Cobalt ferrite hollow spheres: synthesis by hydrothermal method and application as catalyst
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1.
Kim Thư PT, Hòa LT. Cobalt ferrite hollow spheres: synthesis by hydrothermal method and application as catalyst. hueuni-jns [Internet]. 2020Mar.20 [cited 2024Nov.23];129(1A):61-70. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/5643

Abstract

This paper describes the in situ synthesis of cobalt ferrite (CoFe2O4) using carbonaceous microspheres prepared from a glucose solution as a template, followed by subsequent heat treatment. The obtained material was characterized using energy-dispersive X-ray spectroscopy (EDX), scanning electrode microscope (SEM), vibrating sample magnetometer (VSM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen adsorption/desorption isotherms, and ultraviolet-visible spectroscopy (UV–Vis). The calcination of the precursor provides cobalt ferrite hollow spheres sized 300–400 nm with magnetic saturation of 59 eV. CoFe2O4 was used as a catalyst for rhodamine-B photocatalytic decomposition under visible light. The kinetics of rhodamine-B decomposition is also addressed.

https://doi.org/10.26459/hueuni-jns.v129i1A.5643
PDF (Vietnamese)

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