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Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation
The quick charge recombination of light-generated electrons and holes severely restricts the photocatalytic applications of single semiconductors. Here, a straightforward electrostatically driven self-assembly technique was used to construct an Ag(2)NCN/Ti(3)C(2)T(x) Schottky heterojunction, which w...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10251192/ https://www.ncbi.nlm.nih.gov/pubmed/37305443 http://dx.doi.org/10.1039/d3ra01776a |
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author | Yu, Haidong Jiang, Haibing Cao, Xuan Yao, Shuhua |
author_facet | Yu, Haidong Jiang, Haibing Cao, Xuan Yao, Shuhua |
author_sort | Yu, Haidong |
collection | PubMed |
description | The quick charge recombination of light-generated electrons and holes severely restricts the photocatalytic applications of single semiconductors. Here, a straightforward electrostatically driven self-assembly technique was used to construct an Ag(2)NCN/Ti(3)C(2)T(x) Schottky heterojunction, which was then used to degrade Rhodamine B (RhB) in the illumination of visible light. The findings from the experiments revealed that as a cocatalyst, Ti(3)C(2)T(x) significantly suppresses the recombination rate and broadens visible absorptivity to improve Ag(2)NCN photocatalytic efficiency. The optimized Ag(2)NCN/Ti(3)C(2)T(x) (AT2) composite exhibited an outstanding photocatalytic rate in 96 min, with the highest RhB degradation rate (k = 0.029 min(−1)), which was around fifteen times that of pure Ag(2)NCN (k = 0.002 min(−1)). Furthermore, the trapping-agent experiment showed photogenerated superoxide radicals and holes were the principal active agents inside the photodegradation of RhB. Compared with Ag-based semiconductors, the composite exhibited outstanding photostability, highlighting its excellent potential for application in visible-light photocatalysis. |
format | Online Article Text |
id | pubmed-10251192 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-102511922023-06-10 Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation Yu, Haidong Jiang, Haibing Cao, Xuan Yao, Shuhua RSC Adv Chemistry The quick charge recombination of light-generated electrons and holes severely restricts the photocatalytic applications of single semiconductors. Here, a straightforward electrostatically driven self-assembly technique was used to construct an Ag(2)NCN/Ti(3)C(2)T(x) Schottky heterojunction, which was then used to degrade Rhodamine B (RhB) in the illumination of visible light. The findings from the experiments revealed that as a cocatalyst, Ti(3)C(2)T(x) significantly suppresses the recombination rate and broadens visible absorptivity to improve Ag(2)NCN photocatalytic efficiency. The optimized Ag(2)NCN/Ti(3)C(2)T(x) (AT2) composite exhibited an outstanding photocatalytic rate in 96 min, with the highest RhB degradation rate (k = 0.029 min(−1)), which was around fifteen times that of pure Ag(2)NCN (k = 0.002 min(−1)). Furthermore, the trapping-agent experiment showed photogenerated superoxide radicals and holes were the principal active agents inside the photodegradation of RhB. Compared with Ag-based semiconductors, the composite exhibited outstanding photostability, highlighting its excellent potential for application in visible-light photocatalysis. The Royal Society of Chemistry 2023-06-09 /pmc/articles/PMC10251192/ /pubmed/37305443 http://dx.doi.org/10.1039/d3ra01776a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Yu, Haidong Jiang, Haibing Cao, Xuan Yao, Shuhua Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation |
title | Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation |
title_full | Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation |
title_fullStr | Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation |
title_full_unstemmed | Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation |
title_short | Ag(2)NCN anchored on Ti(3)C(2)T(x) MXene as a Schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine B degradation |
title_sort | ag(2)ncn anchored on ti(3)c(2)t(x) mxene as a schottky heterojunction: enhanced visible light photocatalytic efficiency of rhodamine b degradation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10251192/ https://www.ncbi.nlm.nih.gov/pubmed/37305443 http://dx.doi.org/10.1039/d3ra01776a |
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