Suppressed recombination of electrons and holes and its role on the improvement of photoreactivity of flame-synthesized TiO2 nanopowders

Authors
Jie, HyunSeockPark, HoonChae, Keun-HwaAnpo, MasakazuPark, Jong-Ku
Issue Date
2009-03-05
Publisher
ELSEVIER SCIENCE BV
Citation
CHEMICAL PHYSICS LETTERS, v.470, no.4-6, pp.269 - 274
Abstract
An in-situ NEXAFS study was performed to directly investigate the change in the hole structures in the conduction band of TiO2 nanopowders synthesized using a flame method under UV irradiation. The anatase/rutile phase boundary was found to suppress the hole-electron recombination, leading to improved photoreactivity of TiO2 nanopowders. (C) 2009 Elsevier B. V. All rights reserved.
Keywords
PHOTOCATALYTIC ACTIVITY; HF SOLUTION; ANATASE; PARTICLES; DEGRADATION; CALCINATION; HYDROLYSIS; 2-PROPANOL; REACTIVITY; MORPHOLOGY; PHOTOCATALYTIC ACTIVITY; HF SOLUTION; ANATASE; PARTICLES; DEGRADATION; CALCINATION; HYDROLYSIS; 2-PROPANOL; REACTIVITY; MORPHOLOGY; photoreactivity; TiO2 nanopowders
ISSN
0009-2614
URI
https://pubs.kist.re.kr/handle/201004/132656
DOI
10.1016/j.cplett.2009.01.065
Appears in Collections:
KIST Article > 2009
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