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Organic/inorganic Nanohybrid Membranes for Nanofiltration of Nonaqueous Solutions

Published online by Cambridge University Press:  11 February 2011

Toshinori Tsuru ,
Hiroyasu Kondo ,
Tomohisa Yoshioka  and
Masashi Asaeda
Toshinori Tsuru
Affiliation:
Department of Chemical Engineering, Hiroshima University Higashi-Hiroshima, 739–8527, JAPAN
Hiroyasu Kondo
Affiliation:
Department of Chemical Engineering, Hiroshima University Higashi-Hiroshima, 739–8527, JAPAN
Tomohisa Yoshioka
Affiliation:
Department of Chemical Engineering, Hiroshima University Higashi-Hiroshima, 739–8527, JAPAN
Masashi Asaeda
Affiliation:
Department of Chemical Engineering, Hiroshima University Higashi-Hiroshima, 739–8527, JAPAN
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Abstract

Silica/zirconia (SZ; Si/ Zr molar ratio = 9/1) membranes having pore sizes in the range of 1∼ 3 nm were prepared by the sol-gel process. Organic/ inorganic hybrid membranes were developed by modifying the surface of the silica-zirconia porous membranes via a gas-phase reaction with trimethylchlorosilane (TMCS) to give a surface that was modified with a monolayer of TMCS. Using nanopermporometry, it was found that the inner surface of membrane pores with diameters larger than several nms were successfully modified with TMCS. TMCS-modified membranes showed approximately the same permeability, Lp, irrespective of water concentration (10 and 100 ppm) in hexane. In contrast, an unmodified membrane, showed a decrease in Lp with increasing water concentration, which was pronounced at low permeation temperatures. This suggests that small amounts of water adsorbed to the inner surface of unmodified silica-zirconia membranes and blocked the permeation of hexane.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 752: Symposium AA – Membranes–Preparation, Properties and Applications , 2002 , AA8.8
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

Benes, N., Nijmeijer, A., Verweij, H., “Microporous silica membranes,” Kanellopoulos, N. K., ed., Recent Advances in Gas Separation by Microporous Ceramic Membranes, Elsevier Science, Amsterdam, pp. 335–372 (2000).Google Scholar
Bhanushali, D., Kloos, S., Kurth, C., Bhattacharyya, D., “Performance of solvent-resistant memranes for non-aqueous systems: solvent permeation results and modeling,” J. Membr. Sci., 189 (2001) 1.Google Scholar
Brinker, C. J. and Scherer, G. W., Sol-Gel Science, Academic press (1990).Google Scholar
Guizard, C., Ayral, A., and Julbe, A., “Potentiality of organic solvents filtration with ceramic membranes. A comparison with polymer membranes.“, Desalination, 147 (2002) 275.Google Scholar
Machado, D. R., Hasson, D., and Semiat, R., “Effect of solvent properties on permeate flow through nanofiltration membranes,” 166 (2000) 63.Google Scholar
Tsuru, T., Wada, S., Izumi, S., Asaeda, M., “Preparation of microporous silica-zirconia membranes for nanofiltration,” J. Membr. Sci., 149 (1998) 127.Google Scholar
Tsuru, T., Sudoh, T., Kawahara, S., Yoshioka, T. and Asaeda, M., “Permeation of liquids through inorganic nanofiltration membranes,” J. Colloid & Interface Sci., 228 (2000a) 292.Google Scholar
Tsuru, T., Izumi, S., Yoshioka, T., Asaeda, M., “Effect of temperature on transport performance of neutral solutes through inorganic nanofiltration membranes,” AIChE J., 46 (2000b) 565.Google Scholar
Tsuru, T., “Inorganic Porous Membranes for Liquid Phase Separation,” Separation and Purification Methods, 30 (2001a) 191.Google Scholar
Tsuru, T., Sudoh, T., Yoshioka, T., Asaeda, M., “Nanofiltration in non-aqueous solutions by inorganic porous membranes,” J. Membr. Sci., 185 (2001b) 253.Google Scholar
Tsuru, T., Hino, T., Yoshioka, T., Asaeda, M., “Permporometry Characterization of Microporous Ceramic Membranes,” J. Membr. Sci., 186 (2001c) 257.Google Scholar