Preparation of magnetic Fe3O4@Cu/Ce microspheres for efficient catalytic oxidation co-adsorption of arsenic(III)

Magnetic Fe 3 O 4 @Cu/Ce microspheres were successfully prepared by one-step solvothermal approach and further utilized to remediate toxic arsenic (As(III)) pollution. The effects of Cu/Ce elements co-doping on the crystal structure, catalytic oxidation and adsorption behaviors of magnetic microsphe...

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Bibliographic Details
Published in:Journal of Central South University 2020-04, Vol.27 (4), p.1176-1185
Main Authors: Jin, Lin-feng, Chai, Li-yuan, Song, Ting-ting, Yang, Wei-chun, Wang, Hai-ying
Format: Article
Language:English
Subjects:
Adsorption
Arsenic
Catalytic oxidation
Crystal defects
Crystal structure
Engineering
Grain size
Hydroxyl groups
Iron oxides
Lattice vacancies
Metallic Materials
Microspheres
Oxidation
Oxidizing agents
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Summary:Magnetic Fe 3 O 4 @Cu/Ce microspheres were successfully prepared by one-step solvothermal approach and further utilized to remediate toxic arsenic (As(III)) pollution. The effects of Cu/Ce elements co-doping on the crystal structure, catalytic oxidation and adsorption behaviors of magnetic microspheres were researched systematically. The results showed that with the aid of Cu/Ce elements, the grain size reduced, lattice defects increased, and the oxygen vacancies and surface hydroxyl groups were improved. Therefore, Cu/Ce elements endowed magnetic Fe 3 O 4 @Cu/Ce microspheres with excellent As(III) removal performance, whose maximum adsorption capacity reached 139.19 mg/g. The adsorption mechanism mainly involved catalytic oxidant co-adsorption. This research developed a feasible strategy for the preparation of high efficiency magnetic adsorbent to enhance the removal of As(III).
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-020-4358-2