Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 71, Issue -, Pages 73-78Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2016.08.010
Keywords
TiO2 nanotubes; Robust nanotube membranes; Anatase; Organic dye photodegradation
Categories
Funding
- DFG cluster of excellence EAM [EXC 315]
- DFG FunCOS [DI 1613/6-1]
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We report the fabrication of defect-free crystalline TiO2 nanotube (NT) membranes that maintain a full anatase phase composition up to an annealing temperature of 950 degrees C. Key is the use of a lactic acid electrolyte for the growth of the anodic nanotube layers. These nanotube layers are mechanically sufficiently robust to fabricate, by chemical etching, lift-off and annealing, both-end-open membranes that feature no morphological damage over their entire surface area and thickness. We illustrate the beneficial use of the pure anatase membranes for a flow-through photocatalytic application, i.e., the photodegradation of Acid Orange 7. However, it is anticipated that these pure anatase membranes will also have a wide range of uses in photo(electrochemical) applications of TiO2. (C) 2016 Elsevier B.V. All rights reserved.
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