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

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

Authors: Jie, HyunSeock; Park, Hoon; Chae, Keun-Hwa; Anpo, Masakazu; Park, 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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