Photocatalytic Properties of TiO2 Coatings Prepared by Cold Spray Process
Cold spray process offers an oxidation-free atmosphere. It is usually used for TiO2 coatings used in photocatalytic applications to purify a given medium. Cold sprayed coatings with spray dried powder and evaporated powder were compared. Investigation of properties using SEM, XRD, roughness test were performed. SEM and XRD data were found to be very similar, however, variations were found for the surface roughness. Nano-sized powders were used in this investigation, therefore the coatings achieved were very thin in comparison to those from conventional powders, also they showed high uniformity.benzene removal from air by means of photoelectrocatalytic reaction was achived.
Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee
J. H. Han et al., "Photocatalytic Properties of TiO2 Coatings Prepared by Cold Spray Process", Materials Science Forum, Vols. 510-511, pp. 130-133, 2006