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Citation: CHEN Zhidong, YUAN Jia, NI Junhua, GAN Congjiang, WANG Wenchang, KONG Yong. Fabrication and Photoelectrocatalysis Performance of Expanded Graphite-Supported Anatase Nano Titanium Dioxide[J]. Chinese Journal of Applied Chemistry, ;2011, 28(1): 39-43. doi: 10.3724/SP.J.1095.2011.00137 shu

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

1.
Faculty of Chemistry and Chemical Engineering, Changzhou Univeristy, Changzhou 213164

Corresponding author: KONG Yong,
Received Date: 8 March 2010
Available Online: 13 July 2010
Fund Project: 国家自然科学基金(20805021) (20805021)江苏省自然科学基金(BK2008542,BK2009537) (BK2008542,BK2009537)常州市科技计划(CQ20100004) (CQ20100004)常州市科技计划资助项目(CQ20100004) (CQ20100004)

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.
- titanium dioxide,
- expanded graphite,
- photoelectrocatalysis,
- textile waste water
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