The Sol–gel method synthesis of Bi4NbO8Cl with (001) facets exposed for high visible-light activity
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Layered perovskite oxyhalide Bi4NbO8Cl with exposed (001) lattice plane has been successfully synthesized by Sol–gel method. The obtained products were characterized by X-ray diffraction, diffuse-reflection spectra, scanning electron surface area from Brunauer–Emmitt–Teller analysis. The photocatalytic activity for the decomposition of Rhodamine-B (RhB) aqueous solution can be significantly improved under visible light irradiation. Based on both high charge speration efficiency originated from the large exposed surface areas of (001) facts and high photocatalytic redox ability generated from band gap expansion, sol gel-Bi4NbO8Cl exhibit higher efficiency over solid state-Bi4NbO8Cl during the degradation of organic dyes under visble light irradiation. What’s more, the Sg-Bi4NbO8Cl photocatalyst still kept higher photocatalytic activity after five cycle measurement.
This work is financially supported by the National Basic Research Program of China (the 973 Program: No. 2013CB632401), the National Natural Science Foundation of China (No. 21333006, 21573135, 11374190,51602179 and 51321091), the Region Special Fund for Collaborative Innovation of Xinjiang (Science and Technology Aid Planning) (No. 2016E02092) and the Opening Project of State Key laboratory of Crystal Material (No. KF1610) and the Scientific Research Program of the Higher Education Institution of Xinjiang (No. XJEDU2018Y048) and the Natural Science Foundation of Xinjiang Uygur Autonomous Region (No. 2016D01C008).
- 30.R. Nakamura, N. Ohashi, A. Imanishi, T. Osawa, Y. Matsumoto, H. Koinuma, Y. Nakato, J. Phys. Chem. B 109, 1649 (2005)Google Scholar
- 34.Y. Wang, P.Y. Zhang, J. Heterocycl. Chem. 192, 1869–1875 (2011)Google Scholar
- 35.L. Ye, J. Chen, L. Tian, J. Liu, T. Peng, K. Deng, L. Zan, Appl. Catal. B 130, 1–7 (2013)Google Scholar