Skip to main content
Log in

Synthesis and Characterizations of Hydroxy-aluminum Cross-Linked Montmorillonite

  • Published:
Journal of Thermal Analysis and Calorimetry Aims and scope Submit manuscript

Abstract

Cross-linked montmorillonite was prepared by reacting homoionic sodium form of bentonite (Na-M) from Istenmezeje (Hungary) with high molecular weight polyhydroxy-aluminum complex. The complex was prepared by controlled hydrolysis of alumina macrocation. The intercalated clay (Na-Al-M) was thermally treated to convert the hydroxy cations to oxide pillars. The pillared products were characterized by X-ray powder diffraction (XRD), Fourie transform infrared spectroscopy (FTIR), (thermogravimetry (TG), differential thermal analysis (DTA) and thermal analysis-mass spectrometry (TA-MS) methods. The specific surface area as well as pore size and pore structure distribution of samples were measured by nitrogen, water and carbon tetrachloride adsorption, and the heat of immersion was also determined. The pillared products were characterized by d(001) reflections of 19 Å, which is stable even at 500°C. The interaction of polymer alumina caused several changes in the obtained FTIR spectra due to the formation of different new bonds. The rate of dehydroxylation of the pillared product is very moderate, the water release occurred in different temperature ranges according to TA-MS results. Dehydration starts at interfaces and at the wall of pores, occurring nearly with uniform rate at 250-500°C. DTA curve indicates the formation of a new phase at 950°C. The obtained surface area of the pillared product by nitrogen adsorption becomes larger (208 m2 g-1) with respect to the non pillared clay, which decreases less than 10% upto 700°C. The pillared sample has a definite pore structure, the quantity of micropores (0-40 Å) decreased with increasing of macropores (>1000 Å). The obtained domestic pillared montmorillonite possesses a high degree of thermal stability and may be used as adsorbent.

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

Access this article

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. R. M. Barrer and D. M. MacLeod, Trans. Faraday Soc., 51 (1955) 1290.

    Article  CAS  Google Scholar 

  2. M. M. Mortland and V. Berkheiser, Clays and Clay Miner., 24 (1976) 60.

    CAS  Google Scholar 

  3. S. M. F. Traynor, M. M. Mortland and Th. J. Pinnivaia, Clays and Clay Miner., 26 (1978) 318.

    Google Scholar 

  4. G. W. Brindley and R. E. Semples, Clay Miner., 12 (1977) 229.

    CAS  Google Scholar 

  5. N. Lahav, V. Shani and J. Shabtai, Clays and Clay Miner., 26 (1978) 107.

    CAS  Google Scholar 

  6. Th. J. Pinnavaia, Science, 220 (1983) 365.

    CAS  Google Scholar 

  7. G. Johansson, Acta. Chem. Scand., 14 (1960) 771.

    Article  CAS  Google Scholar 

  8. I. Y. Bottero, I. M. Cases, F. Flessinger and I. E. Poirier, J. Phys. Chem., 84 (1980) 2933.

    Article  CAS  Google Scholar 

  9. J. Sterte and J. E. Otterstedt, Appl. Catal., 38 (1988) 131.

    Article  CAS  Google Scholar 

  10. M. L. Ocelli, J. Molecular Catalysis, 35 (1986) 377.

    Article  Google Scholar 

  11. R. C. Zielke and Th. J. Pinnavaia, Clays and Clay Miner., 36 (1988) 403.

    CAS  Google Scholar 

  12. I. V. Mitchell, 'Pillared layered structures, current trends and applications', Elsevier, London, 1990.

    Google Scholar 

  13. L. Michot and Th. J. Pinnavaia, Chem. Mater., 4 (1992) 1433.

    Article  CAS  Google Scholar 

  14. Y. Zhu, W. H. Gao and E. F. Vansant, J. Colloid Interface Sci., 171 (1995) 377.

    Article  CAS  Google Scholar 

  15. S. Aceman, N. Lahav and S. Yariv, J. Thermal. Anal., 50 (1997) 241.

    Article  CAS  Google Scholar 

  16. Dezsőfi, J. Rohonezy, M. Gábor and A. K. Galwey, In preparation.

  17. C. Farmer and J. D. Russel, Spectrochim. Acta, 26A (1964) 195.

    Google Scholar 

  18. C. Farmer, 1974) In: The infrared spectra of minerals, ed. V. C. Farmer, London, p. 331.

  19. S. Yamanaka, P. B. Malla and S. Komarneni, J. Colloid Interface Sci., 134 (1990) 51.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pöppl, L., Tóth, E., Tóth, M. et al. Synthesis and Characterizations of Hydroxy-aluminum Cross-Linked Montmorillonite. Journal of Thermal Analysis and Calorimetry 53, 585–596 (1998). https://doi.org/10.1023/A:1010114030106

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1010114030106

Navigation