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Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework

Bisphenol A (BPA), one of 23 most important endocrine disrupting chemicals, was efficiently removed and sequentially photodegraded by a zirconium-porphyrin metal–organic framework (MOF) catalyst under visible light for water treatment. Well control of photodegradation allows the kinetic separation o...

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Autores principales: Meng, Ai-Na, Chaihu, Ling-Xiao, Chen, Huan-Huan, Gu, Zhi-Yuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5524690/
https://www.ncbi.nlm.nih.gov/pubmed/28740182
http://dx.doi.org/10.1038/s41598-017-06194-z
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author Meng, Ai-Na
Chaihu, Ling-Xiao
Chen, Huan-Huan
Gu, Zhi-Yuan
author_facet Meng, Ai-Na
Chaihu, Ling-Xiao
Chen, Huan-Huan
Gu, Zhi-Yuan
author_sort Meng, Ai-Na
collection PubMed
description Bisphenol A (BPA), one of 23 most important endocrine disrupting chemicals, was efficiently removed and sequentially photodegraded by a zirconium-porphyrin metal–organic framework (MOF) catalyst under visible light for water treatment. Well control of photodegradation allows the kinetic separation of adsorption step and photodegradation step. Ultrahigh adsorption uptake of 487.69 ± 8.37 mg g(−1) is observed, while efficient photodegradation could be observed within 20 min at the rate of 0.004 mg min(−1). The synergetic effect boosts the photocatalytic efficiency and confirms that the catalysis happens inside the MOF pores other than in the solution phase. Furthermore, the mechanism was elucidated by diverse control experiments, such as in the conditions of (1)O(2) scavenger, in darkness and with the changes of light sensitizing ligands. It confirmed that BPA was oxidized by the (1)O(2) which was generated from porphyrin ligand within MOFs under visible-light. The excellent reusability and wide range of suitable pH range make the Zr-porphyrin MOFs practical for the photocatalytic water treatment processes.
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spelling pubmed-55246902017-07-26 Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework Meng, Ai-Na Chaihu, Ling-Xiao Chen, Huan-Huan Gu, Zhi-Yuan Sci Rep Article Bisphenol A (BPA), one of 23 most important endocrine disrupting chemicals, was efficiently removed and sequentially photodegraded by a zirconium-porphyrin metal–organic framework (MOF) catalyst under visible light for water treatment. Well control of photodegradation allows the kinetic separation of adsorption step and photodegradation step. Ultrahigh adsorption uptake of 487.69 ± 8.37 mg g(−1) is observed, while efficient photodegradation could be observed within 20 min at the rate of 0.004 mg min(−1). The synergetic effect boosts the photocatalytic efficiency and confirms that the catalysis happens inside the MOF pores other than in the solution phase. Furthermore, the mechanism was elucidated by diverse control experiments, such as in the conditions of (1)O(2) scavenger, in darkness and with the changes of light sensitizing ligands. It confirmed that BPA was oxidized by the (1)O(2) which was generated from porphyrin ligand within MOFs under visible-light. The excellent reusability and wide range of suitable pH range make the Zr-porphyrin MOFs practical for the photocatalytic water treatment processes. Nature Publishing Group UK 2017-07-24 /pmc/articles/PMC5524690/ /pubmed/28740182 http://dx.doi.org/10.1038/s41598-017-06194-z Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Meng, Ai-Na
Chaihu, Ling-Xiao
Chen, Huan-Huan
Gu, Zhi-Yuan
Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework
title Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework
title_full Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework
title_fullStr Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework
title_full_unstemmed Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework
title_short Ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol A by a stable zirconium-porphyrin metal-organic framework
title_sort ultrahigh adsorption and singlet-oxygen mediated degradation for efficient synergetic removal of bisphenol a by a stable zirconium-porphyrin metal-organic framework
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5524690/
https://www.ncbi.nlm.nih.gov/pubmed/28740182
http://dx.doi.org/10.1038/s41598-017-06194-z
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