Cobalt ferrite hollow spheres: synthesis by hydrothermal method and application as catalyst
PDF (Vietnamese)

How to Cite

1.
Kim Thư PT, Hòa LT. Cobalt ferrite hollow spheres: synthesis by hydrothermal method and application as catalyst. hueuni-jns [Internet]. 2020Mar.20 [cited 2024Dec.22];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)

References

  1. Cuong ND, Hoa TT, Khieu DQ, Lam TD, Hoa ND, Hieu NV. Synthesis, characterization, and comparative gas-sensing properties of Fe2O3 prepared from Fe3O4 and Fe3O4-chitosan. Journal of Alloys and Compounds. 2012;523:120-126.
  2. Eriksson S, Nylén U, Rojas S, Boutonnet M. Preparation of catalysts from microemulsions and their applications in heterogeneous catalysis. Applied Catalysis A: General. 2004;265(2):207-219.
  3. Kawahashi N, Persson C, Matijević E. Zirconium compounds as coatings on polystyrene latex and as hollow spheres. Journal of Materials Chemistry. 1991;1(4):577-582.
  4. Sun X, Li Y. Colloidal Carbon Spheres and Their Core/Shell Structures with Noble-Metal Nanoparticles. Angewandte Chemie International Edition. 2004;43(5): 597-601.
  5. Rafique MY, Pan L, Javed Q, Iqbal MZ, Yang L. Influence of NaBH4 on the size, composition, and magnetic properties of CoFe2O4 nanoparticles synthesized by hydrothermal method. Journal of Nanoparticle Research. 2012;14(10):1189.
  6. Nassar MY, Mohamed TY, Ahmed IS, Mohamed NM, Khatab M. Hydrothermally Synthesized Co3O4, α-Fe2O3, and CoFe2O4 Nanostructures: Efficient Nano-adsorbents for the Removal of Orange G Textile Dye from Aqueous Media. Journal of Inorganic and Organometallic Polymers and Materials. 2017;27(5):1526-1537.
  7. Houshiar M, Zebhi F, Razi ZJ, Alidoust A, Askari Z. Synthesis of cobalt ferrite (CoFe2O4) nanoparticles using combustion, coprecipitation, and precipitation methods: A comparison study of size, structural, and magnetic properties. Journal of Magnetism and Magnetic Materials. 2014;371:43-48.
  8. Kalam A, Al-Sehemi AG, Assiri M, Du G, Ahmad T, Ahmad I, Pannipara M. Modified solvothermal synthesis of cobalt ferrite (CoFe2O4) magnetic nanoparticles photocatalysts for degradation of methylene blue with H2O2/visible light. Results in Physics. 2018;8:1046-1053.
  9. Annie Vinosha P, Jerome Das S. Investigation on the role of pH for the structural, optical and magnetic properties of cobalt ferrite nanoparticles and its effect on the photo-fenton activity. Materials Today: Proceedings. 2018;5(2):8662-8671.
  10. Suwanboon S, Amornpitoksuk P. Preparation and characterization of nanocrystalline La-doped ZnO powders through a mechanical milling and their optical properties. Ceramics International. 2011;37 (8):3515-3521.
Creative Commons License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Copyright (c) 2020 Array