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Citation: FAN Cai-Mei, ZHANG Xiao-Yan, WANG Yun-Fang, HAO Xiao-Gang, SUN Yan-Ping. Properties of Oxygen Electrodes in Photoelectrocatalytic Degradation of Phenol in Water[J]. Chinese Journal of Applied Chemistry, ;2007, 24(4): 388-391. shu

Properties of Oxygen Electrodes in Photoelectrocatalytic Degradation of Phenol in Water

1.
Institute of Clean Technique for Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024

Corresponding author: FAN Cai-Mei,
Received Date: 23 May 2006
Available Online: 30 August 2006
Fund Project: 国家自然科学基金(20476070) (20476070)山西省自然科学基金(20041020)资助项目 (20041020)

Oxygen electrodes were made by means of the hot pressure method with acetylene black,active carbon,graphite and Mn(NO₃)₂ as row materials,and they were used in photoelectrocatalytic degradation of phenol in water.The electrodes were characterized by BET,XRD and SEM.The effects of the conditions of preparing the oxygen electrode on the degradation rate of phenol were investigated. The effects of different cathodes of Cu,Ni and oxygen electrodes on the degradation of phenol were compared.The removal of phenol in the different processes including adsorption,photocatalysis,electrocatalysis and photoelectrocatalysis were also compared under the same experimental conditions.The results show that the specific surface area of the oxygen electrode was large,and the main crystalline of this electrode was graphite and Mn₃O₄.The materials and pores were well-distributed on the surface and inside of the oxygen electrode.The favorite conditions of preparing oxygen cathodes are that the mass ratio of graphite:acetylene black:activated carbon is 1:1:1,the sintering temperature of the cathode is 400℃ and the thickness of the cathode is 1 mm.The oxygen electrode displays a good synergy with the photoanode in the photoelectrocatalytic degradation of phenol and enhanced the mineralization of phenol in water.
- oxygen electrode,
- photoelectrocatalysis,
- phenol
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