Skip to main content
SpringerLink
Log in

Preparation and characterization of silica aerogels from diatomite via ambient pressure drying

  • Physical Chemistry of Surface Phenomena
  • Published:
Russian Journal of Physical Chemistry A Aims and scope Submit manuscript

Abstract

The silica aerogels were successfully fabricated under ambient pressure from diatomite. The influence of different dilution ratios of diatomite filtrate on physical properties of aerogels were studied. The microstructure, surface functional groups, thermal stability, morphology and mechanical properties of silica aerogels based on diatomite were investigated by BET adsorption, FT-IR, DTA-TG, FESEM, TEM, and nanoindentation methods. The results indicate that the filtrate diluted with distilled water in a proportion of 1: 2 could give silica aerogels in the largest size with highest transparency. The obtained aerogels with density of 0.122–0.203 g/m3 and specific surface area of 655.5–790.7 m2/g are crack free amorphous solids and exhibited a sponge-like structure. Moreover, the peak pore size resided at 9 nm. The initial aerogels were hydrophobic, when being heat-treated around 400°C, the aerogels were transformed into hydrophilic ones. The obtained aerogel has good mechanical properties.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. L. W. Hrubesh and J. F. Poco, J. Non-Cryst. Solids 188, 46 (1995).

    Article  CAS  Google Scholar 

  2. L. W. Hrubesh, J. Non-Cryst. Solids 225, 335 (1998).

    Article  CAS  Google Scholar 

  3. A. C. Pierre and G. M. Pajonk, Chem. Rev. 102, 4243 (2002).

    Article  CAS  Google Scholar 

  4. Q. Tang and T. Wang, J. Supercrit. Fluid 35, 91 (2005).

    Article  CAS  Google Scholar 

  5. L. W. Hrubesh, P. R. Coronado, and J. H. Satcher, J. Non-Cryst. Solids 285, 328 (2001).

    Article  CAS  Google Scholar 

  6. A. V. Rao, S. D. Bhagat, and H. Hirashima, J. Colloid. Int. Sci. 300, 279 (2006).

    Article  CAS  Google Scholar 

  7. Y. B. Zhang and Y. P. Ding, Mater. Manuf. Processes 26, 649 (2011).

    Article  CAS  Google Scholar 

  8. Y. Lu, J. F. Yang, W. Z. Lu, et al., Mater. Manuf. Processes 25, 998 (2010).

    Article  CAS  Google Scholar 

  9. S. D. Bhagat, Y. H. Kim, and M. J. Moon, Solid State Sci. 9, 628 (2007).

    Article  CAS  Google Scholar 

  10. S. D. Bhagat, Y. H. Kim, and Y. S. Ahn, Appl. Surf. Sci. 253, 3231 (2007).

    Article  CAS  Google Scholar 

  11. F. Shi, L. J. Wang, and J. X. Liu, Mater. Lett. 60, 3718 (2006).

    Article  CAS  Google Scholar 

  12. A. V. Rao, E. Nilsen, and M. A. Einarsrud, J. Non-Cryst. Solids 296, 165 (2001).

    Article  Google Scholar 

  13. P. B. Sarawade, J. K. Kim, A. Hilonga, et al., Micropor. Mesopor. Mater. 139, 138 (2011).

    Article  CAS  Google Scholar 

  14. S. Yugeswaran, Selvarajan, and L. Lusvarghi, Mater. Manuf. Processes 26, 813 (2011).

    Article  CAS  Google Scholar 

  15. L. J. Wang, S. Y. Zhao, and M. Yang, Mater. Chem. Phys. 113, 485 (2009).

    Article  CAS  Google Scholar 

  16. L. J. Wang, S. Y. Zhao, and J. Wuhan, Univ. Technol.-Mater. Sci. Ed. 24, 613 (2009).

    Article  CAS  Google Scholar 

  17. G. M. Gao, X. C. Xu, and H. F. Zou, Powder Technol. 202, 137 (2010).

    Article  CAS  Google Scholar 

  18. P. B. Sarawade, J. K. Kim, and H. K. Kim, Appl. Surf. Sci. 254, 574 (2007).

    Article  CAS  Google Scholar 

  19. H. Hoffmann, M. Meyer, and I. Zeitler, Colloids Surf. A: Physicochem. Eng. Aspects 291, 117 (2006).

    Article  CAS  Google Scholar 

  20. J. L. Gurav and A. V. Rao, J. Alloy Compd. 471, 296 (2009).

    Article  CAS  Google Scholar 

  21. X. C. Zhou, L. P. Zhong, and Y. P. Xu, Inorg. Mater. 44, 976 (2009).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Laboratory of Building Materials, Dalian University of Technology, Dalian, 116024, PR China

    Baomin Wang, Hainan Ma & Kai Song

Authors
  1. Baomin Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Hainan Ma
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Kai Song
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Baomin Wang.

Additional information

The article is published in the original.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wang, B., Ma, H. & Song, K. Preparation and characterization of silica aerogels from diatomite via ambient pressure drying. Russ. J. Phys. Chem. 88, 1196–1201 (2014). https://doi.org/10.1134/S0036024414070036

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0036024414070036

Keywords

Search

Navigation