Improvement of CO2 purifying system by photocatalyst for application in microalgae culture technology

Abstract

By reactive grinding method Vanadium-doped rutile TiO2 nanoparticle material was obtained with an average particle size of 20 - 40 nm, the Bnmauer-Emmet-Teller (BET) specific surface area about 20 m2g~’ and it absorbed strongly in the uv region and increased at the visible wavelength of 430 - 570 nm. This study focused on the improvement of exhaust gas treatment from coal-fired flue gas of the traditional adsorption-catalysis system (Modular System for Treating Flue Gas - MSTFG) by using the V2O5/TiO2 Rutile as photocatalyst. The results showed that integrating both catalytic systems mentioned above increased the gas treatment efficiency: CO from 77 % to over 98 %, NOx from 50 % to 93 %, SO2 was absent as opposed to the input gas component, Also it showed that V2O5/TiO2 Rutile integrated with MSTFG has got high efficiency of CO treatment, also secured the high obtained CO2 concentiation as a valuable carbon source for microagal mass culture as well as saving energy and simplifying devices.