ABSTRACT
The effect of ultrasound based on the acoustic cavitation phenomenon is found to be a new, environmentally friendly strategy for the functional materials fabrication. Oxide-based nanocomposites can be simply sonochemically produced, not only in core-shell configuration. Control of nanoscale dispersion of filler is one of the important points for the fabrication of nanocomposites that can be achieved by ultrasonication and modification techniques. Ultrasound-assisted fabrication of the core-shell typed microbeads with nanotubes coatings allows them to obtain complex conducting hybrid-type nanocomposites or magnetic nanocomposite structures. The sonochemistry method enables the synthesis of oxides-based nanocomposites with core-shell morphology that are often unachievable by traditional methods or surpassed in the known materials with shape, size and nano/microstructure control under fast reaction conditions as well as superior photocatalytic activity. The principal factors that govern enhancement in the physical properties of polymer matrix nanocomposites are the extent of encapsulation and nature of the dispersion of nanofillers in a polymer matrix.
