Preparation of Al-TiO2 nanotubes and their photocatalytic activities

Al-TiO 2 nanotubes having an Al/Ti molar ratio of 0.38 were prepared using a sol-gel derived electrospinning and subsequent calcination at intervals of 50 °C from 500 to 650 °C to investigate the effect of calcination temperature on the crystal structure and the photocatalytic activity of methylene...

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Bibliographic Details
Published in:Journal of electroceramics 2019-06, Vol.42 (3-4), p.124-128
Main Authors: Lee, Hyeran, Lee, Deuk Yong, Lee, Myung-Hyun, Kim, Bae-Yeon, Song, Yo-Seung
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Crystallography and Scattering Methods
Electrochemistry
Glass
Materials Science
Natural Materials
Optical and Electronic Materials
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Summary:Al-TiO 2 nanotubes having an Al/Ti molar ratio of 0.38 were prepared using a sol-gel derived electrospinning and subsequent calcination at intervals of 50 °C from 500 to 650 °C to investigate the effect of calcination temperature on the crystal structure and the photocatalytic activity of methylene blue (MB). XRD results revealed that the Al-TiO 2 nanotubes were composed of anatase (45~46%) and rutile (53~55%). The Barrette-Emmett-Teller (BET) surface area and the degradation kinetic constant increased dramatically from 151 to 226 m 2 /g and from 2.0 × 10 −2  min −1 to 6.3 × 10 −2  min −1 , respectively. The Al-TiO 2 nanotubes calcined above 600 °C exhibited enhanced MB degradation (100%) compared to that of the TiO 2 nanotubes (27%) mainly due to the larger BET area.
ISSN:1385-3449
1573-8663
DOI:10.1007/s10832-018-0159-5