A study on the preparation and performance of a graphene-supported, Ce ion-doped, high-efficiency, magnetic TiO2 photocatalyst

A study on the preparation and performance of a graphene-supported, Ce ion-doped, high-efficiency, magnetic TiO2 photocatalyst

The preparation of a magnetic core-shell Z-scheme heterojunction Fe3O4@SiO2@TiO2-Ce/rGO composite material by sol–gel and hydrothermal methods is described. The catalytic activity of the composite photocatalyst doped with metal Ce and loaded with graphene is significantly improved. Under standard ex...

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Veröffentlicht in:Journal of Chemical Research 2022-02, Vol.46 (1)
Hauptverfasser: Cao, Weiyan, Liu, Xijun, Wang, Yuwei, Zhang, Yong, Fu, Congzhi
Format: Artikel
Sprache:eng
Schlagworte:
Catalytic activity
Composite materials
Graphene
Heterojunctions
Iron oxides
Magnetic cores
Methylene blue
Photocatalysts
Silicon dioxide
Sol-gel processes
Titanium dioxide
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Zusammenfassung:The preparation of a magnetic core-shell Z-scheme heterojunction Fe3O4@SiO2@TiO2-Ce/rGO composite material by sol–gel and hydrothermal methods is described. The catalytic activity of the composite photocatalyst doped with metal Ce and loaded with graphene is significantly improved. Under standard experimental conditions (pH = 7, [methylene blue] = 10 mg L−1, magnetic composite photocatalyst concentration = 0.1 g 50 mL−1), the Fe3O4@SiO2@TiO2-Ce/rGO composite photocatalyst lead to a maximum degradation of methylene blue of 98.2% in 120 min.
ISSN:1747-5198
2047-6507
DOI:10.1177/17475198211072812