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Plasmonic-enhanced photocatalysis reactions using gold nanostructured films

This work shows the enhancement of the visible photocatalytic activity of TiO(2) NPs film using the localized surface plasmonic resonance of Au nanostructures. We adopted a simple yet effective surface treatment to tune the size distribution, and plasmonic resonance spectrum of Au nanostructured fil...

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Detalles Bibliográficos
Autores principales: Ibrahem, Mohammed A., Rasheed, Bassam G., Mahdi, Rahman I., Khazal, Taha M., Omar, Maryam M., O'Neill, Mary
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9054582/
https://www.ncbi.nlm.nih.gov/pubmed/35514594
http://dx.doi.org/10.1039/d0ra03858j
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author Ibrahem, Mohammed A.
Rasheed, Bassam G.
Mahdi, Rahman I.
Khazal, Taha M.
Omar, Maryam M.
O'Neill, Mary
author_facet Ibrahem, Mohammed A.
Rasheed, Bassam G.
Mahdi, Rahman I.
Khazal, Taha M.
Omar, Maryam M.
O'Neill, Mary
author_sort Ibrahem, Mohammed A.
collection PubMed
description This work shows the enhancement of the visible photocatalytic activity of TiO(2) NPs film using the localized surface plasmonic resonance of Au nanostructures. We adopted a simple yet effective surface treatment to tune the size distribution, and plasmonic resonance spectrum of Au nanostructured films on glass substrates, by hot plate annealing in air at low temperatures. A hybrid photocatalytic film of TiO(2):Au is utilized to catalyse a selective photodegradation reaction of Methylene Blue in solution. Irradiation at the plasmonic resonance wavelength of the Au nanostructures provides more effective photodegradation compared to broadband artificial sunlight of significantly higher intensity. This improvement is attributed to the active contribution of the plasmonic hot electrons injected into the TiO(2). The broadband source initiates competing photoreactions in the photocatalyst, so that carrier transfer from the catalyst surface to the solution is less efficient. The proposed hybrid photocatalyst can be integrated with a variety of device architectures and designs, which makes it highly attractive for low-cost photocatalysis applications.
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spelling pubmed-90545822022-05-04 Plasmonic-enhanced photocatalysis reactions using gold nanostructured films Ibrahem, Mohammed A. Rasheed, Bassam G. Mahdi, Rahman I. Khazal, Taha M. Omar, Maryam M. O'Neill, Mary RSC Adv Chemistry This work shows the enhancement of the visible photocatalytic activity of TiO(2) NPs film using the localized surface plasmonic resonance of Au nanostructures. We adopted a simple yet effective surface treatment to tune the size distribution, and plasmonic resonance spectrum of Au nanostructured films on glass substrates, by hot plate annealing in air at low temperatures. A hybrid photocatalytic film of TiO(2):Au is utilized to catalyse a selective photodegradation reaction of Methylene Blue in solution. Irradiation at the plasmonic resonance wavelength of the Au nanostructures provides more effective photodegradation compared to broadband artificial sunlight of significantly higher intensity. This improvement is attributed to the active contribution of the plasmonic hot electrons injected into the TiO(2). The broadband source initiates competing photoreactions in the photocatalyst, so that carrier transfer from the catalyst surface to the solution is less efficient. The proposed hybrid photocatalyst can be integrated with a variety of device architectures and designs, which makes it highly attractive for low-cost photocatalysis applications. The Royal Society of Chemistry 2020-06-10 /pmc/articles/PMC9054582/ /pubmed/35514594 http://dx.doi.org/10.1039/d0ra03858j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Ibrahem, Mohammed A.
Rasheed, Bassam G.
Mahdi, Rahman I.
Khazal, Taha M.
Omar, Maryam M.
O'Neill, Mary
Plasmonic-enhanced photocatalysis reactions using gold nanostructured films
title Plasmonic-enhanced photocatalysis reactions using gold nanostructured films
title_full Plasmonic-enhanced photocatalysis reactions using gold nanostructured films
title_fullStr Plasmonic-enhanced photocatalysis reactions using gold nanostructured films
title_full_unstemmed Plasmonic-enhanced photocatalysis reactions using gold nanostructured films
title_short Plasmonic-enhanced photocatalysis reactions using gold nanostructured films
title_sort plasmonic-enhanced photocatalysis reactions using gold nanostructured films
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9054582/
https://www.ncbi.nlm.nih.gov/pubmed/35514594
http://dx.doi.org/10.1039/d0ra03858j
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