EN
The influence of mechanochemical treatment by high-energy ball milling in two media (water and ethanol) of different V_{2}O_{5}/MoO_{3}/ZrO_{2} compositions on its structure modification and photocatalytic properties is considered. Milling process in both media leads to final products Zr(V_{2}O_{7}) and Mo_{4}V_{6}O_{25}. Their subsequent thermal treatment provides to formation of Zr(MoO_{4})_{2} and V_{2}MoO_{8} composition. They show the photocatalytic activity in the dyes degradation process in aqueous solution.