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https://hdl.handle.net/2440/129301
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Type: | Journal article |
Title: | MIL-101(Fe)/g-C₃N₄ for enhanced visible-light-driven photocatalysis toward simultaneous reduction of Cr(VI) and oxidation of bisphenol A in aqueous media |
Other Titles: | MIL-101(Fe)/g-C(3)N(4) for enhanced visible-light-driven photocatalysis toward simultaneous reduction of Cr(VI) and oxidation of bisphenol A in aqueous media |
Author: | Zhao, F. Liu, Y. Hammouda, S.B. Doshi, B. Guijarro, N. Min, X. Tang, C.J. Sillanpää, M. Sivula, K. Wang, S. |
Citation: | Applied Catalysis B: Environmental, 2020; 272:119033-1-119033-14 |
Publisher: | Elsevier |
Issue Date: | 2020 |
ISSN: | 0926-3373 1873-3883 |
Statement of Responsibility: | Feiping Zhao, Yongpeng Liu, Samia Ben Hammouda, Bhairavi Doshi, Néstor Guijarro, Xiaobo Min, Chong-Jian Tang, Mika Sillanpää, Kevin Sivula, Shaobin Wang |
Abstract: | Heterostructured composites with an excellent photocatalytic activity have attracted increasing attention because of their great application in environmental remediation. Herein, a MIL-101(Fe)/g-C₃N₄ heterojunction was synthesized via in-situ growth of MIL-101(Fe) onto g-C₃N₄ surface. The heterojunctions were applied as a bifunctional photocatalyst for simultaneous reduction of Cr(VI) and degradation of bisphenol-A (BPA) under visible light and exhibited an obvious enhancement in photocatalytic performance compared with MIL-101(Fe) or g-C₃N₄. The improved activity could be attributed to the enhanced light absorption and efficient charge carrier separation by forming a direct Z-scheme heterojunction with appropriate band alignment between MIL-101(Fe) and g-C₃N₄. The radical trapping and electron spin resonance showed that photo-generated electrons are responsible for the reduction of Cr(VI) and BPA degradation, following an oxygen-induced pathway. This work provides new insight into the construction of metal-free semiconductor/MOFs heterojunctions as a bifunctional visible-light-driven photocatalyst for efficient and simultaneous treatment of multiple toxic pollutants in water. |
Keywords: | Visible-light photocatalyst; Cr(VI) reduction; MIL-101(Fe)/g-C₃N₄; bisphenol-A degradation; Z-scheme heterojunction |
Rights: | © 2020 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.apcatb.2020.119033 |
Grant ID: | http://purl.org/au-research/grants/arc/DP170104264 |
Published version: | http://dx.doi.org/10.1016/j.apcatb.2020.119033 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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