Ming Zheng, Bing Gao, Suwen Tang, Min Zhu, Liang Tang, Minghong Wu
{"title":"助催化剂CdS对ZnMoO4制氢光催化性能的影响","authors":"Ming Zheng, Bing Gao, Suwen Tang, Min Zhu, Liang Tang, Minghong Wu","doi":"10.1007/s10563-022-09357-9","DOIUrl":null,"url":null,"abstract":"<div><p>Zinc molybdate (ZnMoO<sub>4</sub>), a layer perovskite material, has the advantages of high stability, excellent optical and charge properties. However, its high band gap and high electron–hole recombination efficiency limit its application in the photocatalytic reduction field like hydrogen production. In this study, we used CdS as a co-catalyst and successfully prepared CdS/ZnMoO<sub>4</sub> composite photocatalysts with different loadings. The hydrogen evolution rate of CdS/ZnMoO<sub>4</sub> reached 530.2 µmol h<sup>−1</sup> g<sup>−1</sup>, which was approximately 11 and 100 times more than rates of pure CdS and ZnMoO<sub>4</sub> under the same conditions, respectively. It is the presence of CdS that contributed to this improved performance, which acted as an electron acceptor to separate electrons and holes. Besides, a reasonable mechanism was provided based on photoelectrochemical characterizations. CdS loading greatly improved the hydrogen evolution performance of ZnMoO<sub>4</sub> under visible light, providing a direction to improving the performance of perovskite based photocatalysts.</p></div>","PeriodicalId":509,"journal":{"name":"Catalysis Surveys from Asia","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10563-022-09357-9.pdf","citationCount":"2","resultStr":"{\"title\":\"Effect of Co-catalyst CdS on the Photocatalytic Performance of ZnMoO4 for Hydrogen Production\",\"authors\":\"Ming Zheng, Bing Gao, Suwen Tang, Min Zhu, Liang Tang, Minghong Wu\",\"doi\":\"10.1007/s10563-022-09357-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Zinc molybdate (ZnMoO<sub>4</sub>), a layer perovskite material, has the advantages of high stability, excellent optical and charge properties. However, its high band gap and high electron–hole recombination efficiency limit its application in the photocatalytic reduction field like hydrogen production. In this study, we used CdS as a co-catalyst and successfully prepared CdS/ZnMoO<sub>4</sub> composite photocatalysts with different loadings. The hydrogen evolution rate of CdS/ZnMoO<sub>4</sub> reached 530.2 µmol h<sup>−1</sup> g<sup>−1</sup>, which was approximately 11 and 100 times more than rates of pure CdS and ZnMoO<sub>4</sub> under the same conditions, respectively. It is the presence of CdS that contributed to this improved performance, which acted as an electron acceptor to separate electrons and holes. Besides, a reasonable mechanism was provided based on photoelectrochemical characterizations. CdS loading greatly improved the hydrogen evolution performance of ZnMoO<sub>4</sub> under visible light, providing a direction to improving the performance of perovskite based photocatalysts.</p></div>\",\"PeriodicalId\":509,\"journal\":{\"name\":\"Catalysis Surveys from Asia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2022-03-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s10563-022-09357-9.pdf\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Surveys from Asia\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10563-022-09357-9\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Surveys from Asia","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10563-022-09357-9","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Effect of Co-catalyst CdS on the Photocatalytic Performance of ZnMoO4 for Hydrogen Production
Zinc molybdate (ZnMoO4), a layer perovskite material, has the advantages of high stability, excellent optical and charge properties. However, its high band gap and high electron–hole recombination efficiency limit its application in the photocatalytic reduction field like hydrogen production. In this study, we used CdS as a co-catalyst and successfully prepared CdS/ZnMoO4 composite photocatalysts with different loadings. The hydrogen evolution rate of CdS/ZnMoO4 reached 530.2 µmol h−1 g−1, which was approximately 11 and 100 times more than rates of pure CdS and ZnMoO4 under the same conditions, respectively. It is the presence of CdS that contributed to this improved performance, which acted as an electron acceptor to separate electrons and holes. Besides, a reasonable mechanism was provided based on photoelectrochemical characterizations. CdS loading greatly improved the hydrogen evolution performance of ZnMoO4 under visible light, providing a direction to improving the performance of perovskite based photocatalysts.
期刊介绍：
Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.
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