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Updated: Sep 27, 2025
A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
Published on: April 10, 2019
Rapid and continuous fabrication of TiO2 nanoparticles encapsulated by polyimide fine particles using a multistep
Takayuki Ishizaka1, Maya Chatterjee1, Hajime Kawanami2
1Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST) 4-2-1 Nigatake, Miyagino-ku Sendai Miyagi 983-8551 Japan t-ishizaka@aist.go.jp.
Abstract:
PI fine particles encapsulating a large number of TiO2 nanoparticles (PI FPs/TiO2 NPs) were successfully fabricated rapidly and continuously by the emulsion re-precipitation method using a multistep flow synthetic system. The fabricated material, PI FPs/TiO2 NPs, was spherical in structure with a diameter of 214 nm, and the mean size of TiO2 NPs was 5.2 nm. Line scan elemental analysis with SEM-EDX showed that the TiO2 NPs were disproportionately embedded near the surface of the PI FPs. UV-vis transmission spectra revealed high UV shielding efficiency of the PI FPs/TiO2 NPs as the NPs are located near the surface.
