Rapid and continuous fabrication of TiO2 nanoparticles encapsulated by polyimide fine particles using a multistep flow-system and their application. Issue 4 (7th January 2021)

• Record Type: Journal Article
• Authors: Ishizaka, Takayuki; Chatterjee, Maya; Kawanami, Hajime
• Is Part Of: RSC advances. Volume 11:Issue 4(2021)
• Page Start: 2083
• Page End: 2087
• Publication Date: 2021-01-07
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra09810h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : We rapidly and continuously fabricated TiO2 nanoparticles encapsulated by polymer fine particles, and the fabricated nanomaterials showed high UV shielding efficiency. 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.