AbstractAbout AuthorsReferences
The results of the evaluation of the effect of photocatalytic composite material (PCM) of TiO2–SiO2 system synthesized by sol-gel method on the properties of the cement system are presented. The properties of the synthesized PCM – chemical and mineral composition, micro-structural features, depending on the ratio of raw materials – tetrabutoxytitanium and diatomite powder are determined. The synthesized PCM differ in the content of anatase and quartz, the distribution of anatase crystals on the surface of diatomite particles. The deposition of tumors on the surface of the diatomite is selective, anatase accumulations are observed on particles having a developed amorphized surface. Whereas the crystallized particles of diatomite with a smooth surface remain uncovered with new formations of anatase. Established the dependence of rheological parameters of cement paste, compressive strength and ability to self-cleaning of cement stone from the composition of PCM, in particular, the content of SiO2 and TiO2. It is shown that the ability to self-purification of cement stone with synthesized PCM is close to the sample with industrial nano-scale photocatalyst while maintaining the level of compressive strength. Both synthesized PCMs can be recommended for the production of self-cleaning cement composites. They can be obtained on the basis of domestic raw materials, the technology of their production is simple and does not require special equipment. The composition of the used PCM, namely the ratio of anatase and silica, should be chosen depending on the purpose and operating conditions of the structures.
M.V. LABUZOVA, Bachelor (This email address is being protected from spambots. You need JavaScript enabled to view it.)
E.N. GUBAREVA, Bachelor (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Y.N. OGURTSOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.V. STROKOVA, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
E.N. GUBAREVA, Bachelor (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Y.N. OGURTSOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.V. STROKOVA, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Belgorod State Technological University named after V.G. Shukhov (46, Kostyukova Street Belgorod, 308012, Russian Federation)
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2. Zhao L., Yu J., Cheng B. Preparation and characterization of SiO2/TiO2 composite microspheres with microporous SiO2 core/mesoporous TiO2 shell. Journal of Solid State Chemistry. 2005. Vol. 178 (6), pp. 1818–1824. DOI: http://dx.doi.org/10.1016/j.jssc.2005.03.024
3. Strokova V.V., Gubareva E.N., Ogurtsova Y.N. Evaluation of the properties of the silica raw materials as a substrate as component of composite photocatalytic material. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. Shukhova.2017. No. 2, pp. 6–12. DOI: http://dx.doi.org/10.12737/23819 (In Russian).
4. Labuzova M.V., Gubareva E.N., Ogurtsova Yu.N., Strokova V.V. Properties of photocatalytic composite material based on silica raw materials. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. Shukhova.2018. No. 8, pp. 85–92. DOI: http://dx.doi.org/10.12737/article_5b6d5863076c49.45633399 (In Russian).
5. Yener H.B., Helvaci S.S. Effect of synthesis temperature on the structural properties and photocatalytic activity of TiO2/SiO2 composites synthesized using rice husk ash as a SiO2 source. Separation and Purification Technology.2015. Vol. 140, pp. 84–93. DOI: http://dx.doi.org/10.1016/j.seppur.2014.11.013
6. Nandanwar R., Ingh P., Syed F.F., Haque F.Z. Preparation of TiO2/SiO2 nanocomposite with non-ionic surfactants via sol-gel process and their photocatalytic study. Oriental Journal of Chemistry. 2014. Vol. 30. No. 4, pp. 1577–1584. DOI: http://dx.doi.org/10.13005/ojc/300417
7. Hela R., Bodnarova L. Research of possibilities of testing effectiveness of photoactive TiO2 in concrete. Stroitel’nye Materialy [Construction Materials]. 2015. No. 2, pp. 77–81. (In Russian).
8. Timokhin D.K., Geranina Yu.S. Durability cement concrete with the addition of titanium dioxide in the urban environment aggressive. Tekhnicheskoe regulirovanie v transportnom stroitel’stve.2016. No. 2 (16), pp. 9–12. (In Russian).
9. Borgarello E., Kapone K., Gverrini D.L. Development of photocatalytic cement-based materials: situation and perspectives. Tsement i ego primenenie.2017. No. 6, pp. 74–77. (In Russian).
10. Lukuttsova N.P., Pykin A.A., Postnikova O.A., Golovin S.N., Borovik E.G. The structure of cement stone with dispersed titanium dioxide in daily age. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. Shukhova.2016. No. 11, pp. 13–17. (In Russian).
11. Lukuttsova N.P., Postnikova O.A., Soboleva G.N., Rotar’ D.V., Ogloblina E.V. Photo-catalytic pavement on the basis of additive of nano-disperse titanium dioxide. Stroitel’nye Materialy [Construction Materials]. 2015. No. 11, pp. 5–8. (In Russian).
12. Murashkevich A.N., Alisienok O.A., Zharskii I.M. Physicochemical and photocatalytic properties of nanosized titanium dioxide deposited on silicon dioxide microspheres. Kinetika i kataliz.2011. Vol. 52. No. 6, pp. 830–837. (In Russian).
13. Cherkasov V.D., Buzulukov V.I., Tarakanov O.V., Emel’yanov A.I. Structure formation of cement composites with addition of modified diatomite. Stroitel’nye Materialy [Construction Materials]. 2015. No. 11, pp. 75–77. (In Russian).
14. Le Saoût, G., & Ben Haha, M. (2011). Effect of filler on early hydration. InÁ. Palomo, A. Zaragoza, & J. C. López Agüí(Eds.), Cementing a sustainable future (p. (7 pp.). Madrid, Spain: Instituto de Ciencias de la Construcción «Eduardo Torroja».
15. Guo M.-Z., Maury-Ramirez A., Poon C.S. Self-cleaning ability of titanium dioxide clear paint coated architectural mortar and its potential in field application.Journal of Cleaner Production.2016. No. 112, pp. 3583–3588. DOI: http://dx.doi.org/10.1016/j.jclepro.2015.10.079
For citation: Labuzova M.V., Gubareva E.N., Ogurtsova Y.N., Strokova V.V. The use of the photocatalytic composite material in the cement system. Stroitel’nye Materialy [Construction Materials]. 2019. No. 5, pp. 16–21. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-770-5-16-21