JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Synthesis of Spherical MCM-48 with the Molar Ratio of Surfactant and Silica
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Synthesis of Spherical MCM-48 with the Molar Ratio of Surfactant and Silica
Lee, Ha-Young; Park, Sang-Won;
  PDF(new window)
 Abstract
Mesoporous silica was prepared from hydrothermal synthesis using gel mixture of tetraethylorthosilcate (TEOS) as silica source and cetyltrimethylammonium bromide (CTMABr) as a surfactant. In the optimum synthesis cause, molar ratio of template and silica changed. The surface and structure properties of mesoporous silica were determined by XRD, SEM, TEM and BET. Also, surface potential of mesoporous silica was measured using zeta potential. adsorption isotherm characteristics, including the specific surface area (), total pore volume ), and average pore diameter (), were determined by BET. As a result, SBET of was determined from the adsorption isotherm. Also, the average pore diameter was 2 nm∼4 nm. Mesoporous silica's surface potential of minus charge was determined from zeta potential.
 Keywords
Mesoporous silica;MCM-48;Zeta potential;Pb;Cd;
 Language
Korean
 Cited by
 References
1.
Beck, J. S., Vartuli, J. C., Roth, W. J., Lenowicz, M. E., Kresge, C. T., Schmitt, K. D., Chu, C. T. W., Olsen, D. H., Sheppard E. W., McCullen, S. B., Higgins, J. B., Schlenker, J. L., 1992, A new family of mesoporous molecular sieves prepared with liquid crystal templates, J. Am. Chem. Soc., 114, 10834-10843. crossref(new window)

2.
Brown, J., Mencier L., Pinavaia, T. J., 1999, Selective adsorption of $Hg^{2+}$ by thiol-functionalized nanoporous silica, Chem. Commun., 1, 69-70.

3.
Corma, A., Martinez, A., Martines-Soria, V., Monton, J. B., 1995, Hydrocracking of vacuum gasoil on the novel mesoporous MCM-41 aluminosilicate catalyst, J. Catal., 153, 25-31. crossref(new window)

4.
Firouzi, A. D., Kumar, D., Bull, L. M., Besier, T., Sieger, P., Huo, Q,. Walker, S. A., Zasadzinski, J. A., Glinka, C., Nicol, J., Margolese, D., Stucky, G. D., Chmelka, B. F., 1995, Cooperative organization of inorganic- surfactant and biomimetic assemblies, Science, 267, 1138-1143. crossref(new window)

5.
Hitz, S., Prin, R. S., 1997, Influence of template extraction on structure, activity, and stability of MCM-41 catalysts, J. Catal., 168, 194-206. crossref(new window)

6.
Luan, Z., Cheng, C. F., Zhou, W., Klinowski, J., 1995, Mesopore molecular sieve MCM-41 containing framework aluminum, J. Phys. Chem., 99, 1018-1024. crossref(new window)

7.
Sayari, A., 1996, Periodic mesoporous materials: synthesis, characterization and potential applications, Stud. Surf. Sci. Catal., 102, 1-46. crossref(new window)

8.
Schuth, S., Janicke, M., Schuth, F., 1998, Modeling x-ray patterns and TEM Images of MCM-41, Microporous Mesoporous Mater., 22, 485-493. crossref(new window)

9.
Tanev, P. T., Pinnavaia, T. J., 1996, Mesoporous silica molecular sieves prepared by ionic and neutral surfactant templating: A Comparison of Physical Properties, Chem. Mater., 8, 2068-2079. crossref(new window)

10.
Zhao, X. S., Lu, G. Q., Graeme, Miller J., 1996, Advances in mesoporous molecular sieve MCM-41, Ind. Eng. Chem. Res, 35, 2075-2090. crossref(new window)