期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 19, 期 12, 页码 7689-7695出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2019.16780
关键词
Photocatalysis; Hydrogen Evolution Reaction; In2O3; Cu2O; p-n Heterojunctions
类别
资金
- National Nature Science Foundation of China [21507029, 21501138]
- Natural Science Foundation of Hebei Province [B2016502063]
- Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering [KLIEEE-15-02]
Fabrication of p-n heterojunction materials is an efficient strategy for improving the photocatalytic activity by suppressing the recombination of photogenerated electrons and holes. In this study, a p-n heterojunction consisting of Cu2O and In2O3 was synthesized using the hydrothermal in situ deposition method. The Cu2O/In2O3 hybrid exhibited enhanced performance in the photocatalytic hydrogen evolution reaction and degradation of organic pollutants compared with pure Cu2O and In2O3. The sensitization of In2O3 by Cu2O considerably enhanced the light response of the Cu2O/In2O3 hybrid, and the close contact between In2O3 and Cu2O led to the generation of the p-n heterojunction. The photoelectrochemical properties test proved that the successful fabrication of the p-n heterojunction in the Cu2O/In2O3 hybrid promoted the transfer of photoinduced electrons and holes and inhibited the recombination of photogenerated carriers efficiently. The present strategy provides an efficient approach to improve the performance of photocatalysts through the fabrication of p-n heterojunctions.
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