TITLE:
Adsorption of Fe(III) from Aqueous Solution by Linde Type-A Zeolite
AUTHORS:
Saeedeh Hashemian, Seyed Hossein Hosseini, Hamila Salehifar, Khaterah Salari
KEYWORDS:
Adsorption; LTA Zeolite; Sodium Metasilicate; Fe(III) Removal
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.4 No.7A,
July
12,
2013
ABSTRACT: Linde Type-A (LTA) zeolite was prepared from sodium
aluminate and sodium metasilicate by hydrothermal process precursors. Sodium
metasilicate prepared from molten NaOH and SiO2. The zeolite
was characterized by FTIR, XRD, XRF and SEM. The adsorption of Fe(III) from
aqueous solution by zeolite A was studied. Different parameters like contact
time, pH and concentration of iron were investigated. The results show that at
contact time of 60 min and pH of 6 maximum adsorption of iron onto zeolite was observed. The kinetic data was analyzed using pseudo-first-order and
pseudo-second-order kinetic models. The adsorption kinetics of Fe(III) were
fitted well with the pseudo-second-order kinetic model.