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Type: Journal article
Title: Graphitic carbon nitride engineered α-Fe₂O₃/rGO heterostructure for visible-light-driven photochemical oxidation of sulfamethoxazole
Other Titles: Graphitic carbon nitride engineered α-Fe2O3/rGO heterostructure for visible-light-driven photochemical oxidation of sulfamethoxazole
Author: Asif, A.H.
Rafique, N.
Hirani, R.A.K.
Shi, L.
Zhang, S.
Wang, S.
Sun, H.
Citation: Chemical Engineering Journal, 2023; 451:138630-138630
Publisher: Elsevier BV
Issue Date: 2023
ISSN: 1385-8947
Statement of
Abdul Hannan Asif, Nasir Rafique, Rajan Arjan Kalyan Hirani, Lei Shi, Shu Zhang, Shaobin Wang, Hongqi Sun
Abstract: Rational design of semiconductor photocatalysts is an effective way to achieve efficient visible-light-driven environmental remediation. Herein, a series of graphitic carbon nitride (g-C3N4) engineered hematite (Fe2O3)/ reduced graphene oxide (rGO) photocatalysts were synthesised and employed in visible-light-driven photo- Fenton-like degradation of sulfamethoxazole (SMX). The exceptional performance of the optimal photocatalyst (0.4-FerGCN-3) was achieved because of the successful structural integration of g-C3N4/Fe2O3/rGO for efficient separation and migration of photoinduced charge carriers (e􀀀 /h+). Photochemical decomposition efficiency was also optimised by analysing the important reaction parameters such as initial catalyst loading, initial H2O2 dosage, pH, and reaction temperature. Detailed studies on the generation of reactive species and degradation intermediates were performed to propose a possible mechanism for SMX degradation. The findings may provide not only a strategy for nanostructure engineering of semiconductor photocatalysts but also insights into the effective remediation of emerging contaminants such as SMX.
Keywords: Carbon nitride; Hematite; Electron mediator; Sulfamethoxazole; Photo-Fenton-like
Rights: © 2022 Elsevier B.V. All rights reserved.
DOI: 10.1016/j.cej.2022.138630
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Appears in Collections:Chemical Engineering publications

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