Browse > Article
http://dx.doi.org/10.14478/ace.2017.1115

Preparation of Mesoporous Molecular Sieve by the Reaction of Na2SiO3 and H2SiF6 in the Presence of an Aqueous Nonionic Surfactant Solution  

Kim, Jin-Yeong (Department of Chemical and Biomolecular Engineering, Chonnam National University)
Kwon, Oh-Yun (Department of Chemical and Biomolecular Engineering, Chonnam National University)
Publication Information
Applied Chemistry for Engineering / v.29, no.1, 2018 , pp. 122-126 More about this Journal
Abstract
Mesoporous molecular sieves were prepared by the reaction of $Na_2SiO_3$ and $H_2SiF_6$ using nonionic micelle templates in an aqueous solution. Well-crystalline mesoporous molecular sieves were obtained after several seconds at atmospheric conditions. Powder samples exhibited d-spacing of 3.8-5.1 nm with the sharpness of the d00l peak, showing well-crystalline mesoporous molecular sieves, pore size distributions of 2.5-3.1 nm and large specific surface areas of $290-1,018m^2/g$, depending on types of surfactants. SEM images of samples showed well-divided spherical particles with an uniform size of ${\sim}0.5{\mu}m$ and TEM images demonstrated uniform pores with a worm hole shape.
Keywords
nonionic surfactant; mesoporous material; sodium silicate; fluorosilisic acid;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Y. Kang, W. Shan, J. Wu, Y. Zhang, X. Wang, W. Yang, and Y. Tang, Uniform nanozeolite microspheres with large secondary pore architecture, Chem. Mater., 18, 1861-1866 (2006).
2 C. T. Kresge, M. E. Leonowicz, W. J. Roth, J. C. Vartuli, and J. S. Beck, Ordered mesoporous molecular sieves synthesized by a lquid-crystal template mechanism, Nature, 359, 710-712 (1992).
3 J. S. Beak, J. C. Vartuli, W. J. Roth, and M. E. Leonowicz, A new family of mesoporous molecular sieves prepared with liquid crystal templates, J. Am. Chem. Soc., 114, 10834-10843 (1992).
4 J. S. Beck, J. C. Vartuli, G. S. Kennedy, C. T. Kresge, W. J. Roth, and S. E. Schramm, Molecular or supramolecular templating: Defining the role of surfactant chemistry in the formation of microporous and mesoporous molecular sieves, Chem. Mater., 6, 1816-1821 (1994).
5 Q. Huo, R. Leon, P. M. Petroff, and G. D. Stucky, Mesostructure design with gemini surfactants: Supercage formation in a three-dimensional fexagonal array, Science, 268, 1324-1327 (1995).
6 D. Zhao, J. Feng, Q. Huo, N. Melosh, G. H. Fredrickson, B. F. Chmelka, and G. D. Stucky, Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores, Science, 279, 548-552 (1998).
7 P. T. Tanev and T. J. Pinnavaia, A neutral templating route to mesoporous molecular sieves, Science, 267, 865-867 (1995).
8 R. Ryoo, J. M. Kim, C. H. Ko, and C. H. Shin, Disordered molecular sieve with branched mesoporous channel network, J. Phys. Chem., 100, 17718-17721 (1996).
9 S. Inagaki, S. Ogata, Y. Goto, and Y. Fukushima, Mesoporous materials derived from layered silicates and the adsorption properties, Stud. Surf. Sci. Catal., 117, 65-76 (1998).
10 S. H. Joo, S. J. Choi, I. Oh, J. Kwak, Z. Liu, O. Terasaki, and R. Ryoo, Ordered nanoporous arrays of carbon supporting high dispersions of platinum nanoparticles, Nature, 412, 169-172 (2001).
11 J. Lee, K. Sohn, and T. Hyeon, Fabrication of novel mesocellular carbon foams with uniform ultralarge mesopores, J. Am. Chem. Soc., 123, 5146-5147 (2001).
12 P. T. Tanev and T. J. Pinnavaia, A neutral templating route to mesoporous molecular sieves, Science, 267, 865-867 (1995).
13 S. A. Bagshaw, E. Prouzet, and T. J. Pinnavaia, Templating of mesoporous molelar sieves by nonionic polyethylene oxide surfactants, Science, 269, 1242-1244 (1995).
14 O. Y. Kwon, S. W. Kim, and S. W. Choi, Synthesis of mesoporous molecular sieves: Hydrolysis of H2SiF6 by a nonionic polyethyleneoxide surfactant template, Microporous Mesoporous Mater., 27, 255-259 (1999).
15 Z. Luan, H. He, W. Zhou, and J. Klinowski, Transformation of lamellar silicate into the mesoporous molecular sieve MCM-41, J. Chem. Soc. Faraday Trans., 94, 979-983 (1998).
16 S. Y. Jeong, J. K. Suh, J. M. Lee, and O. Y. Kwon, Preparation of silica-based mesoporous materials from fluorosilicon compound: Gelation of HSiF in ammonia surfactant solution, J. Colloid Interface Sci., 192, 156-161 (1997).
17 O. Y. Kwon, S. Y. Jeong, J. K. Suh, S. W. Choi, and J. M. Lee, Synthesis of mesoporous molecular sieves from fluorosilicon compound ($H_2SiF_6$), Bull. Korean Chem. Soc., 18, 663-665 (1997).
18 F. H. P. Silva and H. O. Pastore, The syntheses of mesoporous molecular sieves in fluoride medium, Soc., J. Chem. Soc., Chem. Commun., 7, 833-834 (1996).
19 R. K. Iller, The Chemistry of Silica: Solubility, Polymerization, Colloid and Surface Properties, and Biochemistry, 192-193, Wiley-Interscience, NY, USA (1979).