Abstract
Nanodisperse TiO2 hydrosol and two of its fractions stabilized by HCl are studied. The anatase nanocrystalline fractions are obtained by the stepped coagulation of the stable sol using dependence of coagulation thresholds on size of nanocrystallites. X-Ray investigation in small and wide angles of scattering has revealed that the anatase nanocrystallites have a shape of 2.5–3 nm thick elongated plates with 8–18 nm lateral sizes. The concentrated hydrosols with the reduced HCl content prepared from the anatase fractions are shown to form an ordered structure. Narrow fractions of TiO2 nanocrystallites obtained from the stable hydrosols seem to be promising for the preparation of highly ordered structures with a nanometer periodicity.
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References
V. Shklover, M.-K. Nazeeruddin, S.M. Zakeeruddin, C. Barbe, A. Kay, T. Haibach, W. Steurer, R. Hermann, H.-U. Nissen, and M. Gratzel, Chem. Mater. 9, 430 (1997).
A. Chemseddine and T. Moritz, Eur. J. Inorg. Chem. 235 (1999).
S. Ito, S. Inoue, H. Kawada, M. Hara, M. Iwasaki, and H. Tada, J. Col. Interf. Sci. 216, 59 (1999).
A. Rammal, F. Brisach, and M. Henry, C. R. Chimie (5), 59 (2002).
L.A. Feigin and D.I. Svergun, Structure Analysis by Small-Angle X-ray and Neutron Scattering (Plenum Press, New-York, 1987).
C.J. Brinker and G.W. Scherer, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing (Academic press, London, 1990).
L.I. Grischenko, N.G. Medvedkova, V.V. Nazarov, and Y.G. Frolov, Kolloidnii Zhurnal 56(2), 269 (1994).
O.B. Pavlova-Verevkina, E.D. Politova, and V.V. Nazarov, Colloid Journal 61(3), 359 (1999).
O.B. Pavlova-Verevkina, V.V. Nazarov, E.D. Politova, and A.V. Pertsov, Colloid Journal 59(5), 635 (1997).
B.V. Derjaquin and L.D. Landau, Acta Physicochem. URSS 14, 633 (1941).
O.B. Pavlova-Verevkina, Y.A. Shevchuk, and V.V. Nazarov, Colloid Journal 65(4), 474 (2003).
L.M. Sharigin, T.G. Malih, E.N. Loguntzev, and A.N. Shtin, Zhurnal Prikladnoi Chimii (6), 1277 (1980).
O.B. Pavlova-Verevkina, N.V. Kul’kova, E.D. Politova, Y.A. Shevchuk, and V.V. Nazarov, Colloid Journal 65(2), 226 (2003).
R. Finsy, Adv. Colloid Interf. Sci. 52, 79 (1994).
JCPDS—International Center for Diffraction Data. No. 21-1272 (1996).
J.E. Martin and A.J. Hurd, J. Appl. Cryst. 20, 61 (1987).
A. Guinier, Ann. Phys. 12, 161 (1939).
R.J. Hunter, Foundations of Colloid Science (Clarendon Press, Oxford, 1995), Vol. I, p. 151.
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Pavlova-Verevkina, O.B., Chvalun, S.N., Politova, E.D. et al. Study of the Stable Nanocrystalline TiO2 Hydrosol and its Fractions. J Sol-Gel Sci Technol 35, 91–97 (2005). https://doi.org/10.1007/s10971-005-1311-7
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DOI: https://doi.org/10.1007/s10971-005-1311-7