Cage-like magnetic CdS/MgFe2O4 S-scheme heterojunction material for photocatalytic decomposition of tetracycline hydrochloride

The cage-like CdS/MgFe 2 O 4 Step-scheme heterojunctions (S-scheme heterojunction) material was synthesized by loading CdS onto the surface of magnetic MgFe 2 O 4 . The crystal structure, morphology and properties of the catalyst were fully characterized, and the photocatalytic performance of the ca...

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Bibliographic Details
Published in:Journal of materials research 2024-05, Vol.39 (10), p.1562-1575
Main Authors: Ye, Hongyong, Du, Jia, Ding, Xin, Cai, Guozhong, Peng, Yunying, Fu, Yaxin, Zuo, Guangling
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Biomaterials
Cages
Catalysts
Chemistry and Materials Science
Crystal structure
Current carriers
Electric fields
Heterojunctions
Heterostructures
Inorganic Chemistry
Magnesium ferrites
Magnetic properties
Magnetic separation
Materials Engineering
Materials Science
Morphology
Nanotechnology
Photodegradation
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Summary:The cage-like CdS/MgFe 2 O 4 Step-scheme heterojunctions (S-scheme heterojunction) material was synthesized by loading CdS onto the surface of magnetic MgFe 2 O 4 . 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 2 O 4 is dominated by the cubic spinel structure of MgFe 2 O 4 with a hollow cage morphology. CdS and MgFe 2 O 4 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 2 O 4 to maintain an optimal redox potential. Compared with pure CdS and MgFe 2 O 4 , CdS/MgFe 2 O 4 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 2 O 4 . Graphical abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-024-01331-7