The Colloid Vibration Potential Effect from Silica Suspensions Using Electroacoustic Spectroscopy |Biomedgrid

Electroacoustic techniques are vital tools in order to characterize colloidal suspensions. When an acoustic wave is applied to a source of colloidal suspension, a vibration potential is generated as a result of the interaction. This particular responded potential is termed Colloid Vibration Potential (CVP) and is detected as an AC electrical signal. We address the physicochemical properties upon measuring the CVP for Silica Dioxide (SiO2) colloidal particles with three different concentrations of 0.5, 1 and 5% by wt., and a Particle Size Distribution (PSD) ranging from 35, 70, 100, 165 and 190nm. Our experimental technique has relatively eased access to the colloidal source and in addition provides an improved signal to noise ratio with implementation of a fully external detector to sense the generated responded signal.