • Received:2012-03-21 Revised:2012-04-05 Published:2013-02-10 Online:2013-02-10
  • Contact: YAO Bing-Hua

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1577

被引次数

2

摘要： 采用恒电位电沉积法，以泡沫镍为基底电极，制备了CdSe/泡沫镍薄膜电极，采用扫描电子显微镜、紫外可见漫反射光谱和能谱分析表征了CdSe薄膜的形貌及其组成。 应用该电极研究结晶紫溶液在光电催化降解过程中的COD去除率。 结果表明，以白炽灯（100 W，2只）为光源，采用电沉积30 min所得的CdSe/泡沫镍薄膜电极为工作电极，外加偏压为0.4 V(vs.SCE)，0.01 mol/L NaCl为电解质，光电催化降解浓度为0.001 g/L的结晶紫溶液120 min，COD去除率达到84.3%。

关键词: CdSe/泡沫镍薄膜, 光电催化, 降解, 结晶紫, COD

Abstract: A CdSe/foam nickel thin film electrode was prepared by depositing the CdSe thin film on the foam nickel surface with potentiostatic method. The morphology and composition of CdSe/foam nickel thin film electrode were characterized by SEM， UV-Vis diffusive reflectance spectra(DRS) and energy dispersive spectra(EDS). The chemical oxygen demand(COD) removal efficiency was investigated during the process of photoelectrocatalytic degradation of crystal violet. The results show that the COD removal efficiency of 0.001 g/L crystal violet can reach to 84.3% when using the CdSe/foam nickle thin film electrode as working electrode and catalyst（deposition time is 30 min） under the following conditions:0.01 mol/L supporting electrolyte of NaCl, anodic bias potential of 0.4 V(vs.SCE), irradiation for 120 min with two incandescent lamps(100 W).

Key words: CdSe/ Foam Nickle thin film, photoelectrocatalysis, degradation, crystal violet, COD

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