Adsorptive Characteristics of Chromium(VI) Ions from Aqueous Phase by Iron(III) Coordinated Amino-Functionalized Poly(glycidyl methacrylate)-Grafted Cellulose: Equilibrium Kinetics and Thermodynamic Study

摘要: A novel sorbent, Iron(III)-coordinated amino-functionalized poly(glycidyl methacrylate)-grafted cellulose (Fe(III)-AM-PGMACell), was prepared through graft copolymerization of glycidyl methacrylate (GMA) onto (Cell) in the presence N,N′-methylenebisacrylamide (MBA) as a cross linker using benzoyl peroxide initiator, followed by treatment with ethylenediamine and ferric chloride HCl. The surface features adsorbent were characterized FTIR, XRD, SEM, N2 adsorption, potentiometric titration. contact time to attain equilibrium pH value for maximum adsorption found be 90 min 4.0, respectively. two-step pseudo-first-order kinetic model agreed well dynamic behavior process. Equilibrium data fitted Langmuir, Freundlich, Sips isotherm equations latter giving best fit experimental capacity 72.05 mg/g at 30°C. simulated industry wastewater s...