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Received November 2, 2004
Accepted January 10, 2005
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Adsorption of Acid Dyes Using Polyelectrolyte Impregnated Mesoporous Silica
School of Chemical and Biological Engineering, Seoul National University, San 56-1, Shillim-dong, Gwanak-gu, Seoul 151-742, Korea
Korean Journal of Chemical Engineering, March 2005, 22(2), 276-280(5), 10.1007/BF02701497
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Abstract
Cationic polyelectrolyte, PDDA (Poly(diallyldimethylammonium chloride)), was impregnated on mesoporous silica SBA-15 (PDDA/SBA-15) and amorphous conventional silica (PDDA/CS) supports. Acid dye adsorption characteristics, such as adsorption kinetics, adsorption isotherms, maximum adsorption capacity, and breakthrough curves of the prepared PDDA/SBA-15 and PDDA/CS adsorbents, were examined by batch and column adsorption techniques where the Acid Violet 17, Acid Red 44, and Acid Blue 45 were used as target adsorbates. PDDA/SBA-15 adsorbent showed fast adsorption kinetics of less than 10 min and much higher adsorption capacities compared to PDDA/CS due to large pore sizes, ordered cylindrical pore structures, and high amount of impregnated PDDA. Results from batch and column experiments showed that practical use of PDDA/SBA-15 adsorbent for effective removal of acid dyes from aqueous solution would be possible. Polyelectrolyte impregnation method was suggested as a simple method for the development of adsorbent with large pore diameters and efficient adsorption characteristics.
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Arslan I, Balcioglu IA, Dyes Pigment., 43, 95 (1999)
Forgacs E, Cserhati T, Oros G, Environ. Int., 30, 953 (2004)
Garg VK, Kumar R, Gupta R, Dyes Pigment., 62, 1 (2004)
Gulnaz O, Kaya A, Matyar F, Arikan B, J. Hazard. Mater., B108, 183 (2004)
Han S, Sohn K, Hyeon T, Chem. Mater., 12, 3337 (2000)
Jesionowski T, Colloids Surf. A: Physicochem. Eng. Asp., 222, 87 (2003)
Kang T, Park Y, Park JC, Cho YS, Yi J, Korean J. Chem. Eng., 19(4), 685 (2002)
Kim Y, Kim C, Kim P, Park JC, Yi J, "Porous-Alumina with Bimodal Pore Size Distribution as an Organic Adsorbent", Adsorption Science and Technology, ed. Lee, C., World Scientific, Singapore, pp. 605-609 (2003)
Nakagawa K, Namba A, Mukai SR, Tamon H, Ariyadejwanich P, Tanthapanichakoon W, Water Res., 38, 1791 (2004)
Park JC, Joo JB, Yi J, "Polyelectrolytes Impregnated Mesoporous Silica Adsorbents for the Adsorption of Anionic Dyes", Water Research, accepted (2005)
Park Y, Kang T, Cho YS, Park JC, Kim P, Yi J, Stud. Surf. Sci. Catal., 146, 637 (2003)
Rajeshwarisivaraj, Sivakumar S, Senthilkumar P, Subburam V, Bioresour. Technol., 80(3), 233 (2001)
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