| A Novel Composite Electrode of Photocatalyst—TiO2／C Loading on the Surface of the Air （Oxygen） Electrode |
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| 引用本文： | WANG，Yu－Ling CAI，Nai－Cai 等.A Novel Composite Electrode of Photocatalyst—TiO2／C Loading on the Surface of the Air （Oxygen） Electrode[J].中国化学,2002,20(4):304-309. |
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| 作者姓名： | WANG，Yu－Ling CAI，Nai－Cai |
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| 作者单位： | CollegeofChemistryandMolecularScience,WuhanUniversity,Wuhan,Hubei430072,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No.2 0 0 710 2 6 ) |
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| 摘 要： | The methods for preparing the H2O2 generating air (oxygen) electrode and the composite electrode of photocatalyst-TiO2/C loading on the surface of the air (oxygen) electrode were introduced.In the case of the composite electrode,the current efficiency of electro-generated H2O2 is higher than 80%(J≤15mA/cm^2).The degradation of aniline was used as an example to measure the influence of the composite electrode and compared with the system in which the air (oxygen) electrode and the photocatalyst-TiO2 were sqparated.The results confirmed that the composite electrode played an active role on accelerating the degradation rate of aniline.According to the measurement of the polarization curves of composite electrode and TiO2 photo anode,and of the adsorbing amount of aniline on the surface of the composite electrode,the principle of descending the recombination reta of photo-generated electron and hole and of enhancing the oxidation rate of organic molecule was described.The mechanism about the degradation of aniline was also discussed.
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| 关 键 词： | 合成电极 二氧化钛 碳 空气电极 光催化剂 电极表面 氧电极 |
A Novel Composite Electrode of Photocatalyst-TiO_2/C Loading on the Surface of the Air (Oxygen) Electrode |
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| WANG,Yu-Ling CAI,Nai-Cai WANG,Ya-Ping ZHONG,Jia-ShengCollege of Chemistry and Molecular Science,Wuhan University,Wuhan,Hubei ,China.A Novel Composite Electrode of Photocatalyst-TiO_2/C Loading on the Surface of the Air (Oxygen) Electrode[J].Chinese Journal of Chemistry,2002,20(4):304-309. |
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| Authors: | WANG Yu-Ling CAI Nai-Cai WANG Ya-Ping ZHONG Jia-ShengCollege of Chemistry and Molecular Science Wuhan University Wuhan Hubei China |
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| Institution: | WANG,Yu-Ling CAI,Nai-Cai WANG,Ya-Ping ZHONG,Jia-ShengCollege of Chemistry and Molecular Science,Wuhan University,Wuhan,Hubei 430072,China |
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| Abstract: | The methods for preparing the H2O2 generating air (oxygen) electrode and the composite electrode of photocatalyst‐TiO2/C loading on the surface of the air (oxygen) electrode were introduced. In the case of the composite electrode, the current efficiency of electro‐generated H2O2 is higher than 80% (J ≤ 15 mA/cm2). The degradation of aniline was used as an example to measure the influence of the composite electrode and compared with the system in which the air (oxygen) electrode and the photocatalyst‐TiO2 were separated. The results confirmed that the composite electrode played an active role on accelerating the degradation rate of aniline. According to the measurement of the polarization curves of composite electrode and TiO2 photo anode, and of the adsorbing amount of aniline on the surface of the composite electrode, the principle of descending the recombination rate of photo‐generated electron and hole and of enhancing the oxidation rate of organic molecule was described. The mechanism about the degradation of aniline was also discussed. |
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| Keywords: | air (oxygen) electrode photocatalyst-TiO 2 degradation aniline |
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