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Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods
ZnO nanorods decorated with metal nanoparticles have sparked considerable interest in recent years thanks to their suitability for a wide range of applications, such as photocatalysis, photovoltaics, antibacterial activity, and sensing devices. In this study, we prepared and investigated the improve...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9412419/ https://www.ncbi.nlm.nih.gov/pubmed/36014747 http://dx.doi.org/10.3390/nano12162882 |
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author | Em, Svetlana Yedigenov, Mussa Khamkhash, Laura Atabaev, Shanazar Molkenova, Anara Poulopoulos, Stavros G. Atabaev, Timur Sh. |
author_facet | Em, Svetlana Yedigenov, Mussa Khamkhash, Laura Atabaev, Shanazar Molkenova, Anara Poulopoulos, Stavros G. Atabaev, Timur Sh. |
author_sort | Em, Svetlana |
collection | PubMed |
description | ZnO nanorods decorated with metal nanoparticles have sparked considerable interest in recent years thanks to their suitability for a wide range of applications, such as photocatalysis, photovoltaics, antibacterial activity, and sensing devices. In this study, we prepared and investigated the improved solar-light-assisted photocatalytic activity of ZnO nanorods (NRs) decorated with Ag nanoparticles (NPs) using a conventional rhodamine B (RB) dye as a model water pollutant. We showed that the presence of Ag NPs on the surface of ZnO NRs significantly increases the degradation rate of RB dye (~0.2432 min(−1)) when compared to bare ZnO NRs (~0.0431 min(−1)). The improved photocatalytic activity of ZnO-Ag was further experimentally tested using radical scavengers. The obtained results reveal that ˙OH and ˙O(2)(−) radicals are main active species involved in the RB dye photodegradation by ZnO-Ag NRs. It was concluded that efficient charge separation plays a major role in photocatalytic activity improvement. |
format | Online Article Text |
id | pubmed-9412419 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94124192022-08-27 Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods Em, Svetlana Yedigenov, Mussa Khamkhash, Laura Atabaev, Shanazar Molkenova, Anara Poulopoulos, Stavros G. Atabaev, Timur Sh. Nanomaterials (Basel) Communication ZnO nanorods decorated with metal nanoparticles have sparked considerable interest in recent years thanks to their suitability for a wide range of applications, such as photocatalysis, photovoltaics, antibacterial activity, and sensing devices. In this study, we prepared and investigated the improved solar-light-assisted photocatalytic activity of ZnO nanorods (NRs) decorated with Ag nanoparticles (NPs) using a conventional rhodamine B (RB) dye as a model water pollutant. We showed that the presence of Ag NPs on the surface of ZnO NRs significantly increases the degradation rate of RB dye (~0.2432 min(−1)) when compared to bare ZnO NRs (~0.0431 min(−1)). The improved photocatalytic activity of ZnO-Ag was further experimentally tested using radical scavengers. The obtained results reveal that ˙OH and ˙O(2)(−) radicals are main active species involved in the RB dye photodegradation by ZnO-Ag NRs. It was concluded that efficient charge separation plays a major role in photocatalytic activity improvement. MDPI 2022-08-22 /pmc/articles/PMC9412419/ /pubmed/36014747 http://dx.doi.org/10.3390/nano12162882 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Communication Em, Svetlana Yedigenov, Mussa Khamkhash, Laura Atabaev, Shanazar Molkenova, Anara Poulopoulos, Stavros G. Atabaev, Timur Sh. Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods |
title | Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods |
title_full | Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods |
title_fullStr | Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods |
title_full_unstemmed | Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods |
title_short | Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods |
title_sort | uncovering the role of surface-attached ag nanoparticles in photodegradation improvement of rhodamine b by zno-ag nanorods |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9412419/ https://www.ncbi.nlm.nih.gov/pubmed/36014747 http://dx.doi.org/10.3390/nano12162882 |
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