I have a spray pyrolysis machine capable of a substrate temperature of up to 500deg C. My theory is that I should be able to sonocate TiO2 nanopowder (already in Anatase crystal form) into ethanol, then add an rGO water dispersion dropwise to the TiO2 ethanol solution adjusting the pH with acetic acid to keep the TiO2 from precipitating in the presence of the water. I would then sonocate this mixture and stir for 24hrs, then spray to my pre-cleaned glass substrate using an ultrasonic spray head and substrate temperature of 110deg C to evaporate the solvents.

My objective would be to be left with a photocatalytic glass that can remove Methylene Blue from water under UVA light irradiation and be re-used over and over as the coating should be extremely stable.

Does anyone have anything to say to this? Issues? Better ways to use the equipment I have for the same outcome?