Immobilization of TiO2 Photocatalysts for Water Treatment in Geopolymer Based Coatings

This study presents a simple and sustainable coating technology for the deposition of photocatalytic coatings based on titanium dioxide geopolymers, which requires no thermal post-treatment. Titania powder P25, potassium silicate calcium aluminate-based hardener were dispersed in water applied to aluminum substrates using paintbrush, roller spray gun. The air-dried 12 h. activities tested via degradation an aqueous methylene blue solution batch reactor under artificial UV-A light. gun-based yielded well-adhering with high activity. Brushed inhomogeneous unstable. presented method producing is very apply does not require complex technologies or energy-intensive treatments.