Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7706569 | International Journal of Hydrogen Energy | 2018 | 9 Pages |
Abstract
TiO2 with exposed (001) facets were composited with CdS nanorods to construct 2D/1D heterojunction. As comparison, P25 with mainly exposed (101) facets were employed to combine with CdS nanorods. The 2D/1D heterojunction of TiO2 nanosheets and CdS nanorod displayed 3.7 times higher hydrogen generation than that of P25/CdS composites. The results indicated that TiO2 with exposed (001) facets were favorable for enhancing the photocatalytic activity of CdS via optimizing the heterojunction between TiO2 and CdS. Photoluminescence and photoelectrochemical characteristics results demonstrated that the 2D-TiO2/1D-CdS heterojunction exhibits higher separation efficiency of photoinduced carriers and superior electron transfer ability. This work exemplifies that heterojunction modification is an effective strategy to improve the efficiency of the photocatalyst composites.
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Authors
Junmei Wang, Zhijian Wang, Peng Qu, Qinchao Xu, Jianfeng Zheng, Suping Jia, Jiazang Chen, Zhenping Zhu,