Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation

Defect-rich photocatalytic materials with excellent charge transfer properties are very popular. Herein, Sm-doped CeO(2) nanorods were annealed in a N(2) atmosphere to obtain the defective Sm-doped CeO(2) photocatalysts (Vo–Sm–CeO(2)). The morphology and structure of Vo–Sm–CeO(2) were systematically...

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Autores principales: Yang, Jindong, Xie, Ning, Zhang, Jingnan, Fan, Wenjie, Huang, Yongchao, Tong, Yexiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7700514/
https://www.ncbi.nlm.nih.gov/pubmed/33233419
http://dx.doi.org/10.3390/nano10112307
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author Yang, Jindong
Xie, Ning
Zhang, Jingnan
Fan, Wenjie
Huang, Yongchao
Tong, Yexiang
author_facet Yang, Jindong
Xie, Ning
Zhang, Jingnan
Fan, Wenjie
Huang, Yongchao
Tong, Yexiang
author_sort Yang, Jindong
collection PubMed
description Defect-rich photocatalytic materials with excellent charge transfer properties are very popular. Herein, Sm-doped CeO(2) nanorods were annealed in a N(2) atmosphere to obtain the defective Sm-doped CeO(2) photocatalysts (Vo–Sm–CeO(2)). The morphology and structure of Vo–Sm–CeO(2) were systematically characterized. The Vo–Sm–CeO(2) nanorods demonstrated an excellent photodegradation performance of methyl blue under visible light irradiation compared to CeO(2) nanorods and Sm–CeO(2). Reactive oxygen species including OH, ·O(2)(−), and h(+) were confirmed to play a pivotal role in the removal of pollutants via electron spin resonance spectroscopy. Doping Sm enhances the conductivity of CeO(2) nanorods, benefiting photogenerated electrons being removed from the surface reactive sites, resulting in the superior performance.
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spelling pubmed-77005142020-11-30 Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation Yang, Jindong Xie, Ning Zhang, Jingnan Fan, Wenjie Huang, Yongchao Tong, Yexiang Nanomaterials (Basel) Article Defect-rich photocatalytic materials with excellent charge transfer properties are very popular. Herein, Sm-doped CeO(2) nanorods were annealed in a N(2) atmosphere to obtain the defective Sm-doped CeO(2) photocatalysts (Vo–Sm–CeO(2)). The morphology and structure of Vo–Sm–CeO(2) were systematically characterized. The Vo–Sm–CeO(2) nanorods demonstrated an excellent photodegradation performance of methyl blue under visible light irradiation compared to CeO(2) nanorods and Sm–CeO(2). Reactive oxygen species including OH, ·O(2)(−), and h(+) were confirmed to play a pivotal role in the removal of pollutants via electron spin resonance spectroscopy. Doping Sm enhances the conductivity of CeO(2) nanorods, benefiting photogenerated electrons being removed from the surface reactive sites, resulting in the superior performance. MDPI 2020-11-21 /pmc/articles/PMC7700514/ /pubmed/33233419 http://dx.doi.org/10.3390/nano10112307 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Jindong
Xie, Ning
Zhang, Jingnan
Fan, Wenjie
Huang, Yongchao
Tong, Yexiang
Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation
title Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation
title_full Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation
title_fullStr Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation
title_full_unstemmed Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation
title_short Defect Engineering Enhances the Charge Separation of CeO(2) Nanorods toward Photocatalytic Methyl Blue Oxidation
title_sort defect engineering enhances the charge separation of ceo(2) nanorods toward photocatalytic methyl blue oxidation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7700514/
https://www.ncbi.nlm.nih.gov/pubmed/33233419
http://dx.doi.org/10.3390/nano10112307
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