ABSTRACT
The aim of this chapter is to shed light on the recent combined use of power ultrasound (US) and microwaves (MW) in the preparation of nanomaterials. After a general overview of this hybrid technique and applications, its specific additive or synergic effects will be thoroughly described. Maeda and Amemiya first described the surprising synergic effects in sono-luminescence and chemi-luminescence experiments carried out under simultaneous US/MW irradiation (Maeda and Amemiya, 1995). Although sequential or simultaneous irradiation with US and MW sources entails technical and safety considerations, their outstanding potential in chemico-physical modifications is now well established (Cravotto and Cintas, 2006, 2007).
