In a study published in Nanotechnology, PbWO4 nanostructures with different morphologies, such as dendritic, flowery, and star-like, have been synthesized via a sonochemical route. It has been proved that the ultrasonic irradiation plays a crucial role in the morphology of the product.

Zn(II)bis(1-(2-pyridylazo)-2-naphthol) (Zn(PAN)2) complex nanorods have been successfully synthesized via a sonochemical method. The formation of nanorods could be attributed to the inter-particle collision induced by the collapse of bubbles.

In their work, the researchers used a microemulsion system to successfully synthesize single-crystalline PbF2 nanorods via a sonochemical route. The ultrasonic irradiation has been proved to have an important effect on the final morphology of PbF2.

The high-speed microturbulence induced by ultrasonic irradiation could serve as nanoscale chiesels in the formation of pores. In the recent work published in Nanotechnology, porous Cu2O nanospheres have been successfully synthesized via a sonochemical route. It was found that the high-speed microturbulence could drive liquid into the nanospheres to produce pores.

Further reading

[1] Xu L, Jiang L P and Zhu J J 2009 Nanotechnology 20 045605
[2] Xu K, Mao C J, Geng J and Zhu J J 2007 Nanotechnology 18 315604
[3] Pan H C, Liang F P, Mao C J and Zhu J J 2007 Nanotechnology 18 195606
[4] Geng J, Lv Y, Lu D J and Zhu J J 2006 Nanotechnology 17 2614