najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-1008Research ArticleСтатьиSynthesis 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)PolyakovE. V.

str. Pervomajskaya, 91, 620990, Ekaterinburg

tel.: +7 343 3744814, fax.: +7 343 3744495

Polyakov@ihim.uran.ruKrasilnikovV. N.

str. Pervomajskaya, 91, 620990,Ekaterinburg

GyrdasovaO. I.

str. Pervomajskaya, 91, 620990,Ekaterinburg

BuldakovaL. Yu.

str. Pervomajskaya, 91, 620990,Ekaterinburg

YanchenkoM. Yu.

str. Pervomajskaya, 91, 620990,Ekaterinburg

Institute of Solid State Chemistry UB RASRussian Federation20141508202554553563Copyright © Polyakov E.V., Krasilnikov V.N., Gyrdasova O.I., Buldakova L.Y., Yanchenko M.Y., 20252025Polyakov E.V., Krasilnikov V.N., Gyrdasova O.I., Buldakova L.Y., Yanchenko M.Y.Polyakov E.V., Krasilnikov V.N., Gyrdasova O.I., Buldakova L.Y., Yanchenko M.Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1008

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), 0 < x ≤ 0.1) with the anatase structure have been synthesized by heating glycolate Ti1−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.

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The authors declare that there are no conflicts of interest present.