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Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell Photocatalysts for Enhanced Photocatalytic Activity under Visible Light
[Image: see text] A new visible-light-responsive tetrahedral ultrathin metal–organic framework nanosheet (UMOFNs)/Ag(3)PO(4) composite photocatalyst with a core–shell structure was readily synthesized by sonication in an organic solvent. Characterization methods for the photocatalyst included X-ray...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777078/ https://www.ncbi.nlm.nih.gov/pubmed/31592468 http://dx.doi.org/10.1021/acsomega.9b02042 |
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author | Kusutaki, Tomoharu Katsumata, Hideyuki Tateishi, Ikki Furukawa, Mai Kaneco, Satoshi |
author_facet | Kusutaki, Tomoharu Katsumata, Hideyuki Tateishi, Ikki Furukawa, Mai Kaneco, Satoshi |
author_sort | Kusutaki, Tomoharu |
collection | PubMed |
description | [Image: see text] A new visible-light-responsive tetrahedral ultrathin metal–organic framework nanosheet (UMOFNs)/Ag(3)PO(4) composite photocatalyst with a core–shell structure was readily synthesized by sonication in an organic solvent. Characterization methods for the photocatalyst included X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and UV–vis diffuse reflectance spectroscopy. The XRD patterns of the composite photocatalyst before and after visible-light irradiation demonstrated that trace amounts of Ag ions in the composite photocatalyst easily transformed into Ag nanoparticles, which play a role in promoting charge separation at the interface of a heterojunction. The UMOFNs/Ag(3)PO(4) composite photocatalyst showed higher photocatalytic activity for the photodegradation of 2-chlorophenol (2-CP) under visible-light irradiation (>420 nm) than Ag(3)PO(4). The complete degradation of 2-CP was achieved in 7 min using the tetrahedral UMOFNs/Ag(3)PO(4) core–shell photocatalyst, and the apparent reaction rate was approximately 26 times higher than that of pure Ag(3)PO(4). Further, a scavenger experiment showed h(+) and O(2)(•–) were the major reactive species involved in the photocatalytic reaction system. This enhanced photocatalytic activity results from the efficient separation of photoinduced electron–hole pairs and the increase of interface area between Ag(3)PO(4), UMOFNs, and the Ag nanoparticles. |
format | Online Article Text |
id | pubmed-6777078 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-67770782019-10-07 Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell Photocatalysts for Enhanced Photocatalytic Activity under Visible Light Kusutaki, Tomoharu Katsumata, Hideyuki Tateishi, Ikki Furukawa, Mai Kaneco, Satoshi ACS Omega [Image: see text] A new visible-light-responsive tetrahedral ultrathin metal–organic framework nanosheet (UMOFNs)/Ag(3)PO(4) composite photocatalyst with a core–shell structure was readily synthesized by sonication in an organic solvent. Characterization methods for the photocatalyst included X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and UV–vis diffuse reflectance spectroscopy. The XRD patterns of the composite photocatalyst before and after visible-light irradiation demonstrated that trace amounts of Ag ions in the composite photocatalyst easily transformed into Ag nanoparticles, which play a role in promoting charge separation at the interface of a heterojunction. The UMOFNs/Ag(3)PO(4) composite photocatalyst showed higher photocatalytic activity for the photodegradation of 2-chlorophenol (2-CP) under visible-light irradiation (>420 nm) than Ag(3)PO(4). The complete degradation of 2-CP was achieved in 7 min using the tetrahedral UMOFNs/Ag(3)PO(4) core–shell photocatalyst, and the apparent reaction rate was approximately 26 times higher than that of pure Ag(3)PO(4). Further, a scavenger experiment showed h(+) and O(2)(•–) were the major reactive species involved in the photocatalytic reaction system. This enhanced photocatalytic activity results from the efficient separation of photoinduced electron–hole pairs and the increase of interface area between Ag(3)PO(4), UMOFNs, and the Ag nanoparticles. American Chemical Society 2019-09-19 /pmc/articles/PMC6777078/ /pubmed/31592468 http://dx.doi.org/10.1021/acsomega.9b02042 Text en Copyright © 2019 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Kusutaki, Tomoharu Katsumata, Hideyuki Tateishi, Ikki Furukawa, Mai Kaneco, Satoshi Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell Photocatalysts for Enhanced Photocatalytic Activity under Visible Light |
title | Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell
Photocatalysts for Enhanced Photocatalytic Activity under Visible
Light |
title_full | Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell
Photocatalysts for Enhanced Photocatalytic Activity under Visible
Light |
title_fullStr | Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell
Photocatalysts for Enhanced Photocatalytic Activity under Visible
Light |
title_full_unstemmed | Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell
Photocatalysts for Enhanced Photocatalytic Activity under Visible
Light |
title_short | Tetrahedral UMOFNs/Ag(3)PO(4) Core–Shell
Photocatalysts for Enhanced Photocatalytic Activity under Visible
Light |
title_sort | tetrahedral umofns/ag(3)po(4) core–shell
photocatalysts for enhanced photocatalytic activity under visible
light |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777078/ https://www.ncbi.nlm.nih.gov/pubmed/31592468 http://dx.doi.org/10.1021/acsomega.9b02042 |
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