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Preparation of Nanoporous Silica Particles containing Various Pore Sizes from Silicic Acid by Spray Pyrolysis

분무열분해 공정에 의한 규산수용액으로부터 다양한 미세기공을 갖는 실리카 나노다공체 제조

  • Kim, Sun Kyung (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Lee, Chongmin (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Chang, Hankwon (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources) ;
  • Jang, Hee Dong (Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources)
  • 김선경 (한국지질자원연구원 자원활용연구센터) ;
  • 이총민 (한국지질자원연구원 자원활용연구센터) ;
  • 장한권 (한국지질자원연구원 자원활용연구센터) ;
  • 장희동 (한국지질자원연구원 자원활용연구센터)
  • Received : 2016.03.24
  • Accepted : 2016.09.18
  • Published : 2016.09.30

Abstract

Nanoporous $SiO_2$ particles containing different pore volume and size were prepared from silicic acid by a spray pyrolysis. The pore size, pore volume and particle size could be controlled with varying the precursor concentration, reaction temperature, and amount of organic templates such as Urea and poly ethylene glycol (PEG). The pore size distribution, pore volume and specific surface area of as-prepared particles were analyzed by BET and BJH methods, and the average particle sizes were measured by a laser diffraction method. The nanoporous $SiO_2$ particles ranged $0.6-0.9{\mu}m$ in diameter were successfully synthesized and the average particle size increased as the silicic acid concentration increased. The morphology of nanoporous $SiO_2$ particles was spherical and pores ranged 1 - 40 nm in diameter were measured in the particles. In case of Urea added into silicic acid, it showed no much difference in the morphology, pore size and pore volume at different Urea concentration. On the other hand, when PEG was added, it was clearly observed that pore diameter and pore volume of the particles surface increased with respect to PEG concentration.

Keywords

References

  1. Datka, J., Kukulska-Zajac, E., Kobyzewa, W. (2005). The activation of acetylene by $Cu^+$ ions in zeolites studied by IR spectroscopy, The activation of acetylene by Cu+ ions in zeolites studied by IR spectroscopy, Catalysis Today, 101, 123-129. https://doi.org/10.1016/j.cattod.2005.01.009
  2. Ehrman, S.H., Friedlander, S.K., Zachariah, M.R. (1998). Characteristics of $SiO_2/TiO_2$ nanocomposite particles formed in a premixed flat flame, Journal of Aerosol Science, 29, 687-706. https://doi.org/10.1016/S0021-8502(97)00454-0
  3. Giesche, H. (1994). Synthesis of monodispersed silica powders I. particle properties and reaction kinetics, Journal of the European Ceramic Society, Journal of the European Ceramic Society Journal of the European Ceramic SocietyJouJ14, 189-204. https://doi.org/10.1016/0955-2219(94)90087-6
  4. Holister, P., Roman, C., Harper, T. (2003). Nanoporous materials, Cientifica, 1, 15.
  5. Ishizaki, K., Komarneni, S., Nanko, M. (1998). Porous materials process technology and applications, Materials Technology Series.
  6. Jang, H.D. (2001). Experimental study of synthesis of silica nanoparticles by a bench-scale diffusion flame reactor, Powder Technology, 119, 102-108. https://doi.org/10.1016/S0032-5910(00)00407-1
  7. Jang, H.D., Chang, H., Suh, Y., Okuyama, K. (2006). Synthesis of $SiO_2$ nanoparticles from sprayed droplets of tetraethylorthosilicate by the flame spray pyrolysis, Current Applied Physics, 6, e110-e113. https://doi.org/10.1016/j.cap.2006.01.021
  8. Jokanovic, V., Spasic, A.M., Uskokovic, D. (2004). Designing of nanostructured hollow $TiO_2$ spheres obtained by ultrasonic spray pyrolysis, Journal of Colloid and Interface Science, 278, 342-352. https://doi.org/10.1016/j.jcis.2004.06.008
  9. Kawashita, M., Tsuneyama, S., Miyaji, F., Kokubo, T., Kozuka, H., Yamamoto, K. (2000). Antibacterial silver-containing silica glass prepared by sol-gel method, Biomaterials, 21, 393-398. https://doi.org/10.1016/S0142-9612(99)00201-X
  10. Kim, K.D., Choi, K.Y., Yang, J.W. (2005). Formation of spherical hollow silica particles from sodium silicate solution by ultrasonic spray pyrolysis method, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 254, 193-198.
  11. Kukulska-Zajac, E., Datka, J. (2008). The IR studies of the interaction of organic molecules with $Ag^+$ ions in zeolites, Microporous and Mesoporous Materials, 109, 49-57. https://doi.org/10.1016/j.micromeso.2007.04.030
  12. LeVier, R.R., Harrison, M.C., Cook, R.R., Lane, T.H. (1995). What is silicon, Journal of Clinical Epidemiology, 48, 513-517. https://doi.org/10.1016/0895-4356(94)00207-7
  13. Madler, L., Kammler, H.K., Mueller, R., Pratsinis, S.E. (2002). Controlled synthesis of nanostructured particles by flame spray pyrolysis, Journal of Aerosol Science, 33, 369-389. https://doi.org/10.1016/S0021-8502(01)00159-8
  14. Messing, G.L., Zhang, S.C., Jayanthi, G.V. (1993). Ceramic powder synthesis by spray-pyrolysis, Journal of the American Ceramic Society, 76, 2707-2726. https://doi.org/10.1111/j.1151-2916.1993.tb04007.x
  15. Park, J.H., Oh, C., Shin, S.I., Moon, S.K., Oh, S.G. (2003). Preparation of hollow silica microspheres in W/O emulsions with polymers, Journal of Colloid and Interface Science, 266, 107-114. https://doi.org/10.1016/S0021-9797(03)00645-3
  16. Pratsinis, S.E., Mastrangelo, S.V.R. (1989). Material synthesis in aerosol reactors, Chemical Engineering Progress, 85, 62-66.