4. Other uses of ultrasound in chemistry

4.1 Sonophotocatalysis

Like ultrasound, photochemistry can degrade a wide range of chemicals by promoting the formation of highly reactive hydroxyl radicals ${}^{•}\text{OH}$ . A number of studies have been carried out to identify possible affinities between these two degradation processes . They tend to demonstrate that, although these two protocols are often associated with radical chemistry, different phenomena may be involved. Photocatalysis enables direct electron transfer to...