Abstract
The heterostructures of In2O3 nanoparticle loaded on anatase TiO2 nanocube with exposed (001) facet (In2O3/TiO2-nanocube) were fabricated via a two-step hydrothermal process. The crystal phase, morphology, microstructure and photo-absorption property of the products were characterized by FESEM, TEM, XRD, and UV-Vis diffuse reflectance spectroscopy. The results showed that the percentage of exposed (001) facet of TiO2 nanocube was about 33%. In2O3 nanoparticles were successfully decorated on the surface of TiO2 nanocube to form the In2O3/TiO2 heterojunction. Photocurrent measurements confirmed that (001) faceted surface was advantageous for the charge carrier migration and separation in the composites. In comparison with bare TiO2 nanocube and In2O3/TiO2-nanoparticle, the In2O3/TiO2-nanocube heterostructures exhibited enhanced activity toward the degradation of rhodamine B and tetracycline under visible light irradiation, which was attributed to the synergic effect of In2O3/TiO2 heterojunction and the exposure of (001) facet.
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Supported by the National Natural Science Foundation of China(No.21103054), the Natural Science Foundation of Fujian Province of China(Nos.2017J01014, 2012J05024) and the Promotion Program for Young and Middle-aged Teachers in Science and Technology Research of Huaqiao University, China(No.ZQN-PY206).
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Gao, B., Wan, J., Hu, D. et al. Enhanced visible-light-driven photocatalytic performance of In2O3-loaded TiO2 nanocubes with exposed (001) facet. Chem. Res. Chin. Univ. 33, 934–938 (2017). https://doi.org/10.1007/s40242-017-7133-7
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DOI: https://doi.org/10.1007/s40242-017-7133-7