Sonication‐Induced Pathways in the Synthesis of Light‐Active Catalysts for Photocatalytic Oxidation of Organic Contaminants

Heterogeneous photocatalysis is becoming increasingly important due to the variety of its applications and multidisciplinary aspects. Applications such as water/air detoxification-disinfection, solar-energy storage, high-value-chemical production, optoelectronics, and sensors are some of the most promising. In recent years, the development of environmentally-friendly and cost-efficient procedures for material synthesis that could substitute the old ones has been on demand. Unconventional and soft techniques, such as sonication, offer enormous possibilities for the synthesis of a broad spectrum of nanostructured materials, among them photocatalysts. This Review will focus the readers' attention on ultrasound-induced methodologies used for the preparation of nanostructured photocatalysts (e.g., supported nanoparticles, semiconductors) and their application in the photocatalytic oxidation of organic contaminants.