Citation: YANG Xu, LI Xiao-Long, HU Cai-Hua, SHA Zuo-Liang, YANG Li-Bin. Photocatalytic Water Splitting for Hydrogen Evolution over CuO/TiO₂ with Ethylene Glycol as Electron Donor[J]. Chinese Journal of Inorganic Chemistry, ;2015, (11): 2167-2173. doi: 10.11862/CJIC.2015.234 shu

Photocatalytic Water Splitting for Hydrogen Evolution over CuO/TiO₂ with Ethylene Glycol as Electron Donor

1.
1 College of Marine Science and Engineering, Tianjin University of Science & Technology, Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin 300457, China;
2.
2 China National Academy of Nanotechnology & Engineering, Tianjin 300457, China

Corresponding author: YANG Li-Bin,
Received Date: 12 May 2015
Available Online: 9 July 2015
Fund Project: 国家国际科技合作专项项目(No.2013DFG52490) (No.2013DFG52490)天津市应用基础与前沿技术研究计划重点项目(No.14JCZDJC40900)资助。 (No.14JCZDJC40900)

Nanosized TiO₂ with deposited CuO(CuO/TiO₂) photocatalysts were synthesized by impregnation and thermal decomposition method. The photocatalytic water splitting for hydrogen evolution was investigated over CuO/TiO₂ with ethylene glycol as an electron donor. The effect of CuO loading, irradiation time, photocatalyst amount, initial concentration of the ethylene glycol solution on the reaction rate of photocatalytic hydrogen evolution was studied. The possible reaction mechanism was also discussed. The results show that the optimal hydrogen evolution rate reachs 604.5 μmol·h^-1·g^-1 under irradiation of 300 W Xe lamp. The CuO/TiO₂ photocatalyst possesses enhanced optical absorption property, which can help to reduce the electron-hole recombination because the photo-generated electrons in TiO₂ can be readily transferred to CuO. We suggest that ethylene glycol as electron donor may be further oxidized via glycolic acid.
- photocatalysis;water splitting;hydrogen evolution;ethylene glycol;CuO/TiO₂
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Photocatalytic Water Splitting for Hydrogen Evolution over CuO/TiO2 with Ethylene Glycol as Electron Donor

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Photocatalytic Water Splitting for Hydrogen Evolution over CuO/TiO₂ with Ethylene Glycol as Electron Donor