Photoelectric properties of TiO2-GO+Ag ternary nanocomposite material

Abstract

A ternary nanocomposite material based on TiO 2 , graphene oxide and core-shell nanostructures of Ag/TiO₂ composition was obtained by a two-step hydrothermal method. The formation of a dual TiO₂-GO nanocomposite was confirmed by Raman spectroscopy data, where the nanocomposite spec- tra contain peaks characteristic of both TiO 2 and graphene oxide. Studies of electrophysical character- istics have shown that the addition of plasmon nanoparticles leads to an improvement in the charge-transfer characteristics of the synthesized material. This is due to the fact that the charge transfer resistance of a ternary nanocomposite material TiO₂-GO-Ag is noticeably lower than for pure TiO 2 ( 13 times) and TiO₂-GO nanocomposite ( 3 times). In addition, the prescence of Ag/TiO₂ core-shell nanostructures in the TiO₂-GO nanocomposite material leads to an increase in the efficiency of conversion of incident light into photocurrent, which will be resulted in the growth of photocatalytic activity of synthesized materials.

Recommended Citation

Ibrayev, N. Kh.; Zhumabekov, A. Zh.; and Seliverstova, E. V. (2020) "Photoelectric properties of TiO2-GO+Ag ternary nanocomposite material," Eurasian Journal of Physics and Functional Materials: Vol. 4: No. 3, Article 9.
DOI: https://doi.org/10.29317/ejpfm.2020040309