Isothermal and Kinetic Modeling for Uptake of Heavy Metal Ion from Aqueous Solution Using Succinylated Polysaccharide

Abstract Heavy metals are posing a serious threat to public health. Due to leaching and widespread use in chemical industries, their concentration is continuously increasing in fresh water reservoirs and industrial effluents. To address the severity of this issue, there is a dire need to devise the economic and environment friendly strategies to remove or decrease the concentration of heavy metals in water reservoirs. In the current research work, an economic and environment friendly polymer, succinylated microcrystalline cellulose (MCCS) is synthesized and modified for the adsorption of Cd(II) ions from aqueous solution. The sodium salt of MCCS (MCCSNa) shows good adsorption capacity for Cd(II) ions through ion‐exchange phenomenon. Isothermal modeling using different adsorption isotherms is investigated to check the spontaneity and understand the insight phenomenon of adsorption. Kinetic modeling of sorption phenomenon is performed to optimize the adsorption conditions for efficient removal of heavy metal ions. Moreover, regeneration capacity of the sorbent is also determined for its reuse to remove heavy metals.