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Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System

The environmentally benign Fe(2)(MoO(4))(3) plays a crucial role in the transformation of organic contaminants, either through catalytically decomposing oxidants or through directly oxidizing the target pollutants. Because of their dual roles and the complex surface chemical reactions, the mechanism...

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Autores principales: Qiu, Yang, Yang, Chuanxi, Zhou, Huimin, Zang, Jinqiu, Fan, Yuqi, Dang, Feng, Cui, Guanwei, Wang, Weiliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821920/
https://www.ncbi.nlm.nih.gov/pubmed/36615527
http://dx.doi.org/10.3390/molecules28010333
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author Qiu, Yang
Yang, Chuanxi
Zhou, Huimin
Zang, Jinqiu
Fan, Yuqi
Dang, Feng
Cui, Guanwei
Wang, Weiliang
author_facet Qiu, Yang
Yang, Chuanxi
Zhou, Huimin
Zang, Jinqiu
Fan, Yuqi
Dang, Feng
Cui, Guanwei
Wang, Weiliang
author_sort Qiu, Yang
collection PubMed
description The environmentally benign Fe(2)(MoO(4))(3) plays a crucial role in the transformation of organic contaminants, either through catalytically decomposing oxidants or through directly oxidizing the target pollutants. Because of their dual roles and the complex surface chemical reactions, the mechanism involved in Fe(2)(MoO(4))(3)-catalyzed PDS activation processes remains obscure. In this study, Fe(2)(MoO(4))(3) was prepared via the hydrothermal and calcine method, and photoFenton degradation of methyl orange (MO) was used to evaluate the catalytic performance of Fe(2)(MoO(4))(3). Fe(2)(MoO(4))(3) catalysts with abundant surface oxygen vacancies were used to construct a synergistic system involving a photocatalyst and PDS activation. The oxygen vacancies and Fe(2+)/Fe(3+) shuttle played key roles in the novel pathways for generation of •O(2)(−), h(+), and (1)O(2) in the UV–Vis + PDS + FMO-6 photoFenton system. This study advances the fundamental understanding of the underlying mechanism involved in the transition metal oxide-catalyzed PDS activation processes.
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spelling pubmed-98219202023-01-07 Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System Qiu, Yang Yang, Chuanxi Zhou, Huimin Zang, Jinqiu Fan, Yuqi Dang, Feng Cui, Guanwei Wang, Weiliang Molecules Article The environmentally benign Fe(2)(MoO(4))(3) plays a crucial role in the transformation of organic contaminants, either through catalytically decomposing oxidants or through directly oxidizing the target pollutants. Because of their dual roles and the complex surface chemical reactions, the mechanism involved in Fe(2)(MoO(4))(3)-catalyzed PDS activation processes remains obscure. In this study, Fe(2)(MoO(4))(3) was prepared via the hydrothermal and calcine method, and photoFenton degradation of methyl orange (MO) was used to evaluate the catalytic performance of Fe(2)(MoO(4))(3). Fe(2)(MoO(4))(3) catalysts with abundant surface oxygen vacancies were used to construct a synergistic system involving a photocatalyst and PDS activation. The oxygen vacancies and Fe(2+)/Fe(3+) shuttle played key roles in the novel pathways for generation of •O(2)(−), h(+), and (1)O(2) in the UV–Vis + PDS + FMO-6 photoFenton system. This study advances the fundamental understanding of the underlying mechanism involved in the transition metal oxide-catalyzed PDS activation processes. MDPI 2022-12-31 /pmc/articles/PMC9821920/ /pubmed/36615527 http://dx.doi.org/10.3390/molecules28010333 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Qiu, Yang
Yang, Chuanxi
Zhou, Huimin
Zang, Jinqiu
Fan, Yuqi
Dang, Feng
Cui, Guanwei
Wang, Weiliang
Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System
title Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System
title_full Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System
title_fullStr Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System
title_full_unstemmed Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System
title_short Enriched Surface Oxygen Vacancies of Fe(2)(MoO(4))(3) Catalysts for a PDS-Activated photoFenton System
title_sort enriched surface oxygen vacancies of fe(2)(moo(4))(3) catalysts for a pds-activated photofenton system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821920/
https://www.ncbi.nlm.nih.gov/pubmed/36615527
http://dx.doi.org/10.3390/molecules28010333
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