{"title":"原位构建新型 In2S3/BiOIO3 异质结,提高可见光光降解各种持久性有机污染物的性能","authors":"","doi":"10.1016/j.jssc.2024.124952","DOIUrl":null,"url":null,"abstract":"<div><p>Designing rational heterojunctions to achieve efficient separation and transmission of photoinduced charge carriers is one of the effective strategies to improve the activity of semiconductor photocatalysts. In this study, the novel In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> binary heterojunctions were facilely synthesized at room temperature using a simple <em>in-situ</em> growth method. The physicochemical properties of the fabricated In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> heterojunction catalyst were investigated using various techniques including XRD, FT-IR, BET, XPS, TEM, UV–vis DRS, PL, EIS, and PC analysis. The In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> composite catalyst possesses suitable band position and bandgap energy and therefore is capable of degrading organic contaminants under visible light irradiation. The optimized composite catalyst with In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> molar ratio of 0.5 (In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub>-5) exhibited superior photocatalytic activity, achieving 98.6 % degradation rate for Rhodamine B (RhB), far surpassing the performance of the individual components. In addition, In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub>-5 showed broad-spectrum photocatalytic activity in the decomposition of various organic pollutants including methyl orange (MO), methylene blue (MB), tetracycline (TC) and bisphenol A (BPA). The improved photocatalytic activity of the prepared composite catalysts can be ascribed to the formation of type-II heterojunction, which facilitates the separation and migration of e<sup>–</sup>/h<sup>+</sup> pairs. The excellent photocatalytic properties and favorable structural stability make In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub>-5 a viable material for degrading various persistent organic pollutants.</p></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In-situ construction of the novel In2S3/BiOIO3 heterojunction with boosted visible-light photodegradation performance for diverse persistent organic pollutants\",\"authors\":\"\",\"doi\":\"10.1016/j.jssc.2024.124952\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Designing rational heterojunctions to achieve efficient separation and transmission of photoinduced charge carriers is one of the effective strategies to improve the activity of semiconductor photocatalysts. In this study, the novel In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> binary heterojunctions were facilely synthesized at room temperature using a simple <em>in-situ</em> growth method. The physicochemical properties of the fabricated In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> heterojunction catalyst were investigated using various techniques including XRD, FT-IR, BET, XPS, TEM, UV–vis DRS, PL, EIS, and PC analysis. The In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> composite catalyst possesses suitable band position and bandgap energy and therefore is capable of degrading organic contaminants under visible light irradiation. The optimized composite catalyst with In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub> molar ratio of 0.5 (In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub>-5) exhibited superior photocatalytic activity, achieving 98.6 % degradation rate for Rhodamine B (RhB), far surpassing the performance of the individual components. In addition, In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub>-5 showed broad-spectrum photocatalytic activity in the decomposition of various organic pollutants including methyl orange (MO), methylene blue (MB), tetracycline (TC) and bisphenol A (BPA). The improved photocatalytic activity of the prepared composite catalysts can be ascribed to the formation of type-II heterojunction, which facilitates the separation and migration of e<sup>–</sup>/h<sup>+</sup> pairs. The excellent photocatalytic properties and favorable structural stability make In<sub>2</sub>S<sub>3</sub>/BiOIO<sub>3</sub>-5 a viable material for degrading various persistent organic pollutants.</p></div>\",\"PeriodicalId\":378,\"journal\":{\"name\":\"Journal of Solid State Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-08-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022459624004067\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022459624004067","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
In-situ construction of the novel In2S3/BiOIO3 heterojunction with boosted visible-light photodegradation performance for diverse persistent organic pollutants
Designing rational heterojunctions to achieve efficient separation and transmission of photoinduced charge carriers is one of the effective strategies to improve the activity of semiconductor photocatalysts. In this study, the novel In2S3/BiOIO3 binary heterojunctions were facilely synthesized at room temperature using a simple in-situ growth method. The physicochemical properties of the fabricated In2S3/BiOIO3 heterojunction catalyst were investigated using various techniques including XRD, FT-IR, BET, XPS, TEM, UV–vis DRS, PL, EIS, and PC analysis. The In2S3/BiOIO3 composite catalyst possesses suitable band position and bandgap energy and therefore is capable of degrading organic contaminants under visible light irradiation. The optimized composite catalyst with In2S3/BiOIO3 molar ratio of 0.5 (In2S3/BiOIO3-5) exhibited superior photocatalytic activity, achieving 98.6 % degradation rate for Rhodamine B (RhB), far surpassing the performance of the individual components. In addition, In2S3/BiOIO3-5 showed broad-spectrum photocatalytic activity in the decomposition of various organic pollutants including methyl orange (MO), methylene blue (MB), tetracycline (TC) and bisphenol A (BPA). The improved photocatalytic activity of the prepared composite catalysts can be ascribed to the formation of type-II heterojunction, which facilitates the separation and migration of e–/h+ pairs. The excellent photocatalytic properties and favorable structural stability make In2S3/BiOIO3-5 a viable material for degrading various persistent organic pollutants.
期刊介绍:
Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.