Magnetic chitosan composite particles: Evaluation of thorium and uranyl ion adsorption from aqueous solutions

Combination of carboxymethyl chitosan-coated magnetic nanoparticles and chitosan-citrate complex gel beads as a novel magnetic adsorbent

“…Moreover, chemical modification of chitosan successfully improved the adsorption efficiency of magnetic nanoparticles (Hritcu, Humelnicu, Dodi, & Popa, 2012;Kuang, Wang, Liu, & Wu, 2013;Ren, Abbood, He, Peng, & Huang, 2013;Wang, Peng, Yang, Liu, & Hu, 2011;Zhu, Hu, & Wang, 2012). In this study, magnetic nanoparticles functionalized with a polyanion were prepared.…”

Neuro-fuzzy modeling to adsorptive performance of magnetic chitosan nanocomposite

“…In recent years, many researchers have worked to improve the chitosan adsorption performance by synthesis/modification of its derivatives [5,6,10]. In this regard, the magnetic chitosan composites have received attention due to the fact that they are low-cost materials and enable simple separation after the adsorption process [11][12][13]. For instance, several magnetic chitosan composites such as chitosan/Fe 3 O 4 [14][15][16], chitosan/Al 2 O 3 / Fe 3 O 4 [17,18], polyoxometalate-grafted chitosan/Fe 3 O 4 [19] and magnetic graphene/chitosan [8] have been reported as efficient adsorbent composites for the removal of organic pollutants.…”

Bionanocomposites for Magnetic Removal of Water Pollutants

“…From the studies on the adsorption kinetics and thermodynamics of Au(III) ions, it was found that the adsorption process obeyed the pseudo-second-order kinetic model [12]. Magnetic chitosan composites were used as sorbents for removal of radioactive species from aqueous medium [14,38,101]. Magnetic chitosan composite particles exhibited high adsorption capacity for both UO 2 (II) (666.67 mg/g) and Th(IV) (312.50 mg/g) and the authors conclude that the OH and -NH 2 groups were involved in this process [38].…”

“…Magnetic chitosan composites were used as sorbents for removal of radioactive species from aqueous medium [14,38,101]. Magnetic chitosan composite particles exhibited high adsorption capacity for both UO 2 (II) (666.67 mg/g) and Th(IV) (312.50 mg/g) and the authors conclude that the OH and -NH 2 groups were involved in this process [38]. In another study, Chen et al [14] evaluated the capacity of Fe 3 O 4 -chitosan beads to remove Sr(II) ions from aqueous solutions.…”