Selective Adsorption of Phenol and Resorcinol from Aqueous Solution by Pectin/Poly (Acrylamide - Co-2-Acrylamido-2-Methyl -1-Propanesulfonic Acid) Chelating (PPAA) Hydrogels: Equilibrium, Kinetics, and Modeling

C. Raja Kumar ； G. Venkateswarlu ； J. Jaya Malathi ； T. Veera Reddy ； Y. Vijaya

《Journal of Innovative Technology》 3卷1期 (2021/03) Pp. 47-55

https://doi.org/10.29424/JIT.202103_3(1).0007

摘要

In this work, Pectin/Poly (acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonic acid) chelating (PPAA) hydrogels, a novel adsorbent was used for the adsorption of phenol and resorcinol systematically. Batch experiment studies showed that the removal efficiency of phenol and resorcinol by PPAA was influenced by pH, adsorbent dose, contact time and the concentrations of phenol and resorcinol solutions. Kinetics and isotherms at different concentrations were performed to evaluate the adsorption capacity. The PPAA adsorption capacity towards resorcinol was greater than phenol. The adsorbent was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Energy Dispersive X- ray Spectroscopy (EDX). The adsorption capacity of PPAA hydrogels calculated from the Langmuir model was found to be 80.64 mg/g and 86.20 mg/g for phenol and resorcinol respectively.

關鍵字

Adsorption ； PPAA hydrogels ； Phenol ； Resorcinol ； Isotherms ； Kinetics

參考文獻

Agarwal, S. and Rani, A. (2017). “Adsorption of resorcinol from aqueous solution onto CTAB/NaOH/flyash composites: Equilibrium, kinetics and thermodynamics.” Journal of Environmental Chemical Engineering, 5(1), 526-538.

Aghav, R.M., Kumar, S., and Mukherjee, S. N. (2011). “Artificial neural network modeling in competitive adsorption of phenol and resorcinol from water environment using some carbonaceous adsorbents.” Journal of hazardous materials, 188(1-3), 67-77.

Al-Malack, M.H. and Dauda, M. (2017). “Competitive adsorption of cadmium and phenol on activated carbon produced from municipal sludge.” Journal of environmental chemical engineering, 5(3), 2718-2729.

Bhuyan, M.M., Adala, O.B., Okabe, H., Hidaka, Y., and Hara, K. (2019). “Selective adsorption of trivalent metal ions from multielement solution by using gamma radiation-induced pectin-acrylamide-(2-Acrylamido-2-methyl-1-propanesulfonic acid) hydrogel.” Journal of Environmental Chemical Engineering, 7(1), 102844.

Changmai, M. and Purkait, M.K. (2017). “Kinetics, equilibrium and thermodynamic study of phenol adsorption using NiFe2O4 nanoparticles aggregated on PAC.” Journal of water process engineering, 16, 90-97.