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One-pot synthesis of superparamagnetically modified zeolite chabazite for removal of Cs+ from radioactively contaminated water

Authors :
Azusa Ito
Mohamed Karmaoui
Gnanavel Thirunavukkarasu
Joseph A. Hriljac
Source :
APL Materials, Vol 11, Iss 4, Pp 041105-041105-9 (2023)
Publication Year :
2023
Publisher :
AIP Publishing LLC, 2023.

Abstract

Composites of sodium-exchanged zeolite chabazite particles with attached superparamagnetic nanoparticles of Fe3O4 and CoFe2O4 ferrite spinels have been produced using a novel solvothermal route. These have been characterized by a combination of techniques, including powder x-ray diffraction, x-ray fluorescence spectroscopy, vibrating sample magnetometry, and both scanning and transmission electron microscopy. These confirm the nature of the attached nanoparticles, and the microscope images show a good dispersion of nanoparticles with a narrow size range deposited uniformly on the surface of the zeolite particles. The magnetization is of sufficient strength to allow magnetic separation from a solution. Both time and pH dependent Cs uptake experiments show that the magnetized systems are still excellent for the rapid uptake of Cs via an ion exchange process with no reduction in property due to the attached nanoparticles.

Details

Language :
English
ISSN :
2166532X
Volume :
11
Issue :
4
Database :
Directory of Open Access Journals
Journal :
APL Materials
Publication Type :
Academic Journal
Accession number :
edsdoj.436f853ed3804b779d48309512c7e2bd
Document Type :
article
Full Text :
https://doi.org/10.1063/5.0139282