Open AccessInvestigating the adsorption of cesiun ion (Cs+) on cobalt hexacyanoferrate coated magnetite nanoparticles
Author(s) -
Nguyễn Đình Trung,
Lê Thị Hà Lan,
Nguyen Thi Ngoc,
Nguyễn An Sơn
Publication year - 2020
Publication title -
khoa học và công nghệ: tự nhiên
Language(s) - English
Resource type - Journals
ISSN - 2588-106X
DOI - 10.32508/stdjns.v2i6.882
Subject(s) - adsorption , sorption , aqueous solution , ion exchange , nanoparticle , chemistry , freundlich equation , ion , langmuir , inorganic chemistry , precipitation , absorption (acoustics) , cobalt , magnetic nanoparticles , materials science , nanotechnology , organic chemistry , physics , meteorology , composite material
Co2[Fe(CN)6]/Fe3O4 nanoparticle adsorbent for ion cesium (Cs+) sorption was prepared by a chemical co-precipitation method. The magnetization of the materials makes them to be separated easyly from an aqueous solution by an external magnetic field. The ion Cs+ absorption by Co2[Fe(CN)6]/Fe3O4 nanoparticle follow the ion exchange mechanism, ion exchange capacity depends on the pH, the maximum ion exchange capacity of the material at pH = 4 is 0.40 meq (Cs+)/ g. After 15 min, about 98% of initial ion Cs+ concentration was removed from the solution, the adsorption could be described by Langmuir and Freundlich isotherms. The high adsorption capacity and good performance on other aspects, make the Co2[Fe(CN)6]/Fe3O4 nanoparticle a promissing adsorbent for the removal of ion Cs+ from water.