Ultrasound to improve both synthesis and pollutants degradation based on metal nanoparticles supported on TiO2

摘要: Abstract Sonochemistry is based on acoustic cavitation, which consist in the formation, growth, and implosive collapse of bubbles within a liquid. Collapsing generate localized hot spots, characterized by temperatures up to 5000 K pressures 1800 atm. These extreme conditions allow producing variety nanostructured amorphous materials, as well they are advantageous for chemical processes. Ultrasound requires inexpensive equipment fewer steps than conventional methods. Combining ultrasound photocatalysis enhances performance processes, reduces reaction time, avoids use physical improves photocatalytic materials properties increasing their activity. Here, we reported positive effect US synthesizing Me-modified TiO2 (Me = Ag, Cu, Mn) pollutants degradation gas-phase; also, proved application removal organic compounds water. produced more efficient Me-doped TiO2, showed higher activity visible light. When combined with water treatment, mineralization increases.