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Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites
Three-component nanocomposites (Fe(3)O(4)/Pd/mpg-C(3)N(4)) have been systematically synthesized using a three-step solution method for the photocatalytic bacterial decontamination. The mesoporous g-C(3)N(4) nanosheets (mpg-C(3)N(4)), which were prepared by the acid treatment, showed a great improvem...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864803/ https://www.ncbi.nlm.nih.gov/pubmed/31671750 http://dx.doi.org/10.3390/molecules24213888 |
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author | Thakur, Deepika Ta, Qui Thanh Hoai Noh, Jin-Seo |
author_facet | Thakur, Deepika Ta, Qui Thanh Hoai Noh, Jin-Seo |
author_sort | Thakur, Deepika |
collection | PubMed |
description | Three-component nanocomposites (Fe(3)O(4)/Pd/mpg-C(3)N(4)) have been systematically synthesized using a three-step solution method for the photocatalytic bacterial decontamination. The mesoporous g-C(3)N(4) nanosheets (mpg-C(3)N(4)), which were prepared by the acid treatment, showed a great improvement in photocatalytic performance. The photoluminescence intensity of the mpg-C(3)N(4) nanosheets was disclosed to drop about 60% from the value of normal g-C(3)N(4) nanosheets. Decoration of mpg-C(3)N(4) with palladium (Pd) nanoparticles led to the effective suppression of carrier recombination and the carrier migration to Fe(3)O(4) nanoparticles. It was revealed that the three-component nanocomposites degraded 99.9% of E. coli and 99.8% of S. aureus bacterial strains within 2 h of solar light irradiation at a 100 μg/mL concentration, demonstrating their superb photocatalytic antibacterial activity. In addition, the nanocomposites could be easily separated from the bacterial cells and repeatedly used for photocatalytic bacterial degradation with good recyclability. The strong photon-induced antibacterial activity and good recyclability of the three-component nanocomposites may represent their potential as a promising antibacterial photocatalyst. |
format | Online Article Text |
id | pubmed-6864803 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68648032019-12-06 Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites Thakur, Deepika Ta, Qui Thanh Hoai Noh, Jin-Seo Molecules Article Three-component nanocomposites (Fe(3)O(4)/Pd/mpg-C(3)N(4)) have been systematically synthesized using a three-step solution method for the photocatalytic bacterial decontamination. The mesoporous g-C(3)N(4) nanosheets (mpg-C(3)N(4)), which were prepared by the acid treatment, showed a great improvement in photocatalytic performance. The photoluminescence intensity of the mpg-C(3)N(4) nanosheets was disclosed to drop about 60% from the value of normal g-C(3)N(4) nanosheets. Decoration of mpg-C(3)N(4) with palladium (Pd) nanoparticles led to the effective suppression of carrier recombination and the carrier migration to Fe(3)O(4) nanoparticles. It was revealed that the three-component nanocomposites degraded 99.9% of E. coli and 99.8% of S. aureus bacterial strains within 2 h of solar light irradiation at a 100 μg/mL concentration, demonstrating their superb photocatalytic antibacterial activity. In addition, the nanocomposites could be easily separated from the bacterial cells and repeatedly used for photocatalytic bacterial degradation with good recyclability. The strong photon-induced antibacterial activity and good recyclability of the three-component nanocomposites may represent their potential as a promising antibacterial photocatalyst. MDPI 2019-10-29 /pmc/articles/PMC6864803/ /pubmed/31671750 http://dx.doi.org/10.3390/molecules24213888 Text en © 2019 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 Thakur, Deepika Ta, Qui Thanh Hoai Noh, Jin-Seo Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites |
title | Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites |
title_full | Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites |
title_fullStr | Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites |
title_full_unstemmed | Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites |
title_short | Photon-Induced Superior Antibacterial Activity of Palladium-Decorated, Magnetically Separable Fe(3)O(4)/Pd/mpg-C(3)N(4) Nanocomposites |
title_sort | photon-induced superior antibacterial activity of palladium-decorated, magnetically separable fe(3)o(4)/pd/mpg-c(3)n(4) nanocomposites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864803/ https://www.ncbi.nlm.nih.gov/pubmed/31671750 http://dx.doi.org/10.3390/molecules24213888 |
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