Abstract
Commercial anatase containing an appreciable amount of sulphur has been treated for sulphur removal by calcination at increasing temperatures or soaking with aqueous NaOH solutions. It has been found that both methods are active for sulphur removal, but the first one also leads to a sharp sintering of the titania particles. On the other hand, treatment with NaOHaq leads to incorporation of sodium cations. Both treatments lead also to changes in surface acidity, as measured by Fourier transform infrared (FT-IR) monitoring of pyridine adsorption.
Similar content being viewed by others
References
R. S. Darby andJ. Leighton, in “The modern inorganic chemicals industry”, edited by R. Thomson (The Chemical Society, London 1977) p. 354.
G.C. Bond andK. Brückman,Faraday Discuss. Chem. Soc. 72 (1981) 235.
A. J. Van Hegstum, J. G. Van Ommen, H. Bosch andP. J. Gellings,Appl. Catal. 8 (1983) 369.
C. Martín, I. Martín andC. Mendizabal andV. Rives, in “New frontiers in catalysis”, Proceedings of the 10th International Congress on Catalysis, Budapest, Hungary, 1992, edited by L. Guzci, F. Solymosi, P. Tétény (Elsevier, Amsterdam, 1993)Studies Surface Sci. Catal. 1993,75C, 1987.
C. Martín andV. Rives,J. Molec. Catal. 48 (1988) 381.
G. Busca, H. Saussey, O. Saur, J. C. Lavalley andV. Lorenzelli,Appl Catal. 14 (1985) 245.
C. Morterra, G. Cerrato, M. Visca andD. M. Lenti,Chem. Mater. 3 (1991) 132.
F. Garbassi, E. Mello Ceresa, E. Ochiello, L. Pozzi, M. Visca andD. M. Lenti,Langmuir 3 (1987) 173.
J. H. De Boer, “The structure and properties of porous materials” (Butterworths, London, 1958).
K. S. W. Sing, D. H. Everett, R. A. W. Haul, L. Moscou, R. A. Pierotti, J. Rouquerol andT. Sieminiewska,Pure Appl. Chem. 57 (1985) 603.
R. W. Cranston andF. A. Inkley,Adv. Catal 9 (1957) 143.
H. Miyata, Y. Nakagawa, T. Ono andY. Kubokawa,J. Chem. Soc., Faraday Trans. I 79 (1983) 2343.
C. Martín, I. Martín C. delMoral andV. Rives,J. Catal. 146 (1994) 415.
K. Tanabe, M. Misono, Y. Ono andH. Hattori,Stud. Surf. Sci. Catal. 51 (1989) 199.
T. Yamaguchi,Appl. Catal. 61 (1986) 104.
M. Waqif, J. Bachelier, O. Saur andJ.C. Lavalley,J. Molec. Catal. 72 (1992) 127.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Martín, C., Martín, I. & Rives, V. Effect of sulphate removal on the surface texture and acid-base properties of TiO2 (anatase). J Mater Sci 30, 3847–3852 (1995). https://doi.org/10.1007/BF01153944
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01153944