SYNTHESIS OF SIO2SNOXCUOY-BASED HYBRID NANOCOMPOSITE MATERIALS BY SOL–GEL TECHNOLOGY AND IN-DEPTH ANALYSIS OF THEIR PHYSICOCHEMICAL PROPERTIES

Baxriyev Ilyos Salohiddinovich; Rakhmonov Farkhod Kholbayevich

Authors

Baxriyev Ilyos Salohiddinovich Assistant, Zarmed University, Uzbekistan, Samarkand
Rakhmonov Farkhod Kholbayevich Assistant, Zarmed University, Uzbekistan, Samarkand

Keywords:

: sol–gel method, tetraethoxysilane, SiO2SnOxCuOy nanocomposite, hydrolysis kinetics, metal oxide nanoparticles, ethanol, isopropyl alcohol, isobutyl alcohol, pH, hydrolysis–condensation, hybrid materials.

Abstract

In this study, the aim was to synthesize SiO₂SnO_xCuO_y-based hybrid nanocomposite materials using sol–gel technology and to investigate, on a scientific basis, the main parameters influencing this process, such as the kinetics of hydrolysis and condensation, the nature of the solvent medium, pH indicators, and the initial molar ratios of metal oxide precursors. The course of the hydrolysis process in ethanol, isopropyl and isobutyl alcohol media based on tetraethoxysilane (TEOS), the formation of the gel phase, and the features of incorporation of SnO and CuO nanoparticles into the SiO₂ matrix were comparatively analyzed. The obtained results comprehensively revealed the factors affecting the structural and physicochemical stability of nanocomposite materials and substantiated the optimal synthesis conditions for creating metal-oxide-based hybrid systems. This work provides a scientific and technological basis for the application of metal-oxide nanocomposites in optical, catalytic and surface-related technologies.

References

Mirzaev Sh.E., Begimqulova Sh.A., Samiev A.A., Nasimov A.M. Sol-Gel 2020. Materialy mezhdunarodnoy konferensii. Samarkand, 2021. S. 65–66.

Nasimov A.M., Tashpulatov Kh.Sh., Mirzaev Sh.E., Samiev A.A. Sintez nanochastits ZnO metodom zol-gel. Materialy konferensii Respubliki Karakalpakstan. Nukus, 2020.

Cheng B., Shi W., Tanner J.M., Zhang L., Samulski E.T. Inorganic Chemistry. 2006. Vol. 45. P. 1208–1215.

Gui Z., Liu J., Wang Z., Song L., Hu Y., Fan W., Chen D. Journal of Physical Chemistry B. 2005. Vol. 109. P. 1113–1120.

Li Q., Kumar V., Li Y., Zhang H., Marks T.J., Chang R.P.H. Chemistry of Materials. 2005. Vol. 17. P. 1001–1007.

Lai M., Riley D.J. Chemistry of Materials. 2006. Vol. 18. P. 2233–2240.

He J.H., Hsu J.H., Wang C.W., Lin H.N., Chen L.J., Wang Z.L. Journal of Physical Chemistry B. 2006. Vol. 110. P. 50–57.

Yang L.X., Zhu Y.J., Wang W.W., Tong H., Ruan M.L. Journal of Physical Chemistry B. 2006. Vol. 110. P. 6609–6616.

Brinker C.J., Scherer G.W. Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing. New York: Academic Press, 1990. 908 p.

Hench L.L., West J.K. The sol–gel process. Chemical Reviews. 1990. Vol. 90, No. 1. P. 33–72.

Pierre A.C. Introduction to Sol–Gel Processing. Springer, 1998. 401 p.

Livage J., Sanchez C., Henry M., Doeuff S. The chemistry of sol–gel processes. New Journal of Chemistry. 1988. Vol. 12. P. 181–193.

Sanchez C., Julián B., Belleville P., Popall M. Applications of hybrid organic–inorganic nanocomposites. Journal of Materials Chemistry. 2005. Vol. 15. P. 3559–3592.

Innocenzi P. Infrared spectroscopy of sol–gel derived silica-based films: a spectroscopic history. Journal of Non-Crystalline Solids. 2003. Vol. 316. P. 309–319.

Schmidt H. Chemistry of material preparation by the sol–gel process. Journal of Non-Crystalline Solids. 1989. Vol. 100. P. 51–64.

Zayat M., Levy D. The sol–gel route to advanced materials. Journal of Sol-Gel Science and Technology. 2017. Vol. 84. P. 1–4.