Abstract
Mesoporous molecular sieves of silica, and alumina, and porous materials of titania, zirconia, and niobia were synthesized by cationic and/or neutral templating methods. These porous materials were characterized by powder X-ray diffraction, transmission electron microscopy, N2 adsorption-desorption isotherms and water adsorption-desorption isotherms. Mesoporous molecular sieves of silica with surface areas of 956 and 1072 m2/g and of alumina with surface area of 407 m2/g were synthesized. The Ti1 Zr and Nb oxide porous materials, however, showed smaller surface areas of 258, 178, and 77 m2/g, respectively, after calcination at 300°C and exhibited only small peaks for mesopores as determined by the pore-size. distributions.
Water adsorption-desorption isotherms of silica and alumina mesoporous molecular sieves showed Type V (weak interaction) and Type IV isotherms, respectively. The property of sudden filling of mesopores in theP/P 0 range of 0.45 to 0.55 in silica mesoporous molecular sieves with well-defined hysteresis during desorption, can be used in the design of humidity sensors. The titania, zirconia and niobia porous materials showed Type I water adsorption-desorption isotherms which suggests that these are mainly microporous. These results suggest that water adsorption-desorption isotherms provide valuable information about mesoporous molecular sieves for their potential use as humidity sensors.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
T. Yanagisawa, T. Shimizu, K. Kuroda, and C. Kato, Bull. Chem. Soc. Jpn.63, 988 (1990).
C.T. Kresge, M.E. Lenowicz, W.J. Roth, J.C. Vartuli, and J.S. Beck, Nature359, 710 (1992).
J.S. Beck, J.C. Vartuli, W.J. Roth, M.E. Leonowicz, C.T. Kresge, K.D. Schmitt, C.T.W. Chu, D.H. Olson, E.W. Sheppard, S.B. McCullen, J.B. Higgins, and J.L. Schlenker, J. Am. Chem. Soc.114, 10834 (1992).
A. Monnier, F. Schuth, Q. Huo, D. Kumar, D. Margolese, R.S. Maxwell, G.D. Stucky, M. Krishnamurthy, P. Petroff, A. Firouzi, M. Janicke, and B.F. Chemelka, Science261, 1299 (1993).
Q. Huo, D.I. Margolese, U. Ciesla, P. Feng, T.E. Gier, P. Sieger, R. Leon, P.M. Petroff, F. Schuth, and G.D. Stucky, Nature368, 317 (1994).
A. Firouzi, D. Kumar, L.M. Bull, T. Besier, P. Sieger, Q. Huo, S.A. Walker, J.A. Zasadzinski, C. Glinka, J. Nicol, D. Margolese, G.D. Stucky, and B.F. Chemelka, Science267, 1138 (1994).
Q. Huo, R. Leon, P.M. Petroff, and G.D. Stucky, Science268, 1324 (1995).
P.T. Tanev and T.J. Pinnavaia, Science267, 865 (1995).
P.T. Tanev and T.J. Pinnavaia, inAdvances in Porous Materials, edited by S. Komameni, D.M. Smith, and J.S. Beck, Mat. Res. Soc. Symp. Proc. (Pittsburgh, PA, 1995), vol. 371, p. 63.
S.A. Bagshaw, E. Prouzet, and T.J. Pinnavaia, Science 269, 1242 (1995).
K.M. Reddy, I. Moudrakovski, and A. Sayari, J. Chem. Soc. Chem. Commun.1059 (1994).
A. Corma, M.T. Navarro, and J. Pérez Pariente, J. Chem. Soc. Chem. Commun.147 (1994).
P.T. Tanev, M. Chibwe, and T.J. Pinnavaia, Nature368, 321 (1994).
C.-Y Chen, H.-X. Li, and M.E. Davis, Microporous Mater.2, 17 (1993).
P.J. Branton, P.G. Hall, M. Treguer, and K.S.W. Sing, J. Chem. Soc. Faraday Trans.91, 2041 (1995).
P Llewellyn, F. Schuth, Y Grillet, F Rouquerol, J. Rouquerol, and K.K. Unger, Langmuir11, 574 (1995).
E.P. Barrett, L.G. Joyner, and P.P. Halenda, J. Am. Chem. Soc.73, 373 (1951).
S. Yamanaka and S. Komameni, U.S. Patent 5,058,442, Oct. 22 (1991).
K.S.W. Sing, D.H. Everett, R.A.W. Haul, L. Moscou, R.A. Pierotti, J. Rouquerol, and T. Siemieniewska, Pure and Appl. Chem.57, 603 (1985).
P.B. Malla and S. Komameni, Mat. Res. Soc. Symp. Proc.233, 237 (1991).
P.B. Malla and S. Komameni, Zeolites15, 324 (1995).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Komarneni, S., Pidugu, R. & Menon, V.C. Water adsorption and desorption isotherms of silica and alumina mesoporous molecular sieves. J Porous Mater 3, 99–106 (1996). https://doi.org/10.1007/BF01186039
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01186039