-
Abstract
In this study, hydrogels and clay composite polymeric gel were synthesized by using AAm monomer and clay, EGDM as a crosslinker and APS-TEMED as initiator-activator system. The swelling properties of the hydrogels, water absorption (swelling) and shrinking (deswelling) kinetics, the equilibrium swelling ratios in water were investigated. In distilled water, swelling kinetics at 25 °C, deswelling kinetics at 80 °C and swelling behaviour at different temperatures of synthesized hydrogels were determined by gravimetric methods. Then, their adsorption properties such as adsorption capacities and adsorption efficiency of synthesized hydrogel and clay composit polymeric gel were investigated in case of their usage in removal of Astrazon Yellow (AY), Astrazon Golden Yellow (AGY), basic Blue 3 (BB3) aqueous solutions at 25 °C. At equilibrium the swelling values and the diffusion coefficient of AAM based clay composit polymeric gel was determined to be significantly decreased compared to AAm based hydrogel. It was determined that adsorption capacity and removal percentage for three dyes of clay composit polymeric gel was higher
Keywords
References
- Gong RM, Li M, Yang C, Sun YZ, Chen J. Removal of cationic dyes from aqueous solution by adsorption on peanut hull. J Hazard Mater 2005; 121: 247-250.
- Aksakal O, Ucun H. Equilibrium, kinetic and thermodynamic studies of the biosorption of textile dye (Reactive Red 195) onto Pinus sylvestris L. J Hazard Mater 2010; 181: 666-672.
- Dizge N, Aydiner C, Demirbas E, Kobya M, Kara S. Adsorption of reactive dyes from aqueous solutions by fly ash: Kinetic and equilibrium studies. J Hazard Mater 2008; 150:737-746.
- Dulman V, Cucu-Man SM. Sorption of some textile dyes by beech wood sawdust. J Hazard Mater 2009; 162: 1457-1464.
- Annadurai G. Ling, LY, Lee J.F. Adsorption of reactive dye from an aqueous solution by chitosan: isotherm, kinetic and thermodynamic analysis. Journal of Hazardous Materials 2008; 152: 337-346.
- Turgay O, Ersoz G, Atalay S, Forss J, Welander U. The treatment of azo dyes found in textile industry wastewater by anaerobic biological method and chemical oxidation. Sep Purif Technol 2011; 79: 26-33.
- Kim TH, Park C, Kim S. Water recycling from desalination and purification process of reactive dye manufacturing industry by combined membrane filtration. J Clean Prod 2005; 13: 779-786.
- Moghaddam SS, Moghaddam MRA, Arami M. Coagulation/flocculation process for dye removal using sludge from water treatment plant: Optimization through response surface methodology. J Hazard Mater 2010; 175: 651-657.
- Nataraj SK, Hosamani KM, Aminabhavi TM. Nanofiltration and reverse osmosis thin film composite membrane module for the removal of dye and salts from the simulated mixtures. Desalination 2009; 249: 12-17.
- Selen V, Özer D. Reactive Blue 19 Boyarmaddesinin Sulu Çözeltilerden Uzaklaştırılması, Fırat Univ. Journal of Science 2012; 24(2): 63-75.