期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 46, 页码 25716-25724出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b06995
关键词
single-crystal like Bi2WO6; mesoporous; construction mechanism; photocatalytic oxygen evolution; degrading organic pollutants
资金
- Natural Science Foundation of China [21501035, 21271055, 21471040]
- Fundamental Research Funds for the Central Universities [HIT. IBRSEM. A. 201410]
- China Postdoctoral Science Foundation [2015M570298]
- Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [QAK201304]
- Program for Innovation Research of Science in Harbin Institute of Technology (FIRS of HIT) [B201412, B201508]
The porous single-crystal-like micro/nanomaterials exhibited splendid intrinsic performance in photocatalysts, dye-sensitized solar cells, gas sensors, lithium cells, and many other application fields. Here, a novel mesoporous single-crystal-like Bi2WO6 tetragonal architecture was first achieved in the mixed molten salt system. Its crystal construction mechanism originated from the oriented attachment of nanosheet units accompanied by Ostwald ripening process. Additionally, the synergistic effect of mixed alkali metal nitrates and electrostatic attraction caused by internal electric field in crystal played a pivotal role in oriented attachment process of nanosheet units. The obtained sample displayed superior photocatalytic activity of both organic dye degradation and O-2 evolution from water under visible light. We gained an insight into this unique architectures impact on the physical properties, light absorption, photoelectricity, and luminescent decay, etc., that significantly influenced photocatalytic activity.
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