TITANIUM DIOXIDE BASED CARBONACEOUS PHOTOCATALYST, METHOD OF PREPARING SAID PHOTOCATALYST AND USE (VERSIONS) Russian patent published in 2010 - IPC C01G23/47 B01J21/06 B01J27/20 C09C1/36 

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical, construction and other industries. A titanium dioxide based carbonaceous photocatalyst is proposed, having more efficient light absorption in the λ≥400 nm range compared to pure titanium dioxide, and characterised at temperature 5 K by electron paramagnetic resonance (EPR) spectrum with only one intense signal in the interval of values of g from 1.97 to 2.05, as well as by an X-ray photoelectron spectrum in which the intense absorption band for bond energy of 285.6 eV relates to the Ols band at 530 eV. To prepare such a photocatalyst, a titanium compound with BET specific surface area of at least 50 m²/g is thoroughly mixed with carbonaceous substance and the mixture is thermally treated at temperature not above 400°C. Carbon content in the photocatalyst ranges from 0.05 to 4 wt %.

EFFECT: more efficient production of photocalyst which is active in daylight, and improved optical properties of the photocalyst.

31 cl, 11 dwg, 9 ex