Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received November 20, 2002
Accepted April 16, 2003

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Extraction of 2-Hydroxyphenol by Surfactant Coated Nanosized Magnetic Particles

Zan-guo Peng Kus Hidajat Mohammad Shahab Uddin^†

Department of Chemical & Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore

cheshahb@nus.edu.sg

Korean Journal of Chemical Engineering, September 2003, 20(5), 896-901(6), 10.1007/BF02697295

Download PDF

Abstract

A colloidal suspension of magnetic particles coated with double layer surfactant molecules was prepared, characterized and used for separation of some chemicals. The aqueous magnetic fluid was prepared by chemical precipitation method and characterized by total organic carbon analyzer (TOC), thermogravimetric analysis (TGA) and transmission electron microscopy (TEM). The TOC and TGA measurements indicate that the prepared magnetic particles are coated with surfactant molecules in double layers. The outer surfactant layer has free polar heads. TEM measurement results show that magnetic particles are nanosized. A mixture of 2-hydroxyphenol (strong polar) and 2-nitrophenol (weak polar) was chosen as the target system. Results show that the magnetic fluid can selectively adsorb 2-hydroxyphenol from the mixture, whereas the adsorption of 2-nitrophenol is insignificant. For 2-hydroxyphenol, the adsorption equilibrium can be described well by Langmuir isotherm, and the adsorption kinetic can be fitted well by a linear driving force mass transfer model.

Keywords

Nano-sized Magnetic Particles Bi-layer Surfactant Coating 2-Hydroxyphenol 2-Nitrophenol Adsorption Equilibrium Adsorption Kinetics

References

Akhavan M, Ghominezhad M, Mater. Manuf. Proc., 13, 821 (1998)
Bahaj AS, James PAB, Moeschler FD, Water Sci. Technol., 38, 311 (1998)
Berkovsky BM, Medvedev VF, Krakov MS, "Magnetic Fluids: Engineering Applications," Oxford University Press Inc., New York, U.S.A. (1993)
DeCuyper M, Joniau M, Langmuir, 7, 647 (1991)
Dekker RFH, Appl. Biochem. Biotechnol., 22, 289 (1989)
Diettrich O, Mill K, Johnson AW, Hasilik A, Winchester BG, Febs Lett., 441, 369 (1998)
Elmore WC, J. Phys. Rev., 54, 309 (1938)
Fendler JH, Korean J. Chem. Eng., 18(1), 1 (2001)
Haik Y, Pai V, Chen CJ, J. Magn. Magn. Mater., 194, 254 (1999)
Hancock JP, Kemshead JT, J. Immunol. Methods, 164, 51 (1993)
Honda H, Kawabe A, Shinkai M, Kobayashi T, Biochem. Eng. J., 3, 157 (1999)
Iwasaki I, Cooke SRB, Kim YS, SME-Trans., 223, 113 (1962)
Knox JH, "High Performance Liquid Chromatography," Edinburgh, Edinburgh University Press (1982)
Kondo A, Fukuda H, J. Ferment. Bioeng., 84(4), 337 (1997)
Levison PR, Badger SE, Dennis J, Hathi P, Davis MJ, Brue IJ, Schimkat D, J. Chromatogr. A, 816, 107 (1998)
Molday RS, Molday LL, Febs Lett., 170, 232 (1984)
O'Brien SM, Sloane RP, Thomas ORT, Dunnill P, J. Biotechnol., 54, 53 (1997)
Rosensweig RE, "Ferrohydrodynamics," Cambridge University Press, Cambridge, England (1985)
Rusetski AN, Ruuge EK, J. Magn. Mater., 85, 299 (1990)
Ruuge EK, Rusetski AN, J. Magn. Magn. Mater., 122, 335 (1993)
Shen LF, Laibinis PE, Hatton TA, Langmuir, 15(2), 447 (1999)
Shimoiizaka J, U.S. Patent, 4,094,804 (1978)
Uhlen M, Nature, 340, 733 (1989)
Waton JL, Li ZL, Proceeds. Eng. Flundation Conf., 183 (1999)
Wooding A, Kilner M, Lambrick DB, J. Colloid Interface Sci., 144, 236 (1991)