Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 45, Pages 24987-24992Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b07318
Keywords
hydrogenation; TiO2(B); heterophase junction; photocatalytic; water splitting
Funding
- National Natural Science Foundation of China [U1232118, U1332102, 21476159]
- 973 program [2014CB932403]
- Natural Science Foundation of Tianjin, PR China [15JCZDJC37400]
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Hydrogenation of semiconductors is an efficient way to increase their photocatalytic activity by forming disorder-engineered structures. Herein, we report a facile hydrogenation process of TiO2(B) nanobelts to in situ generate TiO2(B)-anatase heterophase junction with a disordered surface shell. The catalyst exhibits an excellent performance for photocatalytic hydrogen evolution under the simulated solar light irradiation (similar to 580 mu mol h(-1), 0.02 g photocatalyst). The atomically well-matched heterophase junction, along with the disorder-engineered surface shell, promotes the separation of electron-hole and inhibits their recombination. This strategy can be further employed to design other disorder-engineered composite photocatalysts for solar energy utilization.
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