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Hydroxyapatite/Carboxymethyl Cellulose Composite: Synthesis, Characterization, Kinetic, Thermodynamic Study for Removal of Cr (III)
Zahra Abbasi, Elham Ramezani, Abdolhadi Farrokhnia, Atefeh Sayadi Shahraki, Abd Ali Naseri,
Volume 3, Issue 1 (1-2021)
Abstract
In the present work nano-hydroxyapatite (n-HAp)/Carboxymethyl Cellulose (CMC) composite was synthesized. The n-HApCMC composite was tested for the adsorption of Chromium from aqueous solution and compared its removal capacity with nano-hydroxyapatite (n-HAp). Equilibrium data were fitted well in the Langmuir and Freundlich isotherm models. The thermodynamic analysis also established that the adsorption process was endothermic and spontaneous.
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