A Vycor® Membrane with Reduced Size Surface Pores I. Preparation and Characterization

Springer Science and Business Media LLC - Tập 6 - Trang 25-31 - 1999
K. Beltsios1, G. Charalambopoulou1,2, G. Romanos1,2, N. Kanellopoulos1
1NCSR Demokritos, Institute of Physical Chemistry, Ag. Paraskevi Attikis, Greece
2Department of Chemical Engineering, NTUA, Zographou Athens, Greece

Tóm tắt

Vycor® membranes are surface-modified by a crosslinked commercial silicone which is subsequently subjected to oxygen plasma and converted to silica dioxide. Samples are examined by integral gas permeability of helium, nitrogen, methane and carbon dioxide, differential permeability of carbon dioxide and relative permeability of helium gas vs. water vapor. The modified surface is found to contain large micropores as well as a population of small nanopores. The new membrane may be appropriate for applications such as gas/vapor separations, reverse osmosis and the low molecular weight end of nanofiltration.

Từ khóa


Tài liệu tham khảo

T.H. Elmer, Ceramic Bulletin 57(11), 1051 (1978).

P.W. McMillan and C.E. Matthews, J. Mater. Sci. 11, 1187 (1978).

S. Kim and G.R. Gavalas, Ind. Eng. Chem. Res. 34, 168 (1995).

M. Tsapatsis and G. Gavalas, Journal of Membrane Science 87, 281 (1994).

Haraya, Y. Shindo, T. Hakuta, and H. Yoshitome, J. Chem. Engineering of Japan 19(3), 186–190 (1986).

K. Keizer, R.J.R. Uhlhorn, R. Van Vuren, and A. Burggraaf, Journal of Membrane Science 39, 285–300 (1988).

J. Paraszezak, E. Babish, R. McGouey, J. Heidenreich, M. Hatzakis, and J. Shaw, Microelectronic Engineering 6, 453 (1987).

A.G. Andreopoulos and M. Evangelatou, Journal of Biomaterials Applications 8, 344–360 (1994).

Van Der Voort, I. Gillis-D'Hamers, K.C. Vrancken, and Etienne F. Vansant, J. Chem. Soc. Faraday Trans. 87(24), 3899–3905 (1991).

A. Mitropoulos, P. Makri, N. Kanellopoulos, U. Keiderling, and A. Wiedenmann, J. Coll. Int. Sci. 193, 137–139 (1997).

F. Katsaros, T. Steriotis, A. Stubos, N. Kanellopoulos, and S. Tennnison, Microporous Materials 8, 171 (1997).

A. Mitropoulos, K. Beltsios, Th. Steriotis, F. Katsaros, P. Makri, and N. Kanellopoulos, The combination of equilibrium and dynamic methods for the detailed structural characterization of ceramic membranes, Journal of European Ceramic Society, 18: 1545–1558 (1998).

R. Ash, R.M. Barrer, and P. Sharma, Journal of Membrane Science 1, 17 (1976).

N. Kanellopoulos, J. Petropoulos, J. Chem. Soc., Faraday Trans. I79, 517 (1983).

K. Lee and S. Hwang, J. Coll. Int. Sci. 110(2), 544 (1986).

D. Nicholson, R. Gacknell, and N. Quirke, Langmuir 12, 4050 (1996).

E. Soterakou, K. Beltsios, G. Romanos, E. Goggolides, and N. Kanellopoulos, Vycor® and alumina membranes modified by Langmuir-Blodgett deposition, in preparation.

E. Magoulianiti, K. Beltsios, D. Davazoglou, G. Romanos, and N. Kanellopoulos, in Proceedings of the CVD-XIV International Conference on Chemical Vapor Deposition, edited by M. Allendorf and C. Bernard (The Electrochemical Society Inc., 1997).

S.J. Gregg and K.S.W. Sing, Adsorption, Surface Area and Porosity (Academic Press, London, 1982).

A. Mitropoulos, J. Haynes, R. Richardson, and N. Kanellopoulos, Phys. Rev. B 52, 10035 (1995).

Paul, C. Philipsen, F.J. Gerner, and H. Strathmann, Journal of Membrane Science 36, 363–372 (1988).

Kesting, SyntheticPolymeric Membranes: AStructuralPerspective, 2nd edition (Wiley-Interscience, New York, 1985).

M.J.D. Low and N. Ramasubramanian, Journal of Physical Chemistry 71(3), 730–737 (1967).

A.B. Shelekhin, S. Pien, and Y.H. Ma, Journal of Membrane Science 103, 39–43 (1995).

Thông tin
Thông tin xuất bản

Springer Science and Business Media LLC

Tập 6

25-31

Thông tin tác giả