Metallic silver modified SnO2–Zn2SnO4 cube nanomaterials for improved photocatalytic degradation of rhodamine B

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-30 DOI:10.1007/s11144-024-02682-2

Shuyun Huang, Huanhuan Xu, Yue Ouyang, Yun Zhou, Junwei Xu, Jianjun Liu

{"title":"Metallic silver modified SnO2–Zn2SnO4 cube nanomaterials for improved photocatalytic degradation of rhodamine B","authors":"Shuyun Huang, Huanhuan Xu, Yue Ouyang, Yun Zhou, Junwei Xu, Jianjun Liu","doi":"10.1007/s11144-024-02682-2","DOIUrl":null,"url":null,"abstract":"To modify the wide bandgap and intrinsic high recombination rate of photogenerated charge carriers of Zn2SnO4 photocatalysts, Ag/SnO2–Zn2SnO4 composites were prepared by depositing Ag nanoparticles onto cube-shaped SnO2–Zn2SnO4 nanomaterials via photoreduction. The composites were characterized by XRD, SEM, EDS, TEM, XPS, and UV–Vis DRS, and their photocatalytic degradation effect on rhodamine B (Rh B) for different Ag loadings was studied, with 10%Ag/SnO2–Zn2SnO4 showing the greatest effect. The UV photocatalytic degradation rate of the Rh B solution reaches 100% after 12 min of visible light irradiation and 91% after five cycles. The free radical trapping agent experiment indicated that the active substances of Ag/SnO2–Zn2SnO4 photocatalysis are ·O2− and h+. Further, photoelectrochemical tests revealed the higher electron–hole separation efficiency and faster charge transfer rate of the composites, enhancing the formation of photoproduced carriers and photocatalytic activity.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s11144-024-02682-2","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

To modify the wide bandgap and intrinsic high recombination rate of photogenerated charge carriers of Zn₂SnO₄ photocatalysts, Ag/SnO₂–Zn₂SnO₄ composites were prepared by depositing Ag nanoparticles onto cube-shaped SnO₂–Zn₂SnO₄ nanomaterials via photoreduction. The composites were characterized by XRD, SEM, EDS, TEM, XPS, and UV–Vis DRS, and their photocatalytic degradation effect on rhodamine B (Rh B) for different Ag loadings was studied, with 10%Ag/SnO₂–Zn₂SnO₄ showing the greatest effect. The UV photocatalytic degradation rate of the Rh B solution reaches 100% after 12 min of visible light irradiation and 91% after five cycles. The free radical trapping agent experiment indicated that the active substances of Ag/SnO₂–Zn₂SnO₄ photocatalysis are ·O₂⁻ and h⁺. Further, photoelectrochemical tests revealed the higher electron–hole separation efficiency and faster charge transfer rate of the composites, enhancing the formation of photoproduced carriers and photocatalytic activity.

Abstract Image

查看原文本刊更多论文

改进罗丹明 B 光催化降解的金属银修饰 SnO2-Zn2SnO4 立方体纳米材料

为了改变 Zn2SnO4 光催化剂的宽带隙和光生电荷载流子固有的高重组率特性，研究人员通过光还原法在立方体 SnO2-Zn2SnO4 纳米材料上沉积 Ag 纳米颗粒，制备了 Ag/SnO2-Zn2SnO4 复合材料。通过 XRD、SEM、EDS、TEM、XPS 和 UV-Vis DRS 对复合材料进行了表征，并研究了不同的 Ag 负载对罗丹明 B（Rh B）的光催化降解效果，其中 10%Ag/SnO2-Zn2SnO4 的光催化降解效果最好。可见光照射 12 分钟后，Rh B 溶液的紫外光催化降解率达到 100%，循环 5 次后降解率达到 91%。自由基捕获剂实验表明，Ag/SnO2-Zn2SnO4 光催化的活性物质为 -O2- 和 h+。此外，光电化学测试表明，复合材料的电子-空穴分离效率更高，电荷转移速率更快，从而增强了光生载流子的形成和光催化活性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.