Synthesis of {100} Facet Dominant Anatase TiO2 Nanobelts and the Origin of Facet‐Dependent Photoreactivity |
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| Authors: | Dr Feng Pan Prof Kai Wu Prof Hexing Li Prof Guoqin Xu Prof Wei Chen |
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| Institution: | 1. Education Ministry Key Laboratory of Resource Chemistry, Shanghai Normal University, Shanghai 200234 (China);2. Department of Chemistry, National University of Singapore, 3 science Drive 3, Singapore 117543 (Singapore);3. NUS Environmental Research Institute, National University of Singapore, 5?A Engineering Drive 1, Singapore 117411 (Singapore);4. SPURc, 1 CREATE Way, #15‐01, CREATE Tower, Singapore 138602 (Singapore);5. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China);6. National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Jiang Su 215123 (China) |
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| Abstract: | Sword‐like anatase TiO2 nanobelts exposed with 78 % clean {100} facets were synthesized and the facet‐dependent photoreactivity of anatase TiO2 was investigated. By quantitative comparison with the reference {001} facets, the {100} facets possessed about ten‐times higher active sites density than that on {001} facets, resulting in higher photoreaction efficiency. After the active sites density normalization, the {100} and {001} facets exhibited distinct wavelength‐dependent photocatalytic performance, attributed to the anisotropic electronic structures in TiO2 crystals. |
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| Keywords: | reactive sites nanostructures TiO2 nanobelts photochemistry wavelength‐dependent photoreaction |
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