Abstract
g-C3N4/NH2-MIL-101(Fe) composites are successfully fabricated by a facile in situ solvothermal method. The as-prepared samples have been characterized by XRD, FTIR, XPS, FESEM, TEM, DRS and PL analysis. Under visible light irradiation, the g-C3N4/NH2-MIL-101(Fe) composite shows higher photocatalytic activities than bare g-C3N4 and NH2-MIL-101(Fe) for Cr(VI) reduction and MO degradation. The improved photocatalytic performances are ascribed to the efficient charge separation and transfer on the interface between g-C3N4 and NH2-MIL-101(Fe). Control experiments show that the pH value is vital for Cr(VI) reduction, and meanwhile, the addition of hole scavengers promotes the photocatalytic reduction significantly. Finally, a possible reaction mechanism had also been investigated in detail.
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Acknowledgements
The work is financially supported by the National Natural Science Foundation of China (No. 21571160), the National Natural Science Foundation of China-Henan Talents Fostering Joint Funds (No. U1504311), the Key Research Projects of the Science and Technology Department of Henan Province (Nos. 172102210544,182102210153 and 182102210619), the Fundamental Research Funds for the Provincial Universities (No. 18KYYWF0109) and the Doctoral Scientific Research Foundation of Zhengzhou University of Light Industry (No. 2015BSJJ044).
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Liu, B., Wu, Y., Han, X. et al. Facile synthesis of g-C3N4/amine-functionalized MIL-101(Fe) composites with efficient photocatalytic activities under visible light irradiation. J Mater Sci: Mater Electron 29, 17591–17601 (2018). https://doi.org/10.1007/s10854-018-9862-x
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DOI: https://doi.org/10.1007/s10854-018-9862-x