Journal
CERAMICS INTERNATIONAL
Volume 44, Issue 11, Pages 12555-12563Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.04.052
Keywords
TiO2; CdSe; Controlled synthesis; Porous catalyst; Hydrogen evolution
Categories
Funding
- National Natural Science Foundation of China [21273010]
- Program for Natural Science of Henan Province [162300410004]
- Outstanding Youth Innovation Talent of Henan Province [14410051000]
- Henan Province Key Laboratory of New Opto-electronic Functional Materials Open Project [aynu201701]
- National Research Foundation of Korea grant - Korean government [NRF-2014R1A2A1A11052965]
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Herein, we report a successful synthesis of porous TiO2 monoliths decorated with unique nanoplate, nanoprism, and nanopyramid-shaped CdSe particles through a mild selenylation of CdO embedded inside porous TiO2 monoliths via a hydrothermal method in a very controlled manner. Compared with pure TiO2, as-synthesized CdSe/TiO2 photocatalyst not only enhances light absorption but also leads to a highly efficient charge-carrier separation. Particularly, the nanoplate-shaped 7% CdSe/TiO2 photocatalyst (molar percentages of CdSe to TiO2 is 7:100) exhibits an exceptional hydrogen evolution rate up to 3650 mu mol h(-1) g(-1) without resorting to any noble-metal co-catalysts under visible-light irradiation owing to synergistic effects envisaged by a rational material design. Our results may provide a useful strategy to develop a highly-efficient visible-light-driven hydrogen production system via water splitting.
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