Abstract
Nanocomposites TiO2/SiO2 with photocatalytic and adsorptive properties were prepared by codispersing of η-modification and anatase (commercial Hombifine N) and SiO2 (opal, granules, ultrafine) in ethanol (or ethanol–water mixture in the presence of chlorophylls or porphyrins) with ultrasonic treatments of the mixture (method 1) and an aqueous solution of KOH with a microwave treatment (method 2), as well as the introduction of SiO2 in the reaction mixture during the synthesis of TiO2 by brief hydrolysis of sulfate titanyl (method 3). It was found that the state of titania in the sample (X-ray amorphous or nanocrystalline) and its deposition on SiO2 nanocomposites depend on the method and the conditions of obtaining. It was established that the photocatalytic activity of nanocomposite TiO2/SiO2 (granules) (method 1) photosensitized by coproporphyrin I in the visible range and the photocatalytic activity of nanocomposite TiO2/SiO2 (opal) (method 3) in the near UV range exceed activity of the commercial sample of TiSiO4 by more than 20-fold and ~7-fold, respectively. It was shown that the nanocomposite TiO2/SiO2 (opal) significantly reduces the concentration of cations (in particular, Be, Ni, Bi) in the model water systems.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
G. Erlikh, Small Objects—Great Ideas. A Broad View of Nanotechnology (BINOM. Laboratoriya Znanii, 2012) [in Russian].
M. Dadachov. “Novel titanium dioxide, process of making and method of using same,” US Patent No. 0171877 (2006).
M. Dadachov. “Novel adsorbents and process of making and using same,” US Patent No. 0144793 (2006).
S. Singh, K. C. Barick, and D. Bahadur. “Functional oxide nanomaterials and nanocomposites for the removal of heavy metals and dyes,” Nanomater. Nanotechnol. 3, 20 (2013).
K. E. Engates and H. J. Shipley. “Adsorption of Pb, Cd, Cu, Zn and nitotitanium dioxide nanoparticles: effect of particle size, solid concentration, and exhaustion,” Environ. Sci. Pollut., No. 18, 386–395 (2011).
P. A. Demina, A. A. Kuz’michev, A. M. Tsybinsky, L. N. Obolenskaya, G. M. Kuz’micheva, E. N. Domoroshchina, and E. V. Savinkina. “Synthesis, characterization and adsorption behavior of Mo(VI) and W(VI) ions on titanium dioxide nanoparticles containing anatase modification,” Appl. Nanosci. 4, 979–987 (2014).
P. A. Demina, A. M. Zybinskii, G. M. Kuz’micheva, L. N. Obolenskaya, E. V. Savinkina, and N. A. Prokudina. “Adsorption ability of samples with nanoscale anatase to extract Nb(V) and Ta(V) ions from aqueous media,” Crystallogr. Rep. 59, 430 (2014).
G. M. Kuz’micheva, E. N. Domoroshchina, E. V. Savinkina, and L. N. Obolenskaya, “Nanosized titania with anatase structure: synthesis, characterization, applications and environmental effects,” in Titanium Dioxide: Chemical Properties, Applications and Environmental Effects, Chemical Engineering Methods and Technology (Nova Science, USA, 2014), Chap. 9, pp. 177–227.
S. Banerjee, S. C. Pillai, P. Falaras, K. E. O’Shea, J. A. Byme, and D. D. Dionysiou. “New insights into the mechanism of visible light photocatalysis,” J. Phys. Chem. Lett. 5, 2543–2514 (2014).
A. Fujishima, K. Hashimoto, and T. Watanabe, TiO2 Photocatalysis: Fundamentals and Applications (BKC, Tokyo, 1999).
J. G. Yoon, H. K. Oh, and Y. J. Kwag. “Structural and optical properties of TiO2-SiO2 composite films prepared by aerosol-assisted chemical-vapor deposition,” J. Korean Phys. Soc. 33, 699–704 (1998).
K. Balachandaran, R. Venckatesh, and R. Sivaraj. “Synthesis of nano-TiO2-SiO2 composite using sol-gel method: effect on size, surface morphology and thermal stability,” Int. J. Eng. Sci. Technol. 2, 3695–3700 (2010).
A. Nilchi, S. Janitabar-Darzi, and S. Rasouli-Garmarodi. “Sol-gel preparation of nanoscale TiO2/SiO2 composite for eliminating of con red azo dye,” Mater. Sci. Appl. 2, 476–480 (2011).
K. Balachandran, R. Venckatesh, and R. Sivaraj. “Photocatalytic decomposition of isolan black by TiO2–SiO2 core shell nanocomposites,” Int. J. Res. Eng. Technol. 2 (9), 46–51 (2013).
D. A. Kumar, J. M. Shyla, and F. P. Xavier. “Synthesis and characterization of TiO2/SiO2 nanocomposites for solar cell applications,” Appl. Nanosci. 2, 429–436 (2012).
L. Pinho, F. Elhaddad, D. S. Facio, and M. J. Mosquera. “A novel TiO2–SiO2 nanocomposite converts a very friable stone into a self-cleaning building material,” Appl. Surf. Sci. 275, 389–396 (2013).
L. N. Obolenskaya, G. M. Kuz’micheva, E. V. Savinkina, N. V. Sadovskaya, A. V. Zhilkina, N. A. Prokudina, and V. V. Chernyshev. “Influence of the conditions of the sulfate method on the characteristics of nanosized anatase-type samples,” Russ. Chem. Bull. 61, 2049–2055 (2012).
J. Canny. “A computational approach to edge detection,” IEEE Trans. Pattern Anal. Machine Intelligence 8, 679–698 (1986).
D. S. Tsoukleris, A. I. Kontos, P. Aloupogiannis, and P. Falaras. “Photocatalytic properties of screen-printed titania,” Catal. Today 124, 110–117 (2007).
P. Falaras. “Synergetic effect of carboxylic acid functional groups and fractal surface characteristics for efficient dye sensitization of titanium oxide,” Sol. Energy Mater. Sol. Cells 53, 163–175 (1998).
J. Zhao, C. Chen, and W. Ma. “Photocatalytic degradation of organic pollutants under visible light irradiation,” Top. Catal. 35, 269–278 (2005).
E. V. Savinkina, G. M. Kuzmicheva, and L. N. Obolenskaya. “Synthesis, characterization and photocatalytic properties of ?-titania,” Int. J. Energy Environ., No. 6, 268 (2012).
E. V. Savinkina, L. N. Obolenskaya, G. M. Kuz’micheva, A. V. Dorokhov, and A. Yu. Tsivadze. “A new ?-titania- based photocatalyst,” Dokl. Phys. Chem. 441, 224 (2011).
E. V. Savinkina, L. N. Obolenskaya, G. M. Kuz’micheva, and A. V. Dorokhov, “Nanosized ?-titania-based photocatalyst,” Patent RF No. 24697.
I. A. Zamilatskov, E. V. Savinkina, A. N. Volov, M. S. Grigor’ev, I. S. Lonin, L. N. Obolenskaya, G.V. Ponomarev, O. I. Koifman, A. S. Kuzovlev, G. M. Kuz’micheva, and A. Yu. Tsivadze. “Synthesis, structures and photosensitizing properties of new porphyrins, Pt(II) and Pd(II),” Macroheterocycles 5, 308 (2012).
J. H. Cai, Y. J. Ye, J. W. Huang, H. C. Yu, and L. N. Ji. “Synthesis, characterization and visible-light photocatalytic activity of TiO2–SiO2 composite modified with zinc porphyrins,” J. Sol-Gel Sci. Technol. 62, 432–440 (2012).
A. Gainanova, G. Kuz’micheva, E. Kabachkov, and A. Zybinskiy, “Preparation, characterization, photocatalytic and adsorption properties of samples with nano-TiO2,” in Proceedings of the 12th International Conference on Crystal Chemistry of Intermetallic Compounds, Lviv, Ukraine, Sept. 22–26, 2013, p. 183.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © L.N. Obolenskaya, A.A. Gaynanova, G.V. Kravchenko, G.M. Kuz’micheva, E.V. Savinkina, E.N. Domoroshchina, A.M. Tsybinsky, A.V. Podbelsky, 2016, published in Rossiiskie Nanotekhnologii, 2016, Vol. 11, Nos. 1–2.
Rights and permissions
About this article
Cite this article
Obolenskaya, L.N., Gaynanova, A.A., Kravchenko, G.V. et al. Nanocomposites based on silicon dioxide of different nature with functional titanium dioxide nanoparticles. Nanotechnol Russia 11, 41–56 (2016). https://doi.org/10.1134/S1995078016010110
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1995078016010110