Effect of synthesis conditions on particle size of HMS

  • Hao Li (李 浩)
  • Hong Liu (刘 红)
  • Shi-qiang He (何世强)
Article
First Online:
Received:
Revised:

Abstract

HMS mesoporous molecular sieve was synthesized hydrothermally by using dodecylamine (DDA) as template and tetethylorthosilicalite (TEOS) as silicon source. The influence of the hydrothermal synthesis conditions on HMS particle size was studied systematically. The results showed that the smaller particle was obtained under the condition of DDA/SiO2=0.27, H2O/SiO2=66.7, EtOH/SiO2=6.5 mol and synthesis time of 18 h. The presences of additives (TW20, TW60, SP60 and Neopelex) also helped to the reduction of particle size. The HMS mesoporous molecular sieve with particle size around 60∼100 nm was obtained by using TW20 or TW60 as an additive. In addition, TEM image showed that HMS mesoporous molecular sieve with pariticle size about 20∼100 nm was synthesized in microemulsion.

Keywords

HMS mesoporous molecular sieve synthesis additive nanosized microemulsion 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Kresge C T, Leonowicz M E, Roth W J, et al. Ordered mesoporous molecular sieves synthesized by a liquid crystal template mechanism [J]. Nature, 1992, 359(10): 710–712.CrossRefADSGoogle Scholar
  2. [2]
    Tanev P T, Pinnavaia T J. A neutral templating route to mesoporous molecular sieves [J]. Science, 1995, 267(5199): 865–867.PubMedCrossRefADSGoogle Scholar
  3. [3]
    Meriaudeau P, Tuan V A, Lefebvre F, et al. Synthesis and characterization of SAPO-41: effect of the silicon content and the crystal size on the hydroisomerization of n-octane over Pt-Pd/SAPO-41 [J]. Microporous and Mesoporous Materials, 1998, 26(1–3): 161–173.CrossRefGoogle Scholar
  4. [4]
    Chao M C, Lin H P, Mou C Y, et al. Synthesis of nano-sized mesoporous silicas with metal incorporation [J]. Catalysis Today, 2004, 97(1): 81–87.CrossRefGoogle Scholar
  5. [5]
    Valtchev V, Faust A C, Lezervant J. Rapid synthesis of silicalite-1 nanocrystals by conventional heating [J]. Microporous and Mesoporous Materials, 2004, 68(1–3): 91–95.CrossRefGoogle Scholar
  6. [6]
    Gillers R, Torsten M, Bettina K C. Comparing synthesis routes to nano-crystalline zeolite ZSM-5 [J]. Microporous and Mesoporous Materials, 2003, 57(1): 83–92.CrossRefGoogle Scholar
  7. [7]
    Schmidt I, Madsen C, Jacobsen C J H. Confined space synthesis. A novel route to nanosized zeolites [J]. Inorganic Chemistry, 2000, 39(11): 2279–2283.PubMedCrossRefGoogle Scholar
  8. [8]
    Wang Bo, Ma Hong-zhu, Shi Qi-zhen. Synthesis of nanosized NaY zeolite by confined space method [J]. Chinese Chemical Letters, 2002, 13(4): 385–388 (in Chinese).ADSGoogle Scholar
  9. [9]
    Cuong P H, Gauthier W, Tessonnier J P, et al. BETA zeolite nanowire synthesis under nonhydrothermal conditions using carbon nanotubes as template [J]. Carbon, 2004, 42(10): 1941–1946.CrossRefGoogle Scholar
  10. [10]
    Zhu G S, Qiu S L, Gao F F, et al. Synthesis of aluminophosphate molecular sieve AlPO4-11 nanocrystals [J]. Microporous and Mesoporous Materials, 2001, 50(2–3): 129–135.CrossRefGoogle Scholar
  11. [11]
    Renzo F D. Zeolites as tailor-made catalysts: control of the crystal size [J]. Catal Today, 1998, 41(1): 37–40.CrossRefGoogle Scholar
  12. [12]
    Kumar P, Mittal K L. Handbook of microemulsion science and technology [M]. New York: Marcel Dekker, 1999.Google Scholar

Copyright information

© Shanghai University and Springer-Verlag GmbH 2009

Authors and Affiliations

  • Hao Li (李 浩)
    • 1
  • Hong Liu (刘 红)
    • 1
  • Shi-qiang He (何世强)
    • 1
  1. 1.School of Environmental and Chemical EngineeringShanghai UniversityShanghaiP. R. China

Personalised recommendations