IMPROVING THE ELECTROPHYSICAL PROPERTIES OF NANOCOMPOSITE MATERIALS BASED ON GRAPHENE OXIDE AND TIO2
Аннотация
This article shows the results related to the study of the effect of graphene oxide on the photoelectric properties of nanostructured titanium dioxide films. A TiO2–GO nanocomposite material with a graphene oxide concentration of 3 wt% was synthesized by hydrothermal method. The Raman and IR spectra of nanocomposite materials have been studied and show the presence of peaks characteristic of graphene oxide and titanium dioxide. In the IR spectra, the so-called Ti-O-C bond is observed, which is responsible for fluctuations between TiO2 and graphene oxide. Studies of absorption spectra show that in a nanocomposite material, the absorption spectrum is shifted to the long-wavelength region of light. Studies of electrophysical properties were carried out using electrochemical impedance spectroscopy. The impedance spectrum of this material shows that there is an improvement when graphene oxide is added to TiO2 films. Photovoltaic parameters also show an increase in the photoinduced current in a nanocomposite material with the addition of graphene oxide by 3 wt%. It is shown that when graphene oxide is added 3 wt% to TiO2, an increase in photocatalytic properties is observed due to an increase in the photoinduced current of the nanocomposite material.
Автор
Zhumabekov A.Zh.
DOI
https://doi.org//10.48081/UBFY3179
Ключевые слова
graphene oxide
titanium dioxide
TiO2–GO
nanocomposite
absorption spectrum
impedance spectrum
photocatalysis
Год
2022
Номер
Выпуск 3
Для цитирования:
Zhumabekov A.Zh. IMPROVING THE ELECTROPHYSICAL PROPERTIES OF NANOCOMPOSITE MATERIALS BASED ON GRAPHENE OXIDE AND TIO2 // Вестник Торайгыров университета Серия: физика, математика и компьютерные науки - 2022 - №3 - https://doi.org//10.48081/UBFY3179
Скопировано!