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Synthesis of highly monodisperse silica nanoparticles in the microreactor system
來源： 作者：蘇敏 時間：2017-12-21 16:25:29
| 關鍵詞： | Nanoparticle; Silica; Silica Nanoparticle; Microreactor; Monodispersity; |
| 英文摘要： | Abstract(#br)To avoid a poor mixing rate and local inhomogeneities in batch reactor systems, and to shorten the length of microchannels in microreactor systems, a new combined micromixer/microreactor/batch reactor system was used for the synthesis of colloidal silica particles. The silica particles with different sizes (from 20 nm to 2 μm) and size distributions (which were characterized by PDI from 0.01 to 0.40) were controllably synthesized by varying the concentration of reactants and the operating parameters in this system. The long microchannel with small diameter demonstrated a good mixing efficiency, and which produced small and uniform silica particles. In addition, the introduction of inert gas into the system intensified the mixing, and the silica particles with decreased size... |