Development of environmentally friendly photocatalyst with nano-size pore structure coated with thin Ti-oxide

An environmentally friendly Ti-oxide/SiO2 photocatalyst was developed by using hydrolysis reaction of titanium fluoro-complex in aqueous solution which was permeated into the pores of silica support with nano-size pore structure and with high specific surface area. The catalyst prepared was photocatalytically active for the decomposition of formaldehyde in air under illumination with ordinary commercial fluorescent light at ambient temperature and pressure.