Journal
NANOSCALE
Volume 8, Issue 2, Pages 949-958Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr05332c
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Funding
- National Natural Science Foundation of China [21173121, 51372120]
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A series of TiO2/vanadate (Sr10V6O25, Ni3V2O8, Zn2V2O7) heterostructured photocatalysts were prepared by a simple sol-gel method. The theoretical calculations imply the possible energy band match between TiO2 and vanadates. Characterized by XRD, Raman, TEM, EDX, XPS, absorption spectra, PL and time-resolved PL decay curves, it is revealed that the vanadates, which exist on the surface of TiO2, could suppress the recombination of charge carriers, prolong the life-time of photogenerated electrons and provide surface reactive hole sites, improving the photocatalytic activity for photo-reduction of CO2 into CH4.
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