“Nanocomposites and nanomaterials”
Effect of alternative treatments methods on the electronic structure of ZrO2-TiO2
Zaika V.V.1, Sachuk O.V.2, Karbivskii V.L.1 
1G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine,
36 Academician Vernadsky Boulevard, UA‑03142 Kyiv, Ukraine.
E-mail:zaikavladimir228@gmail.com 
2Institute of Sorption and Problems of Endoecology N.A.S. of Ukraine, 
13 General Naumov street, UA-03164 13,Kiev, Ukraine.
In recent years, materials based on ZrO2-TiO2 have attracted the attention of researchers as hydrophobic, hydrophilic, corrosion-resistant coatings, solar converter elements, and moisture sensors.
A significant part of the materials based on ZrO2-TiO2 is obtained by sol-gel method, which is an energy-intensive process. In this work, the initial composite was obtained by mixing TiO2 and ZrO2 powder in a 1:1 ratio, after which the effect of mechanochemical and ultrasonic treatment on the electronic structure was investigated. It was shown that when analyzing the atomic composition of the surface, the most corrosion-resistant is the sample after mechanical treatment.
	In the paper [1] it was shown that the energy shift of the X-ray photoelectron spectra peaks can be caused by the different sizes of nanoparticles. This effect was established for the investigated nanoparticles.
It is indicated that the area of titanium oxide nanoparticles has a difference of 2.5 times, and for zirconium oxide a difference of 1.8 times in comparison with the original sample.

1. Kovalev, A. I., Wainstein, D. L., Rashkovskiy, A. Y., Osherov, A., & Golan, Y. Size shift of XPS lines observed from PbS nanocrystals.// Surface and Interface  Analysis – 2010.-42, N 6-7.-P. 850–854.