Dispersion and Electrophoretic Deposition of Titania Particles

The dispersion of titania particles in different solvents and doping of dispersants at different levels were studied. Results showed butanol is a good solvent and triethanolamine(TEA) is a good dispersant at 3wt% level for TiO2. Based on the dispersion results, titania coatings were prepared by electrophoretic deposition in organic solvents with addition of PEG and without. The deposition amount and the photocatalytic activity of titania coatings were investigated.