Abstract
V x Ti1–x O2 (x = 5 and 10 mol %) solid solutions have been synthesized through supercritical drying in isopropanol at t = 250°C and p = 10 MPa. Their physicochemical properties and photocatalytic performance have been compared to those of an earlier synthesized Zn x Ti1–x O2 aerogel containing 10 mol % Zn [1]. It has been shown that increasing the vanadium content of V x Ti1–x O2 from 5 to 10 mol % leads to a decrease in hydrogen evolution rate in methanol/water splitting reaction under UV irradiation from 190 to 32 µL/(min gcatal), whereas in the case of the anatase-based aerogel solid solution containing 10 mol % Zn an opposite picture is observed: the hydrogen evolution rate in methanol/water splitting reaction under UV irradiation increases sharply to 700 µL/(min gcatal).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Kolen’ko, Y.V., Kovnir, K.A., Gavrilov, A.I., Garshev, A.V., Meskin, P.E., Churagulov, B.R., Bouchard, M., Colbeau-Justin, C., Lebedev, O.I., Van Tendeloo, G., and Yoshimura, M., Structural, textural, and electronic properties of a nanosized mesoporous ZnxTi1–xO2–x solid solution prepared by a supercritical drying route, J. Phys. Chem. B, 2005, vol. 109, pp. 20303–20309.
Joya, K.S. and de Groot, H.J.M., Artificial leaf goes simpler and more efficient for solar fuel generation, ChemSusChem, 2014, vol. 7, pp. 73–76.
Zhao, C., Luo, H., Chen, F., Zhang, P., Yi, L., and You, K., A novel composite of TiO2 nanotubes with remarkably high efficiency for hydrogen production in solar-driven water splitting, Energy Environ. Sci., 2014, vol. 7, pp. 1700–1707.
Sun, Y., Wang, G., and Yan, K., TiO2 nanotubes for hydrogen generation by photocatalytic water splitting in a two-compartment photoelectrochemical cell, Int. J. Hydrogen Energy, 2011, vol. 36, no. 24, pp. 15502–15508.
Xu, M., Da, P., Wu, H., Zhao, D., and Zheng, G., Controlled Sn-doping in TiO2 nanowire photoanodes with enhanced photoelectrochemical conversion, Nano Lett., 2012, vol. 12, pp. 1503–1508.
Rodionov, I.A., Silyukov, O.I., and Zvereva, I.A., Study of photocatalytic activity of layered oxides: NaNdTiO4, LiNdTiO4, and HNdTiO4 titanates, Russ. J. Gen. Chem., 2012, vol. 82, no. 4, pp. 635–638.
Dagan, G. and Tomkiewicz, M., Titanium dioxide aerogels for photocatalytic decontamination of aquatic environments, J. Phys. Chem., 1993, vol. 97, pp. 12651–12655.
Balakhonov, S.V., Vatsadze, S.Z., and Churagulov, B.R., Effect of supercritical drying parameters on the phase composition and morphology of aerogels based on vanadium oxide, Russ. J. Inorg. Chem., 2015, vol. 60, no. 1, pp. 9–15.
Gubin, S.P. and Buslaeva, E.Yu., Supercritical isopropanol as a reductant of inorganic oxides, Sverkhkriticheskie Flyuidy. Teor. Prakt., 2009, no. 4, pp. 76–94.
Busser, G., Mei, B., and Muhler, M., Optimising the deposition of hydrogen evolution sites on suspended semiconductor particles using on-line photocatalytic reforming of aqueous methanol solutions, ChemSus-Chem, 2012, vol. 5, no. 11, pp. 2200–2206.
Gavrilov, A.I., Balakhonov, C.V., Gavrilova, D.Yu., Churagulov, B.R., and Gudilin, E.A., Hydrothermal synthesis of sodium and potassium titanates and their photocatalytic properties in water and methanol/water splitting, Dokl. Chem., 2014, vol. 455, nos. 1–2, pp. 58–61.
Gavrilov, A.I., Rodionov, I.A., Gavrilova, D.Yu., Zvereva, I.A., Churagulov, B.R., and Tret’yakov, Yu.D., Hydrothermal route to titania-based nanoparticles for photocatalytic water splitting, Dokl. Chem. 2012, vol. 444, no. 2, pp. 133–136.
Khan, H. and Berk, D., Sol–gel synthesized vanadium doped TiO2 photocatalyst: physicochemical properties and visible light photocatalytic studies, J. Sol–Gel Sci. Technol., 2013, vol. 68, pp. 180–192.
Zhao, G., Li, H., Zhang, J., Chen, Z., Han, G., and Song, B., Effects of preparation parameters on room temperature formation of vanadium-doped TiO2 nanocrystalline powder, J. Am. Ceram. Soc., 2011, vol. 94, pp. 71–76.
Li, H., Zhao, G., Chen, Z., Han, G., and Song, B., Low temperature synthesis of visible light-driven vanadium doped titania photocatalyst, Thin Solid Films, 2010, vol. 344, pp. 247–250.
Shao, G.N., Imran, S.M., Jeon, S.J., Kang, S.J., Haider, S.M., and Kim, H.T., Sol–gel synthesis of vanadium doped titania: effect of the synthetic routes and investigation of their photocatalytic properties in the presence of natural sunlight, Appl. Surf. Sci., 2015, vol. 351, pp. 1213–1223.
Chen, W.-F., Koshy, P., and Sorrell, C.C., Effect of intervalence charge transfer on photocatalytic performance of cobalt-and vanadium-codoped TiO2 thin films, Int. J. Hydrogen Energy, 2015, vol. 40, no. 46, pp. 16215–16229.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.I k]Gavrilov k]S.V k]Balakhonov k]B.R k]Churagulov k]2016 k]published in Neorganicheskie Materialy k]2016 k]Vol k]52 k]No k]12 k]pp k]1316–1320.
Rights and permissions
About this article
Cite this article
Gavrilov, A.I., Balakhonov, S.V. & Churagulov, B.R. Synthesis and photocatalytic activity of anatase-based aerogels. Inorg Mater 52, 1240–1243 (2016). https://doi.org/10.1134/S0020168516120049
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0020168516120049