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Journal Title
Title of Journal: Water Air Soil Pollut
Abbravation: Water, Air, & Soil Pollution
Publisher
Springer Netherlands
DOI
10.1007/978-3-662-48453-1
ISSN
1573-2932
CoII adsorption on highpurity amorphous Fe–Mn binary oxide adsorbent was investigated The CoII adsorption behavior of this synthetic material was studied and discussed as a function of contact time pH and initial concentration The Langmuir and Freundlich isotherm models were applied to fit the CoII adsorption data on Fe–Mn binary oxide with mesoporous particles of irregular surface morphology and a specific surface area of 2018 m2 g−1 with a maximum capacity of 3225 mg g−1 Various kinetic models applied to the adsorption rate data of the CoII ion were evaluated The results show that the pseudosecond order and the intraparticle mass transfer diffusion models correlated best with the experimental rate data The adsorption activation energy was found to be 907 kJ mol−1 indicating that it corresponds to a physical adsorption The evaluated thermodynamics parameters of the adsorption values indicated the endothermic and spontaneous nature of the adsorption The results obtained confirmed that Fe–Mn binary oxide had the potential to be utilized as a lowcost and relatively effective adsorbent for CoII removal from wastewater