中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (01): 39-43.DOI: 10.3724/SP.J.1095.2010.00137

• 研究论文 • 上一篇    下一篇

膨胀石墨负载锐钛矿型纳米TiO2的制备及光电催化性能

陈智栋,袁甲,倪珺华,甘从江,王文昌,孔泳*   

  1. (常州大学化学化工学院 常州 213164)
  • 收稿日期:2010-03-08 修回日期:2010-04-19 出版日期:2011-01-10 发布日期:2011-01-10
  • 通讯作者: 孔泳，副教授; Tel/Fax: 0519-86330239; E-mail:yzkongyong@yahoo.com.cn; 研究方向：电化学
  • 作者简介:
  • 基金资助:
    国家自然科学基金(20805021)江苏省自然科学基金(BK2008542，BK2009537)及常州市科技计划（CQ20100004)及2010年常州市科技计划资助项目

Fabrication and Photoelectrocatalysis Performance of Expanded GraphiteSupported Anatase Nano Titanium Dioxide

CHEN Zhi-Dong, YUAN Jia, NI Jun-Hua, GAN Cong-Jiang, WANG Wen-Chang, KONG Yong*   

  1. (Faculty of Chemistry and Chemical Engineering,Changzhou Univeristy,Changzhou 213164)
  • Received:2010-03-08 Revised:2010-04-19 Published:2011-01-10 Online:2011-01-10

PDF

1656

被引次数

3

摘要：

采用等体积浸渍法制备了膨胀石墨负载锐钛矿型纳米TiO2。 用X射线衍射（XRD）表征了纳米TiO2的晶型，扫描电子显微镜（SEM）研究了膨胀石墨负载纳米TiO2前后的表面形貌。 将该复合材料填充到自制的新型光电反应器中，考察了光催化、电催化及光电催化不同降解方法对主要成分是活性蓝的印染废水降解的影响，结果表明,该复合材料对印染废水具有良好的光电催化效应，以0.1 mol/L NaCl作为支持电解质经过光电协同处理后，脱色率达到99.3%，化学需氧量（COD）降低约93.1%，其效率远高于单纯光催化或者电催化的结果。

关键词: 二氧化钛, 膨胀石墨, 光电催化, 印染废水

Abstract:

Anatase TiO2 coatings on highly porous expanded graphite(EG) were prepared by equal volume impregnation method. The morphology of EG with and without TiO2 coatings were studied by scanning electron microscope. The XRD pattern of TiO2 power was also studied. The composite material was filled into the novel homemade photoelectric reactor to degrade textile waste water containing reactive blue. The effects of different degradation technologies, such as photocatalysis, electro-oxidation, and photoelectrocatalysis were investigated and compared. The results show that chemical oxygen demand(COD) removal and color removal efficiency of the waste water by photoelectrocatalysis using 0.1 mol/L NaCl as supporting electrolyte is 93.1% and 99.3%, respectively, which are much higher than those obtained by using only photocatalysis or electrocatalysis.

Key words: titanium dioxide, expanded graphite, photoelectrocatalysis, textile wastewater

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