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MOTOLA, M. ČAPLOVIČOVÁ, M. KRBAL, M. SOPHA, H. THIRUNAVUKKARASU, G. GREGOR, M. PLESCH, G. MACÁK, J.
Originální název
Ti3+ doped anodic single-wall TiO2 nanotubes as highly efficient photocatalyst
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In this work, a two-step treatment of TiO2 nanotube (TNT) layers towards enhanced photocatalytic performance is presented. TNT layers with a thickness of similar to 7 mu m and an average inner diameter of similar to 190 nm were prepared via electrochemical anodization of Ti foil in a fluoride containing ethylene glycolbased electrolyte. To improve the photocatalytic activity of the produced TNT layers a two-step post-treatment was conducted. First, the inner shell of the native double-wall TNT layers was removed via a mild pre-annealing followed by a selective etching treatment of the inner shell in piranha solution yielding single-wall TNT layers. Second, reduction via annealing in H-2/Ar atmosphere was performed. The resulting Ti3+ doped single-wall TNT layers possess 100% enhancement of photocatalytic activity compared to their non-treated counterparts. (C) 2019 Elsevier Ltd. All rights reserved.
Klíčová slova
TiO2 nanotube layers; Single-wall; H-2 Surface reduction; Photoelectrochemistry; Photocatalysis
Autoři
MOTOLA, M.; ČAPLOVIČOVÁ, M.; KRBAL, M.; SOPHA, H.; THIRUNAVUKKARASU, G.; GREGOR, M.; PLESCH, G.; MACÁK, J.
Vydáno
20. 1. 2020
Nakladatel
PERGAMON-ELSEVIER SCIENCE LTD
Místo
OXFORD
ISSN
0013-4686
Periodikum
Electrochimica Acta
Ročník
331
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
135374-1
Strany do
135374-8
Strany počet
8
URL
https://www.sciencedirect.com/science/article/pii/S0013468619322467?via%3Dihub