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WO 3 /TiO 2 Nanotubes with Strongly Enhanced Photocatalytic Activity
Author(s) -
Paramasivam Indhumati,
Nah YoonChae,
Das Chittaranjan,
Shrestha Nabeen K.,
Schmuki Patrik
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201000397
Subject(s) - photocatalysis , anatase , anodizing , nanotube , oxide , materials science , nanotechnology , electrochemistry , chemical engineering , titanium oxide , chemistry , catalysis , carbon nanotube , metallurgy , organic chemistry , engineering , aluminium , electrode
Mixed oxide photocatalysts : WO 3 ‐ containing TiO 2 nanotubes were prepared by self‐organizing electrochemical anodization of TiW alloys (Ti 0.2 W see figure, and Ti 9 W). It is shown that a content of only 0.2 at % WO 3 with respect to the titania nanotubes leads to a very significant increase of the photocatalytic reaction rate compared not only to pure anatase TiO 2 nanotubes, but also in comparison with any other modified TiO 2 nanotube system reported up to now.