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Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk
In this study, Co-doped TiO(2) was synthesized using waste tobacco stem silk (TSS) as a template via a one-pot impregnation method. These samples were characterized using various physicochemical techniques such as N(2) adsorption/desorption analysis, diffuse reflectance UV–visible spectroscopy, X-ra...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9822450/ https://www.ncbi.nlm.nih.gov/pubmed/36615581 http://dx.doi.org/10.3390/molecules28010386 |
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author | Li, Quanhui Jiang, Liang Li, Yuan Wang, Xiangrong Zhao, Lixia Huang, Pizhen Chen, Daomei Wang, Jiaqiang |
author_facet | Li, Quanhui Jiang, Liang Li, Yuan Wang, Xiangrong Zhao, Lixia Huang, Pizhen Chen, Daomei Wang, Jiaqiang |
author_sort | Li, Quanhui |
collection | PubMed |
description | In this study, Co-doped TiO(2) was synthesized using waste tobacco stem silk (TSS) as a template via a one-pot impregnation method. These samples were characterized using various physicochemical techniques such as N(2) adsorption/desorption analysis, diffuse reflectance UV–visible spectroscopy, X-ray diffraction, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectroscopy, and electron paramagnetic resonance spectroscopy. The synthesized material was used for the photodegradation of tetracycline hydrochloride (TCH) under visible light (420–800 nm). No strong photodegradation activity was observed for mesoporous TiO(2) synthesized using waste TSS as a template, mesoporous Co-doped TiO(2), or TiO(2). In contrast, Co-doped mesoporous TiO(2) synthesized using waste TSS as a template exhibited significant photocatalytic degradation, with 86% removal of TCH. Moreover, owing to the unique chemical structure of Ti-O-Co, the energy gap of TiO(2) decreased. The edge of the absorption band was redshifted, such that the photoexcitation energy for generating electron–hole pairs decreased. The electron–hole separation efficiency improved, rendering the microstructured biotemplated TiO(2) a much more efficient catalyst for the visible-light degradation of TCH. |
format | Online Article Text |
id | pubmed-9822450 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98224502023-01-07 Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk Li, Quanhui Jiang, Liang Li, Yuan Wang, Xiangrong Zhao, Lixia Huang, Pizhen Chen, Daomei Wang, Jiaqiang Molecules Article In this study, Co-doped TiO(2) was synthesized using waste tobacco stem silk (TSS) as a template via a one-pot impregnation method. These samples were characterized using various physicochemical techniques such as N(2) adsorption/desorption analysis, diffuse reflectance UV–visible spectroscopy, X-ray diffraction, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectroscopy, and electron paramagnetic resonance spectroscopy. The synthesized material was used for the photodegradation of tetracycline hydrochloride (TCH) under visible light (420–800 nm). No strong photodegradation activity was observed for mesoporous TiO(2) synthesized using waste TSS as a template, mesoporous Co-doped TiO(2), or TiO(2). In contrast, Co-doped mesoporous TiO(2) synthesized using waste TSS as a template exhibited significant photocatalytic degradation, with 86% removal of TCH. Moreover, owing to the unique chemical structure of Ti-O-Co, the energy gap of TiO(2) decreased. The edge of the absorption band was redshifted, such that the photoexcitation energy for generating electron–hole pairs decreased. The electron–hole separation efficiency improved, rendering the microstructured biotemplated TiO(2) a much more efficient catalyst for the visible-light degradation of TCH. MDPI 2023-01-02 /pmc/articles/PMC9822450/ /pubmed/36615581 http://dx.doi.org/10.3390/molecules28010386 Text en © 2023 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 | Article Li, Quanhui Jiang, Liang Li, Yuan Wang, Xiangrong Zhao, Lixia Huang, Pizhen Chen, Daomei Wang, Jiaqiang Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk |
title | Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk |
title_full | Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk |
title_fullStr | Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk |
title_full_unstemmed | Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk |
title_short | Enhancement of Visible-Light Photocatalytic Degradation of Tetracycline by Co-Doped TiO(2) Templated by Waste Tobacco Stem Silk |
title_sort | enhancement of visible-light photocatalytic degradation of tetracycline by co-doped tio(2) templated by waste tobacco stem silk |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9822450/ https://www.ncbi.nlm.nih.gov/pubmed/36615581 http://dx.doi.org/10.3390/molecules28010386 |
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