Abstract
Abstract Mesoporous α-Fe2O3 was prepared by the precipitation method using cellulose nanocrystals (CNC) as template, and its performance on adsorption of phosphate from aqueous solution was investigated. The nitrogen adsorption characterization confirmed that the prepared α-Fe2O3 possessed mesoporous structure, and its specific surface area and pore volume of sample were 106.9 m2·g−1 and 0.4984 cm3·g−1, respectively. The effect of adsorption process parameters such as initial concentration of phosphate, adsorption time, pH, and ionic strength on phosphate removal was studied. The adsorption data were analyzed using different isotherm and kinetic models. The results showed that the Freundlich models and pseudo-second-order model fitted the experimental data well.
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