Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization

Hahn R, Stark M, Killian M, Schmuki P (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Catalysis: Science and Technology Royal Society of Chemistry

Book Volume: 3

Pages Range: 1765-1770

Journal Issue: 7

DOI: 10.1039/c3cy00021d

Abstract

In the present work, we demonstrate an in situ electrochemical doping approach during the growth of TiO2 nanotubular layers formed by rapid breakdown anodization (RBA). For this, several oxygen containing metal anions, as doping species (WO42$-$, Al(OH)4$-$, SiO32$-$, MoO42$-$, SnO44$-$, CrO42$-$ and MnO4$-$), were investigated as additives to the electrolyte and successfully incorporated into the nanotubular oxide during the ultrafast tube growth. A linear relationship between the concentration of anions in the electrolyte and the doping concentration in the oxide was found. The resulting doped layers were tested, after heat treatment, for their UV photocatalytic activity using the degradation of AO7 (an organic model compound routinely used for determining the kinetics of photocatalytic decomposition reactions).

Authors with CRIS profile

Robert Hahn Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) Martin Stark
Manuela Killian Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik) Patrik Schmuki Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

How to cite

APA:

Hahn, R., Stark, M., Killian, M., & Schmuki, P. (2013). Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization. Catalysis: Science and Technology, 3(7), 1765-1770. https://dx.doi.org/10.1039/c3cy00021d

MLA:

Hahn, Robert, et al. "Photocatalytic properties of in situ doped TiO2-nanotubes grown by rapid breakdown anodization." Catalysis: Science and Technology 3.7 (2013): 1765-1770.

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