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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2014, 5 (4), P. 553–563

SYNTHESIS AND PHOTOCATALYTIC ACTIVITY OF QUASI-ONE-DIMENSIONAL (1-D) SOLID SOLUTIONS Ti1-xMxO2-2x/2 (M(III)= Fe(III), Ce(III), Er(III), Tb(III), Eu(III), Nd(III and Sm(III), 0 ≤x≤0.1)

E.V. Polyakov – Institute of Solid State Chemistry UB RAS, str. Pervomajskaya, 91, 620990,Ekaterinburg, Russia; Polyakov@ihim.uran.ru, tel.: +7 343 3744814, fax.: +7 343 3744495
V. N. Krasilnikov – Institute of Solid State Chemistry UB RAS, str. Pervomajskaya, 91, 620990,Ekaterinburg, Russia
O. I. Gyrdasova – Institute of Solid State Chemistry UB RAS, str. Pervomajskaya, 91, 620990,Ekaterinburg, Russia
L.Yu. Buldakova – Institute of Solid State Chemistry UB RAS, str. Pervomajskaya, 91, 620990,Ekaterinburg, Russia
M.Yu. Yanchenko – Institute of Solid State Chemistry UB RAS, str. Pervomajskaya, 91, 620990,Ekaterinburg, Russia

Quasi-one-dimensional (1–D) solid solutions Ti1-xMxO2-x/2 (M(III)=Fe(III), Ce(III), Er(III), Tb(III), Eu(III), Nd(III), Sm(III), 01-xMx(OCH2CH2O)2-x/2 in air at a temperature above 450 °C. A method was proposed for the production of iron- and carbon-doped titanium dioxide with the anatase structure Ti1-xFexO(2-x/2)-yCy and of composites based thereon containing an excessive carbon content. It was shown that the oxide solid solutions exhibit photocatalytic activity in the hydroquinone photooxidation reaction during irradiation in the ultraviolet spectrum. A correlation was established between the hydroquinone oxidation rate and the concentration of the substituting ions ‘M’ in the catalyst. In the framework of the theory of ion-covalent binary solid solutions, a correlation was found between the energy of the photocatalytic reaction and the estimated mixing enthalpy of binary solid solutions formation.

Keywords: glycolates, three-charged cations, anatase, synthesis, photocatalytic properties.

PACS 82.33.Pt, 82.50.-m

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