Fabrication of Spherical Titania Inverse Opal Structures Using Electro-Hydrodynamic Atomizationopen access
- Authors
- Lim, Jong-Min; Jeong, Sehee
- Issue Date
- Nov-2019
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Keywords
- colloidal crystal; inverse opal; electro-hydrodynamic atomization; photonic ball; titania
- Citation
- Molecules, v.24, no.21
- Journal Title
- Molecules
- Volume
- 24
- Number
- 21
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/4108
- DOI
- 10.3390/molecules24213905
- ISSN
- 1420-3049
- Abstract
- Spherical PS/HEMA opal structure and spherical titania inverse opal structure were fabricated by self-assembly of colloidal nanoparticles in uniform aerosol droplets generated with electro-hydrodynamic atomization method. When a solution of PS/HEMA nanoparticles with uniform size distribution was used, PS/HEMA nanoparticles self-assembled into a face-centered cubic (FCC) structure by capillary force with the evaporation of the solvent in aerosol droplet, resulting in a spherical opal structure. When PS/HEMA nanoparticles and anatase titania nanoparticles were dispersed simultaneously into the solution, titania nanoparticles with relatively smaller size were assembled at the interstitial site of PS/HEMA nanoparticles packed in the FCC structure, resulting in a spherical opal composite structure. Spherical titania inverse opal structure was fabricated after removing PS/HEMA nanoparticles from the spherical opal composite structure by calcination.
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Collections - College of Engineering > Department of Chemical Engineering > 1. Journal Articles
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