The synthesis and coating process of TiO2 nanoparticles using CVD process

Title
The synthesis and coating process of TiO2 nanoparticles using CVD process
Authors
이희진송민영정종수박영권
Keywords
nanoparticle; TiO2; CVD process; synthesis; coating; CVD coating; T-junction apparatus; Acetaldehyde
Issue Date
2011-11
Publisher
Powder technology
Citation
VOL 214, NO 1, 64-68
Abstract
A chemical vapor deposition (CVD) process with T-junction apparatus was used to coat a TiO2 photocatalyst onto a glass bead. The amount of coating was controlled using the coating time. The coated bead catalysts were characterized using various techniques, such as scanning electron microscopy, Brunauer–Emmett– Teller, X-ray diffraction and X-ray photoelectron spectroscopy. The CVD technique was compared with the dip coating method using the commercial catalyst, P-25. The CVD-coated bead had a comparatively uniform and regular surface, while the dip-coated bead showed a partly un-coated surface. Additionally, the catalytic activity was investigated using the TiO2 coated beads as the photocatalyst in the decomposition of acetaldehyde. The result showed that a 60-min sample coating time gave the best photocatalytic activity.
URI
http://pubs.kist.re.kr/handle/201004/40348
ISSN
0032-5910
Appears in Collections:
KIST Publication > Article
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