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Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays
Plasmonic metal/semiconductor composites have attracted great attention for efficient solar energy harvesting in photovoltaic and photocatalytic applications owing to their extremely high visible-light absorption and tuned effective band gap. In this work, Ag-loaded TiO(2) nanocolumn (Ag-TNC) arrays...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7214874/ https://www.ncbi.nlm.nih.gov/pubmed/32461873 http://dx.doi.org/10.3762/bjnano.11.59 |
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author | Xu, Jinghan Liu, Yanqi Zhao, Yan |
author_facet | Xu, Jinghan Liu, Yanqi Zhao, Yan |
author_sort | Xu, Jinghan |
collection | PubMed |
description | Plasmonic metal/semiconductor composites have attracted great attention for efficient solar energy harvesting in photovoltaic and photocatalytic applications owing to their extremely high visible-light absorption and tuned effective band gap. In this work, Ag-loaded TiO(2) nanocolumn (Ag-TNC) arrays were fabricated based on anodic aluminum oxide (AAO) template by combining atomic layer deposition (ALD) and vacuum evaporation. The effects of the Ag loading position and deposition thickness, and the morphology, structure and composition of Ag-deposited TNC arrays on its optical and photocatalytic properties were studied. The Ag-filled TiO(2) (AFT) nanocolumn arrays exhibited higher removal efficiency of methylene blue (MB) compared with Ag-coated TiO(2) (ACT) nanocolumn arrays and pure TiO(2) nanocolumns arrays. Both experimental and theoretical simulation results demonstrated that the enhanced photocatalytic performance of AFT nanocolumn arrays was attributed to the surface plasmon resonance (SPR) of Ag and the absorption of light by TiO(2). These results represent a promising step forward to the development of high-performance photocatalysts for energy conversion and storage. |
format | Online Article Text |
id | pubmed-7214874 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-72148742020-05-26 Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays Xu, Jinghan Liu, Yanqi Zhao, Yan Beilstein J Nanotechnol Full Research Paper Plasmonic metal/semiconductor composites have attracted great attention for efficient solar energy harvesting in photovoltaic and photocatalytic applications owing to their extremely high visible-light absorption and tuned effective band gap. In this work, Ag-loaded TiO(2) nanocolumn (Ag-TNC) arrays were fabricated based on anodic aluminum oxide (AAO) template by combining atomic layer deposition (ALD) and vacuum evaporation. The effects of the Ag loading position and deposition thickness, and the morphology, structure and composition of Ag-deposited TNC arrays on its optical and photocatalytic properties were studied. The Ag-filled TiO(2) (AFT) nanocolumn arrays exhibited higher removal efficiency of methylene blue (MB) compared with Ag-coated TiO(2) (ACT) nanocolumn arrays and pure TiO(2) nanocolumns arrays. Both experimental and theoretical simulation results demonstrated that the enhanced photocatalytic performance of AFT nanocolumn arrays was attributed to the surface plasmon resonance (SPR) of Ag and the absorption of light by TiO(2). These results represent a promising step forward to the development of high-performance photocatalysts for energy conversion and storage. Beilstein-Institut 2020-05-05 /pmc/articles/PMC7214874/ /pubmed/32461873 http://dx.doi.org/10.3762/bjnano.11.59 Text en Copyright © 2020, Xu et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Xu, Jinghan Liu, Yanqi Zhao, Yan Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays |
title | Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays |
title_full | Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays |
title_fullStr | Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays |
title_full_unstemmed | Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays |
title_short | Effect of Ag loading position on the photocatalytic performance of TiO(2) nanocolumn arrays |
title_sort | effect of ag loading position on the photocatalytic performance of tio(2) nanocolumn arrays |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7214874/ https://www.ncbi.nlm.nih.gov/pubmed/32461873 http://dx.doi.org/10.3762/bjnano.11.59 |
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