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Keywords:

  • green chemistry;
  • photocatalysis;
  • synthesis methods;
  • titania;
  • ultrasound

Abstract

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.