Preliminary Cesium Adsorption Study with a Unique Iron(III) Ferrocyanide/Vermiculite Nanocomposite via One-Pot Hydrothermal Synthesis

Akalın H. A., HİÇSÖNMEZ Ü.

Russian Journal of Physical Chemistry A, vol.96, no.10, pp.2173-2181, 2022 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 96 Issue: 10
  • Publication Date: 2022
  • Doi Number: 10.1134/s0036024422100028
  • Journal Name: Russian Journal of Physical Chemistry A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aquatic Science & Fisheries Abstracts (ASFA), Compendex
  • Page Numbers: pp.2173-2181
  • Keywords: adsorption, cesium, magnetic nanoparticles, nanocomposite, prussian blue, vermiculite
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

Abstract: A novel iron(III) ferrocyanide (Prussian blue)/vermiculite nanocomposite was synthesized, characterized and the cesium removal efficiency of the nanoadsorbent was investigated in this study. Characterization studies revealed that the nanocomposite was successfully produced and the saturation magnetization value was found as 0.15 emu/g. Low magnetization value was due to the low amount of Fe3O4 (magnetite). Adsorption isotherm studies confirmed that the process was in accordance with Langmuir, Freundlich, and D‒R (Dubinin–Radushkevich) isotherm models, suggesting that the reaction mechanism was both monolayer and multilayer, also had a physical sorption character with 0.0906 kJ/mol adsorption energy. Higher linear regression values obtained from Langmuir and D–R isotherms proved that chemical adsorption mechanism was more favorable than physical adsorption and the nanoadsorbent had 49.50 mg/g maximum adsorption capacity.