Ag–SiO2–TiO2 nanocomposite coatings with enhanced photoactivity for self-cleaning application on building materials

• Published in: Applied catalysis. B, Environmental Vol. 178; pp. 144 - 154
• Main Authors: Pinho, Luís, Rojas, María, Mosquera, Maria J.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2015
• Subjects: Ag nanoparticles; Mesoporous Ag-SiO2-TiO2 photocatalyst; Photocatalysis; Self-cleaning; Surface plasmon resonance; Surface plasmon resonance; Self-cleaning; Ag nanoparticles; Mesoporous Ag-SiO2-TiO2 photocatalyst; Photocatalysis

•Ag–TiO2–SiO2 photocatalysts are easily applied as sols to form coatings on stone.•N-octylamine acts as dispersant, catalyzer, pore coarsener and reducing agent.•Ag NPs (2–5nm size) improve the photoactivity of TiO2–SiO2 nanocomposites.•The coatings show good adhesion and preserve stone esthetics. T...