Synthesis of Photoactive Materials by Sonication: Application in Photocatalysis and Solar Cells

Abstract

In recent years, a good number of methods have become available for the preparation of an important group of photoactive materials for applications in photocatalysis and solar cells. Nevertheless, the benefits derived from preparing those materials through unconventional approaches are very attractive from the green chemistry point of view. This critical review work is focused on sonication as one of these promising new synthetic procedures that allow control over size, morphology, nanostructure and tuning of catalytic properties. Ultrasound-based procedures offer a facile, versatile synthetic tool for the preparation of light-activated materials often inaccessible through conventional methods.

Phase-pure BiFeO3 produced by reaction flash-sintering of Bi2O3 and Fe2O3

“…8,9 Sonochemical-based methods use ultrasound irradiation to produce liquid phase reactions, induced by cavitation. 10 Electric field assisted-methods have shown that electric current enhances the kinetics of inter-diffusion processes in solid-state reactions. 11 In Spark Plasma Sintering (SPS), pulsed, high DC currents have been used for synthesis.…”

A correlation between cavitation bubble temperature, sonoluminescence and interfacial chemistry – A minireview

“…Acoustic cavitation is found to be useful in many applications. The redox radicals have been used to generate functional nanomaterials and for the degradation of organic pollutants in an aqueous environment [6] , [7] , [8] , [9] , [10] . For example, synthesis of biofunctional polyphenolic nanoparticles has been reported for use in targeted drug delivery [11] .…”

Understanding the Transformation of 2D Layered Perovskites to 3D Perovskites in the Sonochemical Synthesis

“…34 However, the dissimilarity in the precursors' solubility often led to a low yield of the final product. 35,36 First, Kesari et al have reported the room temperature bulk synthesis of MAPI by ultrasound sonication. 35 Jang et al synthesized the MHPs; their observation reveals that solubility is the deciding factor, and precursors with the same solubility have been used for their syntheses.…”