Uniform size micromeres functional material gets a lot of attention in the fields of polymer chemistry

medicine and chemical industry

catalysis and separation. It is incovenient to prepare monodisperse and uniformity micrometer material by current conventional technology. With microfluidic technology

the droplet was generated in the chip and following to solidify the droplet online to prepare various of monodisperse and size uniformity microsphere. Since the droplet was a Si sol of slow-solidified

the nonporous SiO2 microsphere with a BET surface area of 572 m2·g-1 and a variance coefficient of microsphere diameters of about 2% were produced by introducing precipitator from the interface of droplet. Because the droplets were a material of fast-precipited

such as Zn

Fe

or Cu ion

a hollow microsphere consisted of hydrate oxide or mixed oxide was produced. As the droplet contains both materials of fast-precipitated and flow-solidified

such as Si sol containing of Fe ion

SiO2 microsphere with a homogeneous dispersed Fe in it was obtained by adjusting the introducing velocity of precipitator into the droplet.