{"title":"Cage-like magnetic CdS/MgFe2O4 S-scheme heterojunction material for photocatalytic decomposition of tetracycline hydrochloride","authors":"","doi":"10.1557/s43578-024-01331-7","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>The cage-like CdS/MgFe<sub>2</sub>O<sub>4</sub> Step-scheme heterojunctions (S-scheme heterojunction) material was synthesized by loading CdS onto the surface of magnetic MgFe<sub>2</sub>O<sub>4</sub>. The crystal structure, morphology and properties of the catalyst were fully characterized, and the photocatalytic performance of the catalyst was investigated by photodegradation of tetracycline hydrochloride (TCH). The crystalline structure of CdS/MgFe<sub>2</sub>O<sub>4</sub> is dominated by the cubic spinel structure of MgFe<sub>2</sub>O<sub>4</sub> with a hollow cage morphology. CdS and MgFe<sub>2</sub>O<sub>4</sub> form a tight-binding S-scheme heterostructure, which can accelerate the recombination of ineffective charge carriers and promote the separation of the effective charge carriers via the internal electric field, enabling CdS/MgFe<sub>2</sub>O<sub>4</sub> to maintain an optimal redox potential. Compared with pure CdS and MgFe<sub>2</sub>O<sub>4</sub>, CdS/MgFe<sub>2</sub>O<sub>4</sub> is more effective on degradation of TCH. Moreover, magnetic separation, recovery, and recycling of the composite catalyst can be achieved without secondary contamination by using the magnetic properties of the CdS/MgFe<sub>2</sub>O<sub>4</sub>.</p> <span> <h3>Graphical abstract</h3> <p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/43578_2024_1331_Figa_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":"59 1","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Research","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1557/s43578-024-01331-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
The cage-like CdS/MgFe2O4 Step-scheme heterojunctions (S-scheme heterojunction) material was synthesized by loading CdS onto the surface of magnetic MgFe2O4. The crystal structure, morphology and properties of the catalyst were fully characterized, and the photocatalytic performance of the catalyst was investigated by photodegradation of tetracycline hydrochloride (TCH). The crystalline structure of CdS/MgFe2O4 is dominated by the cubic spinel structure of MgFe2O4 with a hollow cage morphology. CdS and MgFe2O4 form a tight-binding S-scheme heterostructure, which can accelerate the recombination of ineffective charge carriers and promote the separation of the effective charge carriers via the internal electric field, enabling CdS/MgFe2O4 to maintain an optimal redox potential. Compared with pure CdS and MgFe2O4, CdS/MgFe2O4 is more effective on degradation of TCH. Moreover, magnetic separation, recovery, and recycling of the composite catalyst can be achieved without secondary contamination by using the magnetic properties of the CdS/MgFe2O4.
期刊介绍：
Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome.
• Novel materials discovery
• Electronic, photonic and magnetic materials
• Energy Conversion and storage materials
• New thermal and structural materials
• Soft materials
• Biomaterials and related topics
• Nanoscale science and technology
• Advances in materials characterization methods and techniques
• Computational materials science, modeling and theory
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