Sonochemistry in colloidal systems

Abstract

This chapter discusses the chemical reactions that occur in various colloidal systems that are exposed to ultrasound. A brief overview of the way ultrasound initiates chemical reactions is given, followed by a comprehensive examination of the chemical reactions, responsible for the dissolution and formation of colloids, primarily in aqueous solution, although some systems in non-aqueous media are reported. The chemical reactions, occurring in solutions exposed to ultrasound stem, from the violent collapse of small bubbles, usually in the μm to sub mm size range, that are present in the solution. The positive pressure amplitude of a sound wave can cause bubbles of a certain size to rapidly co..