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Sorptive Interaction of Oxyanions with Iron Oxides: A Review
Haleemat Iyabode Adegoke1, Folahan Amoo Adekola1, Olalekan Siyanbola Fatoki2, Bhekumusa Jabulani Ximba2
1Department of Chemistry, University of Ilorin P.M.B. 1515, Ilorin, Nigeria
2Department of Chemistry, Faculty of Applied Sciences, Cape Peninsula University of Technology,
P.O. Box 652, Cape Town, South Africa
Pol. J. Environ. Stud. 2013;22(1):7–24
points of zero charge
Iron oxides are a group of minerals composed of Fe together with O and/or OH. They have high points of zero charge, making them positively charged over most soil pH ranges. Iron oxides also have relatively high surface areas and a high density of surface functional groups for ligand exchange reactions. In recent time, many studies have been undertaken on the use of iron oxides to remove harmful oxyanions such as chromate, arsenate, phosphate, and vanadate, etc., from aqueous solutions and contaminated waters via surface adsorption on the iron oxide surface structure. This review article provides an overview of synthesis methods, characterization, and sorption behaviours of different iron oxides with various oxyanions. The influence of thermodynamic and kinetic parameters on the adsorption process is appraised.
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Adsorption and Hydrolysis Characteristics of Antibiotics in the Hyporheic Zone of Zaohe-Weihe River, China
The Feasibility of Heavy Metals Removal from Drinking Water Sources Containing Sulfide Ions by Pillared White Sand of Different Grains Size
Preparation of Multi-Group Magnetic Biochar (MMBC) and Its Mechanism for Adsorption of Pb(II) in Aqueous Solution
Study on Adsorption Characteristics of Heavy Metal Cd2+ by Biochar Obtained from Water Hyacinth
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