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In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution
The prevention of photocorrosion in photocatalysts allows for the use of a wide variety of visible-light-responsive photocatalysts, leading to highly efficient photocatalytic reactions. This study aimed to avoid the photocorrosion issues associated with pure CdS, a known photocorrosive photocatalyst...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047525/ https://www.ncbi.nlm.nih.gov/pubmed/35492568 http://dx.doi.org/10.1039/c9ra09858e |
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author | Nagakawa, Haruki Nagata, Morio |
author_facet | Nagakawa, Haruki Nagata, Morio |
author_sort | Nagakawa, Haruki |
collection | PubMed |
description | The prevention of photocorrosion in photocatalysts allows for the use of a wide variety of visible-light-responsive photocatalysts, leading to highly efficient photocatalytic reactions. This study aimed to avoid the photocorrosion issues associated with pure CdS, a known photocorrosive photocatalyst, by forming a stable CdWO(4) shell on the surface of a CdS core. The CdS/CdWO(4) core–shell composite was formed using a unique method based on CdS elution under acidic conditions. An optimal CdWO(4) nanorod shell was formed at a pH of 0.8, a reaction time of 30 min, and a calcination temperature of 400 °C, where the core remained intact and was sufficiently coated. The prepared CdS/CdWO(4) core–shell composite was shown to be stable when exposed to light irradiation in pure water. Furthermore, it was successfully used in water splitting with an oxidation reaction side photocatalyst. This core–shell synthesis method based on core dissolution was easily and highly controlled, and is suitable for use in other similar core–shell composite applications. |
format | Online Article Text |
id | pubmed-9047525 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90475252022-04-28 In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution Nagakawa, Haruki Nagata, Morio RSC Adv Chemistry The prevention of photocorrosion in photocatalysts allows for the use of a wide variety of visible-light-responsive photocatalysts, leading to highly efficient photocatalytic reactions. This study aimed to avoid the photocorrosion issues associated with pure CdS, a known photocorrosive photocatalyst, by forming a stable CdWO(4) shell on the surface of a CdS core. The CdS/CdWO(4) core–shell composite was formed using a unique method based on CdS elution under acidic conditions. An optimal CdWO(4) nanorod shell was formed at a pH of 0.8, a reaction time of 30 min, and a calcination temperature of 400 °C, where the core remained intact and was sufficiently coated. The prepared CdS/CdWO(4) core–shell composite was shown to be stable when exposed to light irradiation in pure water. Furthermore, it was successfully used in water splitting with an oxidation reaction side photocatalyst. This core–shell synthesis method based on core dissolution was easily and highly controlled, and is suitable for use in other similar core–shell composite applications. The Royal Society of Chemistry 2019-12-23 /pmc/articles/PMC9047525/ /pubmed/35492568 http://dx.doi.org/10.1039/c9ra09858e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Nagakawa, Haruki Nagata, Morio In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution |
title |
In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution |
title_full |
In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution |
title_fullStr |
In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution |
title_full_unstemmed |
In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution |
title_short |
In situ synthesis of CdS/CdWO(4) nanorods core–shell composite via acid dissolution |
title_sort | in situ synthesis of cds/cdwo(4) nanorods core–shell composite via acid dissolution |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047525/ https://www.ncbi.nlm.nih.gov/pubmed/35492568 http://dx.doi.org/10.1039/c9ra09858e |
work_keys_str_mv | AT nagakawaharuki insitusynthesisofcdscdwo4nanorodscoreshellcompositeviaaciddissolution AT nagatamorio insitusynthesisofcdscdwo4nanorodscoreshellcompositeviaaciddissolution |