3C-SiC/ZnS heterostructured nanospheres with high photocatalytic activity and enhancement mechanism

Journal Article · Sun Mar 15 00:00:00 EDT 2015 · AIP Advances

DOI:https://doi.org/10.1063/1.4915125· OSTI ID:22454474

Zhang, J. ^[1]; Liu, L. Z.; Yang, L.; Gan, Z. X. ^[1]

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1. Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics and Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China)

3C-SiC/n-type ZnS heterostructured nanospheres synthesized hydrothermally deliver enhanced photocatalytic performance under visible light excitation. The heterostructured catalysts consisting of 3C-SiC and ZnS nanocrystals with a mean size being less than 5 nm exhibit extended light absorption to the visible range. The proper band structure of the 3C-SiC and ZnS nanocrystals and intrinsic electric field induced by the heterojunction promote separation of photoexcited electrons and holes in the ZnS and 3C-SiC nanocrystals resulting in the increased photocatalytic efficiency. The associated mechanism is studied and proposed.

• OSTI ID: 22454474
• Journal Information: AIP Advances, Vol. 5, Issue 3; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
CATALYSTS
EFFICIENCY
ELECTRIC FIELDS
ELECTRONS
EXCITATION
HYDROTHERMAL SYNTHESIS
NANOSTRUCTURES
PHOTOCATALYSIS
SILICON CARBIDES
ZINC SULFIDES