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Characterization and photocatalytic performance of SnO2-CNT nanocompositesCharacterization and photocatalytic performance of SnO 2 -CNT nanocomposites

Other Titles
Characterization and photocatalytic performance of SnO 2 -CNT nanocomposites
Authors
Kim, Sung PhilChoi, Myong YongChoi, Hyun Chul
Issue Date
Dec-2015
Publisher
Elsevier BV
Keywords
Carbon nanotube; Tin oxide; Nanocomposite; Photocatalyst; Organic dye
Citation
Applied Surface Science, v.357, pp 302 - 308
Pages
7
Indexed
SCI
SCIE
SCOPUS
Journal Title
Applied Surface Science
Volume
357
Start Page
302
End Page
308
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/16861
DOI
10.1016/j.apsusc.2015.09.044
ISSN
0169-4332
1873-5584
Abstract
Tin oxide-carbon nanotube (SnO2-CNT) nanocomposites were prepared by depositing SnO2 nanopartides onto thiolated CNT surfaces to develop highly efficient photocatalysts. The structure of SnO2-CNT5 was characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The photocatalytic activity of the sample was benchmarked using the photodegradation of methylene blue (MB) and methyl orange (MO) in aqueous solution under UV-vis light irradiation. The SnO2-CNT5 exhibited enhanced photocatalytic activities compared with bulk SnO2, SnO2 nanoparticles, and commercial P25 TiO2. The enhanced activity was ascribed to the CNT addition. The presence of CNTs effectively suppressed an electron-hole recombination and favored a reactant and product mass transport. A plausible photocatalytic mechanism is proposed. (C) 2015 Elsevier B.V. All rights reserved.
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Choi, Myong Yong
자연과학대학 (화학과)
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