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Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)

Debromination is a primary and critical procedure in the treatment of polybrominated diphenyl ethers (PBDEs) in the environment. Herein, oxygen vacancy-enriched Bi(2)MoO(6) is firstly applied in the photoreduction debromination of PBDEs under visible light illumination. The introduction of oxygen va...

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Detalles Bibliográficos
Autores principales: Li, Qin, Jin, Xueqing, Yang, Meiying, Shen, Qi, Sun, Chunyan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9100371/
https://www.ncbi.nlm.nih.gov/pubmed/35702225
http://dx.doi.org/10.1039/d2ra01762h
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author Li, Qin
Jin, Xueqing
Yang, Meiying
Shen, Qi
Sun, Chunyan
author_facet Li, Qin
Jin, Xueqing
Yang, Meiying
Shen, Qi
Sun, Chunyan
author_sort Li, Qin
collection PubMed
description Debromination is a primary and critical procedure in the treatment of polybrominated diphenyl ethers (PBDEs) in the environment. Herein, oxygen vacancy-enriched Bi(2)MoO(6) is firstly applied in the photoreduction debromination of PBDEs under visible light illumination. The introduction of oxygen vacancies not only promotes the red-shift of the light absorption band by Bi(2)MoO(6), but also activates the C–Br bond through the formation of Br–O halogen bonds, thus realizing efficient visible light reduction of decabromodiphenyl ether (BDE209). The activation adsorption mode inferred by tracking analysis of the degradation process shows that the meta-position adsorption mode is the main adsorption configuration during the activation process, while the ortho-position adsorption mode is the most difficult. Thence, the oxygen vacancy-dominated photocatalytic BDE209 process is a position-selective multi-electron reduction process. The study shows that oxygen vacancy assisted C–Br activation is an excellent strategy for photocatalytic treatment of halogenated persistent organic pollutants.
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spelling pubmed-91003712022-06-13 Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6) Li, Qin Jin, Xueqing Yang, Meiying Shen, Qi Sun, Chunyan RSC Adv Chemistry Debromination is a primary and critical procedure in the treatment of polybrominated diphenyl ethers (PBDEs) in the environment. Herein, oxygen vacancy-enriched Bi(2)MoO(6) is firstly applied in the photoreduction debromination of PBDEs under visible light illumination. The introduction of oxygen vacancies not only promotes the red-shift of the light absorption band by Bi(2)MoO(6), but also activates the C–Br bond through the formation of Br–O halogen bonds, thus realizing efficient visible light reduction of decabromodiphenyl ether (BDE209). The activation adsorption mode inferred by tracking analysis of the degradation process shows that the meta-position adsorption mode is the main adsorption configuration during the activation process, while the ortho-position adsorption mode is the most difficult. Thence, the oxygen vacancy-dominated photocatalytic BDE209 process is a position-selective multi-electron reduction process. The study shows that oxygen vacancy assisted C–Br activation is an excellent strategy for photocatalytic treatment of halogenated persistent organic pollutants. The Royal Society of Chemistry 2022-05-13 /pmc/articles/PMC9100371/ /pubmed/35702225 http://dx.doi.org/10.1039/d2ra01762h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Li, Qin
Jin, Xueqing
Yang, Meiying
Shen, Qi
Sun, Chunyan
Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)
title Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)
title_full Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)
title_fullStr Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)
title_full_unstemmed Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)
title_short Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi(2)MoO(6)
title_sort enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched bi(2)moo(6)
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9100371/
https://www.ncbi.nlm.nih.gov/pubmed/35702225
http://dx.doi.org/10.1039/d2ra01762h
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