Title: ADSORPTION BEHAVIOUR OF MAGNESIUM FERRITE NANOPARTICLES SYNTHESIZED BY CO-PRECIPITATION AND COMBUSTION METHODS.
Authors: Kaur, Navneet; Kaur, Manpreet
Abstract: Adsorption of Cr (VI) from aqueous solution by magnesium ferrite (MgFe2O4) nanoparticles (NPs) synthesized by co-precipitation and combustion methods was studied using batch mode. The factors influencing adsorption viz. solution pH, adsorbent dose, contact time, initial metal ion concentration and temperature were ascertained. Cr (VI) content was estimated spectrophotometrically. The maximum adsorption of Cr (VI) ions was achieved at pH 2.0. Thermodynamic parameters such as change in Gibb's free energy (AG), enthalpy (AH) and entropy (AS) were evaluated. NPs synthesized by different methods displayed small variation in the percent removal although BET surface area of NPs showed significant differences. The equilibrium adsorption data were analyzed by the Freundlich, Langmuir and Dubinin-Radushkevich adsorption isotherm models.
Subjects: MAGNESIUM compounds; NANOPARTICLES; POLYETHYLENE glycol; HYDROGEN-ion concentration; ADSORPTION (Chemistry)
Publication: Agricultural Research Journal, 2017, Vol 54, Issue 1, p98
ISSN: 2395-1435
Publication type: Academic Journal
DOI: 10.5958/2395-146X.2017.00017.5

ADSORPTION BEHAVIOUR OF MAGNESIUM FERRITE NANOPARTICLES SYNTHESIZED BY CO-PRECIPITATION AND COMBUSTION METHODS.

Kaur, Navneet; Kaur, Manpreet