Improved propane photooxidation activities upon nano Cu 2 O/TiO 2 heterojunction semiconductors at room temperature

Nano Cu 2 O/TiO 2 heterojunctions with different weight percentage of Cu 2 O were fabricated by a facile impregnating method for propane oxidation at room temperature. The results indicate that the as-formed Cu 2 O/TiO 2 heterojunctions can remarkably improve the propane photooxidation activity. Esp...

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Published in:RSC advances 2015, Vol.5 (28), p.22038-22043
Main Authors: Wang, Dan, Pan, Xiaoyang, Wang, Guangtao, Yi, Zhiguo
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Language:English
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description Nano Cu 2 O/TiO 2 heterojunctions with different weight percentage of Cu 2 O were fabricated by a facile impregnating method for propane oxidation at room temperature. The results indicate that the as-formed Cu 2 O/TiO 2 heterojunctions can remarkably improve the propane photooxidation activity. Especially, for the 0.1 wt% Cu 2 O decorated TiO 2 junctions, the activity was triple of that of the commercial P25. Moreover, the stability of Cu 2 O was significantly improved during the HC photooxidation. A direct Z scheme electrons and holes transfer mode was suggested to account for the improved activity as well as stability of the junctions. This study may provide a new way to improve photocatalytic activities by utilizing cheap and less stable materials.
doi_str_mv 10.1039/C4RA15215H
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title Improved propane photooxidation activities upon nano Cu 2 O/TiO 2 heterojunction semiconductors at room temperature
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