Kinetics and thermodynamics of Mo(VI) and Re(VII) sorption on amino-functionalized magnetic polymer

Abstract

Kinetics and thermodynamics of Mo(VI) and Re(VII) sorption onto amino functionalized magnetic poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [mPGME-deta] at 298 K and pH=4.0 were investigated. It was shown that Mo(VI) and Re(VII) sorption obeys the pseudo-second-order model with evident influence of pore diffusion. The maximum sorption capacity of 60 mg/g for Mo(VI) and 47 mg/g for Re(VII) were observed. Thermodynamic studies implied an endothermic and spontaneous process in nature