Low Cost Nanoparticles Produced in Bulk
Image by NIMTE
Researchers at the Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology &. Engineering (NIMTE) have deloped a simple and viable route to produce various oxide micro/nano particles in kilogram quantities with low cost, simple and controllable process. According the route, the monodisperse micro/nano particles such as Silica, Titania, Hematite and Zinc Oxide were synthesized successfully.
The researchers systematically studied the characteristic and common formation law of typical monodispersed metal oxide nanoparticles, developed a simple, scalable and high yield approach for the production of various monodispersed micro/nano particles with controllable size, shape and property by using of the most inexpensive precursors. More remarkably, the monodispered spherical silica colloid with different sizes (8~100 nm) can be prepared by a phase-transfer method in large scale. The polydispersibility is less than 10%. Further, the kilogram scale productions of spherical titania, cigar-shaped hematite and columnar zinc oxide, with size range form 200 to 2000nm and polydispersity less than 15%, can also be achieved by simple one-step precipitation method. This will promote the applications of these materials in electronic, smart fluids and special coatings.
Source: Chinese Academy of Sciences
Contacts: Dr. Guo Jianjun