Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone

Co(3)O(4) is an environmental catalyst that can effectively decompose ozone, but is strongly affected by water vapor. In this study, Co(3)O(4)@SiO(2) catalysts with a core-shell-like structure were synthesized following the hydrothermal method. At 60% relative humidity and a space velocity of 720,00...

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Autores principales: Ding, Jingya, Cheng, Feng, Meng, Zhen, Cao, Yan, Han, Fennv, Chen, Dongbin, Cao, Mingxiang, Zhang, Guolin, Kang, Jiahao, Xu, Shuxiang, Xu, Qi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8695612/
https://www.ncbi.nlm.nih.gov/pubmed/34957055
http://dx.doi.org/10.3389/fchem.2021.803464
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author Ding, Jingya
Cheng, Feng
Meng, Zhen
Cao, Yan
Han, Fennv
Chen, Dongbin
Cao, Mingxiang
Zhang, Guolin
Kang, Jiahao
Xu, Shuxiang
Xu, Qi
author_facet Ding, Jingya
Cheng, Feng
Meng, Zhen
Cao, Yan
Han, Fennv
Chen, Dongbin
Cao, Mingxiang
Zhang, Guolin
Kang, Jiahao
Xu, Shuxiang
Xu, Qi
author_sort Ding, Jingya
collection PubMed
description Co(3)O(4) is an environmental catalyst that can effectively decompose ozone, but is strongly affected by water vapor. In this study, Co(3)O(4)@SiO(2) catalysts with a core-shell-like structure were synthesized following the hydrothermal method. At 60% relative humidity and a space velocity of 720,000 h(−1), the prepared Co(3)O(4)@SiO(2) obtained 95% ozone decomposition for 40 ppm ozone after 6 h, which far outperformed that of the 25wt% Co(3)O(4)/SiO(2) catalysts. The superiority of Co(3)O(4)@SiO(2) is ascribed to its core@shell structure, in which Co(3)O(4) is wrapped inside the SiO(2) shell structure to avoid air exposure. This research provides important guidance for the high humidity resistance of catalysts for ozone decomposition.
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spelling pubmed-86956122021-12-24 Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone Ding, Jingya Cheng, Feng Meng, Zhen Cao, Yan Han, Fennv Chen, Dongbin Cao, Mingxiang Zhang, Guolin Kang, Jiahao Xu, Shuxiang Xu, Qi Front Chem Chemistry Co(3)O(4) is an environmental catalyst that can effectively decompose ozone, but is strongly affected by water vapor. In this study, Co(3)O(4)@SiO(2) catalysts with a core-shell-like structure were synthesized following the hydrothermal method. At 60% relative humidity and a space velocity of 720,000 h(−1), the prepared Co(3)O(4)@SiO(2) obtained 95% ozone decomposition for 40 ppm ozone after 6 h, which far outperformed that of the 25wt% Co(3)O(4)/SiO(2) catalysts. The superiority of Co(3)O(4)@SiO(2) is ascribed to its core@shell structure, in which Co(3)O(4) is wrapped inside the SiO(2) shell structure to avoid air exposure. This research provides important guidance for the high humidity resistance of catalysts for ozone decomposition. Frontiers Media S.A. 2021-12-09 /pmc/articles/PMC8695612/ /pubmed/34957055 http://dx.doi.org/10.3389/fchem.2021.803464 Text en Copyright © 2021 Ding, Cheng, Meng, Cao, Han, Chen, Cao, Zhang, Kang, Xu and Xu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Ding, Jingya
Cheng, Feng
Meng, Zhen
Cao, Yan
Han, Fennv
Chen, Dongbin
Cao, Mingxiang
Zhang, Guolin
Kang, Jiahao
Xu, Shuxiang
Xu, Qi
Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone
title Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone
title_full Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone
title_fullStr Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone
title_full_unstemmed Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone
title_short Core-Shell-Like Structured Co(3)O(4)@SiO(2) Catalyst for Highly Efficient Catalytic Elimination of Ozone
title_sort core-shell-like structured co(3)o(4)@sio(2) catalyst for highly efficient catalytic elimination of ozone
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8695612/
https://www.ncbi.nlm.nih.gov/pubmed/34957055
http://dx.doi.org/10.3389/fchem.2021.803464
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