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.
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Abbreviations
- C:
-
concentration of 2-hydroxyphenol [mM]
- C0 :
-
initial concentration [mM]
- C* :
-
equilibrium concentration [mM]
- D:
-
diameter of magnetic particles [nm]
- D0 :
-
mean diameter of magnetic particles [nm]
- Ka :
-
equilibrium coefficient [mM-1]
- KLa:
-
overall mass transfer coefficient
- p(D):
-
probability frequency [dimensionless]
- Q:
-
adsorbed quantity [mmol/g solid]
- Qm :
-
maximum adsorbed quantity [mmol/g solid]
- S:
-
solid content of magnetic fluid [g]
- t:
-
time [min]
- V:
-
volume of the feed mixture [ml]
- Σ :
-
standard deviation of log-normal distribution
References
Akhavan, M. and Ghominezhad, M., “Synthesis and Characterization of Bilayer Ferrofluids”,Mater. Manuf. Proc,13, 821 (1998).
Bahaj, A. S., James, P. A. B. and Moeschler, F. D., “Wastewater Treat-ment by Biomagnetic Separation: A Comparison of Iron Oxide and Iron Sulphide Biomass Recovery”,Water Sci. Technol.,38, 311 (1998).
Berkovsky, B. M., Medvedev, V. F. and Krakov, M. S., “Magnetic Flu-ids: Engineering Applications”, Oxford University Press Inc., New York, USA (1993).
De Cuyper, M. and Joniau, M., “Mechanistic Aspects of the Adsorp-tion of Phospholipids onto Lauric Acid Stabilized Fe2C3Nanocol-loids”,Langmuir,7, 647 (1991).
Dekker, R. F. H., “Immobilization of a Lactase onto a Magnetic Sup-port by Covalent Attachment to Polyethyleneimine-Glutaraldehyde-Activated Magnetite”,Appl. Biochem. Biotechnol.,22, 289 (1989).
Diettrich, O., Mill, K., Johnson, A. W., Hasilik, A. and Winchester, B. G., “Application of Magnetic Chromatography to the Isolation of Ly-some from Fibroblasts of Patients with Lysosomal Storage Disor-ders”,FEBS Lett.,441, 369 (1998).
Elmore, W. C., “Ferromagnetic Colloid for Studying Magnetic Struc-tures”,J. Phys. Rev.,54, 309 (1938).
Fendler, J. H., “Colloid Chemical Approach to Nanotechnology”,Korean J. Chem. Eng.,18, 1 (2001).
Haik, Y., Pai, V. and Chen, C. J., “Development of Magnetic Device for Cell Separation”,J. Magn. Magn. Mater.,194, 254 (1999).
Hancock, J. P. and Kemshead, J. T., “A Rapid and Highly Selectively Approach to Cell Separations Using an Immunomagnetic Colloid”,J. Immunol. Methods,164, 51 (1993).
Honda, H., Kawabe, A, Shinkai, M. and Kobayashi, T., “Recovery of Recombinant Escherichia Coli by Chitosan Conjugated Magnetite”,Biochem. Eng. J.,3, 157 (1999).
Iwasaki, I., Cooke, S. R. B. and Kim, Y. S., “Some Surface Properties and Flotation Characteristics of Magnetite”,SME-Trans.,223, 113 (1962).
Knox, J. H., “High Performance Liquid Chromatography”, Edinburgh, Edinburgh University Press (1982).
Kondo, A. and Fukuda, H., “Preparation of Thermo-Sensitive Magnetic Hydrogel Microspheres and Application to Enzyme Immobiliza-tion”,J. Ferment. Bioeng.,84, 337 (1997).
Levison, P. R., Badger, S. E., Dennis, J., Hathi, P., Davis, M. J., Brue, I. J. and Schimkat, D., “Recent Development of Magnetic Beads for Use in Nucleic Acid Purification”,J. Chromatogr. A,816, 107 (1998).
Molday, R. S. and Molday, L. L., “Separation of Cells Labeled with Im-munospecific Iron Dextran Microspheres Using High Gradient Mag-netic Chromatography”,FEBS Lett.,170, 232 (1984).
O'Brien, S. M., Sloane, R. P., Thomas, O. R. T. and Dunnill, P., “Char-acterization of Nonporous Magnetic Chelator Supports and Their Use to Recover Polyhistidine-tailed T4 lysozyme from A CrudeE. coli Extract”,J. Biotechnoi.,54, 53 (1997).
Rosensweig, R. E., “Ferrohydrodynamics”, Cambridge University Press, Cambridge, England (1985).
Rusetski, A. N. and Ruuge, E. K., “Magnetic Fluid as a Possible Drug Carrier For Thrombosis Treatment”,J. Magn. Mater.,85, 299 (1990).
Ruuge, E. K. and Rusetski, A. N., “Magnetic Fluids as Drug Carriers: Targeted Transport of Drugs by a Magnetic Field”,J. Magn. Magn. Mater.,122, 335 (1993).
Shen, L. F., Laibinis, P. E. and Hatton, T. A., “Bilayer Surfactant Stabi-lized Magnetic Fluids: Synthesis and Interactions at Interfaces”,Lang-muir,15, 447 (1999).
Shimoiizaka, J., U.S. Patent, 4,094804 (1978).
Uhlen, M., “Magnetic Separation of DNA”,Nature,340, 733 (1989).
Waton, J. L. and Li, Z. L., “Application of Magnetic Forces to Enhance Solid-liquid Separation in the Metals Industry”,Proceeds. Eng. Foun-dation Conf., 183 (1999).
Wooding, A., Kilner, M. and Lambrick, D. B., “Studies of the Double Surfactant Layer Stabilization of Water-based Magnetic Fluids”,J. of Coll. Inter. Sci.,144, 236 (1991).
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Peng, Zg., Hidajat, K. & Shahabuddin, M. Extraction of 2-hydroxyphenol by surfactant coated nanosized magnetic particles. Korean J. Chem. Eng. 20, 896–901 (2003). https://doi.org/10.1007/BF02697295
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DOI: https://doi.org/10.1007/BF02697295