期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 242, 期 -, 页码 92-99出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2018.09.079
关键词
Photocatalytic hydrogen production; Black TiO2; Nano-heterojunction; Ti3+ self-doping
资金
- Natural Science Foundation of China [51672249, 51603187, 11747136]
- Zhejiang Provincial Natural Science Foundation of China [LQ17F040004]
The Ti3+ self-doping B-TiO2/g-C3N4 hollow core-shell nano-heterojunction is synthesized via the continuous hydrothermal deposition and sculpture-reduction processes. The results of SEM, XRD, TEM, XPS and FT-IR imply that the B-TiO2/g-C3N4 hollow core-shell nanospheres have been prepared successfully. The photocatalytic activity of the B-TiO2/g-C3N4 nano-heterojunctions remarkably exhibits an enhancement of 18 times and 65 times than that of normal TiO2 and g-C3N4, respectively. Further, the photocatalytic process and the mechanism of the photocatalytic hydrogen production enhancement have been studied, which could be ascribed to the O-v-Ti3+ in the B-TiO2 and interface nano-heterojunction, that have been proved by the transient photocurrent, PL, EIS and Mott-Schottky plots.
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