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Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water

In this study, Mn(2)O(3)/MIL-100(Fe) composite was successfully synthesized by the hydrothermal method and applied for photocatalytic removal of rhodamine B (RhB) in water. The physical and chemical properties of the synthesized materials were characterized by XRD, FTIR, SEM, UV-visible, and BET ana...

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Autores principales: Dung, Nguyen Trung, Hue, Tran Thi, Thao, Vu Dinh, Huy, Nguyen Nhat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038021/
https://www.ncbi.nlm.nih.gov/pubmed/35478589
http://dx.doi.org/10.1039/d1ra03496k
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author Dung, Nguyen Trung
Hue, Tran Thi
Thao, Vu Dinh
Huy, Nguyen Nhat
author_facet Dung, Nguyen Trung
Hue, Tran Thi
Thao, Vu Dinh
Huy, Nguyen Nhat
author_sort Dung, Nguyen Trung
collection PubMed
description In this study, Mn(2)O(3)/MIL-100(Fe) composite was successfully synthesized by the hydrothermal method and applied for photocatalytic removal of rhodamine B (RhB) in water. The physical and chemical properties of the synthesized materials were characterized by XRD, FTIR, SEM, UV-visible, and BET analyses. Experimental results showed a great enhancement in the photocatalytic ability of the Mn(2)O(3)/MIL-100(Fe) composite as compared to individual Mn(2)O(3) or MIL-100(Fe) under visible light and persulfate activation. The affecting factors such as pH, photocatalyst dose, RhB concentration, and Na(2)S(2)O(8) concentration were investigated to find out the best conditions for efficient photocatalysis. By conducting a radical quenching test, all radicals of HO˙, SO(4)˙(−), (1)O(2), and O(2)˙(−) were found to be important in photocatalytic decomposition. The mechanism was proposed for the enhancement of photocatalytic RhB removal via band potential calculation, charge separation, surface redox reaction, and key reactive oxidation species. With its durability, reusability, and high efficiency, the Mn(2)O(3)/MIL-100(Fe) composite emerges as a potential photocatalyst working under visible light for application in wastewater treatment.
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spelling pubmed-90380212022-04-26 Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water Dung, Nguyen Trung Hue, Tran Thi Thao, Vu Dinh Huy, Nguyen Nhat RSC Adv Chemistry In this study, Mn(2)O(3)/MIL-100(Fe) composite was successfully synthesized by the hydrothermal method and applied for photocatalytic removal of rhodamine B (RhB) in water. The physical and chemical properties of the synthesized materials were characterized by XRD, FTIR, SEM, UV-visible, and BET analyses. Experimental results showed a great enhancement in the photocatalytic ability of the Mn(2)O(3)/MIL-100(Fe) composite as compared to individual Mn(2)O(3) or MIL-100(Fe) under visible light and persulfate activation. The affecting factors such as pH, photocatalyst dose, RhB concentration, and Na(2)S(2)O(8) concentration were investigated to find out the best conditions for efficient photocatalysis. By conducting a radical quenching test, all radicals of HO˙, SO(4)˙(−), (1)O(2), and O(2)˙(−) were found to be important in photocatalytic decomposition. The mechanism was proposed for the enhancement of photocatalytic RhB removal via band potential calculation, charge separation, surface redox reaction, and key reactive oxidation species. With its durability, reusability, and high efficiency, the Mn(2)O(3)/MIL-100(Fe) composite emerges as a potential photocatalyst working under visible light for application in wastewater treatment. The Royal Society of Chemistry 2021-08-24 /pmc/articles/PMC9038021/ /pubmed/35478589 http://dx.doi.org/10.1039/d1ra03496k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Dung, Nguyen Trung
Hue, Tran Thi
Thao, Vu Dinh
Huy, Nguyen Nhat
Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water
title Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water
title_full Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water
title_fullStr Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water
title_full_unstemmed Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water
title_short Preparation of Mn(2)O(3)/MIL-100(Fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine B in water
title_sort preparation of mn(2)o(3)/mil-100(fe) composite and its mechanism for enhancing the photocatalytic removal of rhodamine b in water
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038021/
https://www.ncbi.nlm.nih.gov/pubmed/35478589
http://dx.doi.org/10.1039/d1ra03496k
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