Yupeng Shi , Zisheng Guan , Changchun Chen , Xinhui Zhu , Jianhai Wang , Yifeng Wang , Lin Pan , Yaru Ni
{"title":"合成具有 S 型异质结的新型 ZnIn0.2Ga1.8O4/CaIn2S4 复合材料，用于高效光催化降解有机污染物和氢气生成","authors":"Yupeng Shi , Zisheng Guan , Changchun Chen , Xinhui Zhu , Jianhai Wang , Yifeng Wang , Lin Pan , Yaru Ni","doi":"10.1016/j.flatc.2023.100595","DOIUrl":null,"url":null,"abstract":"<div><p>Semiconductor photocatalysts that can both photocatalytic evolve hydrogen from water and degrade organic pollutants are very important to solve the problem of energy shortage and environmental pollution. The S-scheme ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4/</sub>CaIn<sub>2</sub>S<sub>4</sub> complex was successfully synthesized using sol–gel and oil bath methods. Characterization technique indicates that chrysanthemum-shaped CaIn<sub>2</sub>S<sub>4</sub> is anchored on the surface of irregular nanoparticles ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, forming a closely packed heterostructure. The bandgap values of CaIn<sub>2</sub>S<sub>4</sub> and Zn(In<sub>0.1</sub>Ga<sub>0.9</sub>)<sub>2</sub>O<sub>4</sub> were determined as 2.11 eV and 3.61 eV, respectively. Under visible-light irradiation, the ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4/</sub>CaIn<sub>2</sub>S<sub>4</sub>-1(ZC-1) photocatalyst exhibited superior performance in degrading an organic pollutant (RhB) and generating hydrogen compared to ZnGa<sub>2</sub>O<sub>4</sub>, ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, and CaIn<sub>2</sub>S<sub>4</sub> alone. The photocatalytic degradation of RhB using ZC-1 was 1.7, 1.31, and 1.14 times higher than that of ZnGa<sub>2</sub>O<sub>4</sub>, ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, and CaIn<sub>2</sub>S<sub>4</sub>, respectively. Moreover, the photocatalytic hydrogen evolution rate of ZC-1 was 5.8, 3.7, and 13 times higher than that of ZnGa<sub>2</sub>O<sub>4</sub>, ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, and CaIn<sub>2</sub>S<sub>4</sub>, respectively. The formation of S-type heterojunctions in the composite photocatalysts was confirmed through free radical trapping and electron paramagnetic resonance tests, further enhancing hydrogen production and organic pollutant degradation. This study presents a novel approach for developing ZnGa<sub>2</sub>O<sub>4</sub>-based composite photocatalysts with S-scheme heterojunctions to address energy shortage and environmental pollution in the future.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":null,"pages":null},"PeriodicalIF":5.9000,"publicationDate":"2023-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of novel ZnIn0.2Ga1.8O4/CaIn2S4 composite material with S-scheme heterojunction for efficient photocatalytic degradation of organic pollutants and hydrogen evolution\",\"authors\":\"Yupeng Shi , Zisheng Guan , Changchun Chen , Xinhui Zhu , Jianhai Wang , Yifeng Wang , Lin Pan , Yaru Ni\",\"doi\":\"10.1016/j.flatc.2023.100595\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Semiconductor photocatalysts that can both photocatalytic evolve hydrogen from water and degrade organic pollutants are very important to solve the problem of energy shortage and environmental pollution. The S-scheme ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4/</sub>CaIn<sub>2</sub>S<sub>4</sub> complex was successfully synthesized using sol–gel and oil bath methods. Characterization technique indicates that chrysanthemum-shaped CaIn<sub>2</sub>S<sub>4</sub> is anchored on the surface of irregular nanoparticles ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, forming a closely packed heterostructure. The bandgap values of CaIn<sub>2</sub>S<sub>4</sub> and Zn(In<sub>0.1</sub>Ga<sub>0.9</sub>)<sub>2</sub>O<sub>4</sub> were determined as 2.11 eV and 3.61 eV, respectively. Under visible-light irradiation, the ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4/</sub>CaIn<sub>2</sub>S<sub>4</sub>-1(ZC-1) photocatalyst exhibited superior performance in degrading an organic pollutant (RhB) and generating hydrogen compared to ZnGa<sub>2</sub>O<sub>4</sub>, ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, and CaIn<sub>2</sub>S<sub>4</sub> alone. The photocatalytic degradation of RhB using ZC-1 was 1.7, 1.31, and 1.14 times higher than that of ZnGa<sub>2</sub>O<sub>4</sub>, ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, and CaIn<sub>2</sub>S<sub>4</sub>, respectively. Moreover, the photocatalytic hydrogen evolution rate of ZC-1 was 5.8, 3.7, and 13 times higher than that of ZnGa<sub>2</sub>O<sub>4</sub>, ZnIn<sub>0.2</sub>Ga<sub>1.8</sub>O<sub>4</sub>, and CaIn<sub>2</sub>S<sub>4</sub>, respectively. The formation of S-type heterojunctions in the composite photocatalysts was confirmed through free radical trapping and electron paramagnetic resonance tests, further enhancing hydrogen production and organic pollutant degradation. This study presents a novel approach for developing ZnGa<sub>2</sub>O<sub>4</sub>-based composite photocatalysts with S-scheme heterojunctions to address energy shortage and environmental pollution in the future.</p></div>\",\"PeriodicalId\":316,\"journal\":{\"name\":\"FlatChem\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.9000,\"publicationDate\":\"2023-12-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"FlatChem\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2452262723001277\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"FlatChem","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452262723001277","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synthesis of novel ZnIn0.2Ga1.8O4/CaIn2S4 composite material with S-scheme heterojunction for efficient photocatalytic degradation of organic pollutants and hydrogen evolution
Semiconductor photocatalysts that can both photocatalytic evolve hydrogen from water and degrade organic pollutants are very important to solve the problem of energy shortage and environmental pollution. The S-scheme ZnIn0.2Ga1.8O4/CaIn2S4 complex was successfully synthesized using sol–gel and oil bath methods. Characterization technique indicates that chrysanthemum-shaped CaIn2S4 is anchored on the surface of irregular nanoparticles ZnIn0.2Ga1.8O4, forming a closely packed heterostructure. The bandgap values of CaIn2S4 and Zn(In0.1Ga0.9)2O4 were determined as 2.11 eV and 3.61 eV, respectively. Under visible-light irradiation, the ZnIn0.2Ga1.8O4/CaIn2S4-1(ZC-1) photocatalyst exhibited superior performance in degrading an organic pollutant (RhB) and generating hydrogen compared to ZnGa2O4, ZnIn0.2Ga1.8O4, and CaIn2S4 alone. The photocatalytic degradation of RhB using ZC-1 was 1.7, 1.31, and 1.14 times higher than that of ZnGa2O4, ZnIn0.2Ga1.8O4, and CaIn2S4, respectively. Moreover, the photocatalytic hydrogen evolution rate of ZC-1 was 5.8, 3.7, and 13 times higher than that of ZnGa2O4, ZnIn0.2Ga1.8O4, and CaIn2S4, respectively. The formation of S-type heterojunctions in the composite photocatalysts was confirmed through free radical trapping and electron paramagnetic resonance tests, further enhancing hydrogen production and organic pollutant degradation. This study presents a novel approach for developing ZnGa2O4-based composite photocatalysts with S-scheme heterojunctions to address energy shortage and environmental pollution in the future.
期刊介绍：
FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)
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