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A g-C3N4/MIL-101(Fe) heterostructure composite for highly efficient BPA degradation with persulfate under visible light irradiation

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Abstract

Heterostructured composites with outstanding photocatalytic performance have attracted intense attention because of their great potential for use in environmental remediation. Herein, a facile hydrothermal method to obtain heterostructured composites consisting of graphitic-carbon nitride (g-C3N4) and an Fe-based metal organic framework (MIL-101(Fe)) is reported. The as-prepared hybrids exhibited dramatically improved photocatalytic performance for bisphenol A (BPA) degradation in the presence of persulfate (PS) under visible light irradiation. The apparent rate constant, k, for BPA degradation by g-C3N4/MIL-101(Fe) composites with PS was approximately 8.9 times higher than that obtained with bare g-C3N4. The superior performance arises from the heterojunction formed between MIL-101(Fe) and g-C3N4 with a favourable band position and the excellent PS activation ability of MIL-101(Fe), which not only enables the fast electron transfer from g-C3N4 to MIL-101(Fe) but also accelerates PS activation for SO4˙ radical production. This work provides an effective way for constructing novel photocatalytic systems with efficient activity for refractory pollutant removal.

Graphical abstract: A g-C3N4/MIL-101(Fe) heterostructure composite for highly efficient BPA degradation with persulfate under visible light irradiation

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Publication details

The article was received on 15 Aug 2018, accepted on 22 Oct 2018 and first published on 31 Oct 2018


Article type: Paper
DOI: 10.1039/C8TA07915C
Citation: J. Mater. Chem. A, 2018, Advance Article
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    A g-C3N4/MIL-101(Fe) heterostructure composite for highly efficient BPA degradation with persulfate under visible light irradiation

    Y. Gong, B. Yang, H. Zhang and X. Zhao, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA07915C

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