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- Title
Synthesis of Multicatalytic Nano-Magnetic Ceria with a Double in situ Hydrothermal Method for Phosphate Ions Removal and Peroxidase Mimicking.
- Authors
Honglin, Li; Zhaocheng, Li; Zeb, Akif; Sahar, Shafaq
- Abstract
A series of multicatalytic easily separable magnetic ceria (CeO2-CoFe2O4) nanocomposites were prepared with different content of CoFe2O4 by the in-house developed double in situ hydrothermal method. The crystal structure, morphology and magnetic properties of the samples were characterized in detail with the help of X-ray diffraction (XRD), scanning electron microscope (SEM) and vibrating sample magnetometer (VSM). XRD patterns showed that a small amount of CoFe2O4 did not affect the crystal structure of ceria, and CeO2-CoFe2O4 had typical characteristic peaks containing both ceria and CoFe2O4. SEM images show that CeO2-CoFe2O4 samples were in the form of uniform cubical structures with particle sizes within 20–50 nm. The VSM results demonstrated that the ferrimagnetic nature of CeO2-CoFe2O4 sample was obvious and sample saturation magnetization increased with the CoFe2O4 content. The samples with different content of CoFe2O4 were further used in phosphate ions adsorption and artificial enzyme applications. A newly developed hydrothermal method was used to prepare multicatalytic magnetic nano-ceria for phosphate ion adsorption and peroxidase mimicking applications. Easily recoverable magnetic nano-ceria was synthesized via newly developed double in situ hydrothermal method. High concentrations of phosphate ions were successfully removed from water. Magnetic nano-ceria also showed peroxidase mimicking properties.
- Subjects
PEROXIDASE; SYNTHETIC enzymes; CERIUM oxides; SCANNING electron microscopes; IONS; PHOSPHATES
- Publication
NANO, 2022, Vol 17, Issue 3, p1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292022500205