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Preparation and characterization of Ti-pillared acid-activated clay catalysts

Published online by Cambridge University Press:  09 July 2018

J. Bovey ,
F. Kooli  and
W. Jones
J. Bovey
Affiliation:
Department of Chemistry, Cambridge University, Lensfield Road, Cambridge, CB2 1EW, UK
F. Kooli
Affiliation:
Department of Chemistry, Cambridge University, Lensfield Road, Cambridge, CB2 1EW, UK
W. Jones
Affiliation:
Department of Chemistry, Cambridge University, Lensfield Road, Cambridge, CB2 1EW, UK
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Abstract

The preparation and characterization of Ti-pillared acid-activated clays (designated Ti PAACs) and conventional Ti-pillared clays (designated Ti PILCs) are described. Preliminary catalytic results show that these materials possess remarkably enhanced abilities to catalyse the dehydration of pentanol compared with their Al counterparts (in excess of 200% in the case of the PILCs and up to 82% for the PAACs). These activities approach those previously reported for non-pillared acid-activated clays.

Type
Research Article
Information
Clay Minerals , Volume 31 , Issue 4 , December 1996 , pp. 501 - 506
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1996

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References

Baksh, M.S., Kikkinides, E.S. & Yang, R.T. (1992) Characterization by physisorption of a new class of microporous adsorbents: pillared clays. Ind. Eng. Chem. Res. 31, 2181–2189.CrossRefGoogle Scholar
Bernier, A., Admaiai, L.F. & Grange, P. (1991) Synthesis and characterization of titanium pillared clays, influence of the temperature of preparation. Appl. Cat. 77, 269–281.Google Scholar
Bovey, J. (1996) Modified layered silicates as acid catalysts. PhD thesis, Univ. Cambridge, UK.Google Scholar
Bovey, J., Fowles, E., Jones, W., Mokaya, R. & Davies, M.E. (1995) GB Patent No. PCT/GB94/02480. Google Scholar
Bovey, J. & Jones, W. (1995) Characterization of Al-pillared acid-activated clay catalysts. J. Mater. Chem. 5, 2027–2035.Google Scholar
Breen, C. (1991) Thermogravimetric study of the desorption of cyclohexylamine and pyridine from an acid-treated Wyoming bentonite. Clay Miner. 26, 473–486.CrossRefGoogle Scholar
Breen, C., Madejová, J. & Komadel, P. (1995) Characterization of moderately acid-treated, sizefractionated montmorillonite using IR and MAS NMR spectroscopy and thermal analysis. J. Mater. Chem. 5, 469–474.CrossRefGoogle Scholar
Figueras, F. (1988) Pillared clays as catalysts. Catal. Rev., Sci. Eng. 30, 457–499.Google Scholar
Gregg, S.J. & Sing, K.S.W. (1982) Adsorption, Surface Area and Porosity. Academic Press, London.Google Scholar
Izumi, I., Dunn, W.W., Wilboun, K.O., FAN F-R. F. & Bard, A.J. (1980) Heterogeneous photocatalytic oxidation of hydrocarbons on platinized TiO2 powders. J. Phys. Chem. 84, 3207–3210.Google Scholar
Jones, J.R. & Purnell, J.H. (1994) The catalytic dehydration of pentan-l-ol by alumina pillared Texas montmorillonites of differing pillar density. Catal. Lett. 28, 283–289.Google Scholar
Kijima, T., Nakazawa, H. & Takenouchi, S. (1991) Synthesis of Ti-containing pillared montmorillonite using a trinuclear acetatochlorohydroxo titanium (III) complex. Bull. Chem. Soc. Jpn. 64, 1395–1397.Google Scholar
Lin, J.-T., Jong, S.-J. & Cheng, S. (1993) A new method for preparing microporous titanium pillared clays. Microporous Mater. 1, 287–290.Google Scholar
Mokaya, R. & Jones, W. (1994) Pillared acid-activated clays. J. Chem. Soc. Chem. Commun. 8, 929–930.CrossRefGoogle Scholar
Mokava, R. & Jones, W. (1995) Pillared clays and pillared acid-activated clays; a comparative study of physical, acidic, and catalytic properties. J. Catal. 153, 76–85.CrossRefGoogle Scholar
Mokaya, R., Jones, W., Davies, M.E. & Whittle, M.E. (1993) Chlorophill adsorption by alumina pillared acid-activated clays. J. Am. Oil. Chem. Soc. 70, 241–244.CrossRefGoogle Scholar
Mokaya, R., Jones, W., Whittle, M.E. & Davms, M.E. (1991) Synthesis and characterization of pillared acid-activated montmorillonites. Mat. Res, Soc. Syrup. Proc. 233, 81–88.Google Scholar
Sterte, J. (1986) Synthesis and properties of titanium oxide cross-linked montmorillonite. Clays Clay Miner. 34, 658–664.Google Scholar
Tauster, S., Fung, S.C. & Garten, R.L. (1978) Strong metal-support interactions. Group nobel metals supported on TiO2 . J. Am. Chem. Soc. 100, 170–175.Google Scholar
Vaughan, D.E.W., Lussier, R.J. & Magee, J.S. Jr. (1979) U.S. Pat., 4,176,090. Google Scholar
Yamanaka, S., Nishihara, T. & Hayrori, M. (1987) Preparation and properties of titania pillared clay. Mat. Chem. Phys. 17, 87–101.CrossRefGoogle Scholar
Yoneyama, H., Haga, S. & Yanamaka, S. (1989) Photocatalytic activities of microcrystalline TiO2 incorporated in sheet silicates of clay. J. Phys. Chem. 93, 4833–4837.Google Scholar