The need for efficient extraction of plant constituents with a high yield and purity limitations to conventional techniques that are limited by mass transfer, has resulted in the development new processes. Sonochemistry involves cavitation induced pressure fluctuations generated ultrasound waves liquid medium. Ultrasound can be effectively used increase transfer rate solid-liquid present work e...

A comprehensive investigation of ultrasonic frequency and its role in sonochemical activity and sonoluminescence (SL) has been performed. SL spectra and intensity were examined at four frequencies (205, 358, 618, and 1071 kHz) and in the presence of varying argon and oxygen saturation ratios. A series of highenergy reactions induced by the extreme temperatures and pressures obtained within a mi...

Recent advances in nanostructured materials have been led by the development of new synthetic methods that provide control over size, morphology, and nano/microstructure. The utilization of high intensity ultrasound offers a facile, versatile synthetic tool for nanostructured materials that are often unavailable by conventional methods. The primary physical phenomena associated with ultrasound ...

The sonication of ionic organic liquids leads to decomposition of the liquids. Multibubble sonoluminescence spectra and headgas analysis reveal a variety of decomposition products from the sonolysis of N,N'-dialkylimidazolium ionic liquids. The decomposition is a result of acoustic cavitation, which generates localized hot spots from the implosive collapse of bubbles in the ionic liquids. Despi...