Anodic TiO 2 nanotubes: Influence of top morphology on their photocatalytic performance

Alice Mazzarolo; Kiyoung Lee; Antonello Vicenzo; Patrik Schmuki

doi:10.1016/j.elecom.2012.05.037

Anodic TiO ₂ nanotubes: Influence of top morphology on their photocatalytic performance

Alice Mazzarolo, Kiyoung Lee, Antonello Vicenzo, Patrik Schmuki

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

The present work investigates the photocatalytic performance of TiO ₂ nanotubes with different tube top morphologies. Such morphological variations are obtained when growing self-organized nanotube arrays under different (but widely used) anodization conditions. We compare the most typical appearances of tube tops that are: i) grassy tubes, ii) tubes with initiation layers, iii) doubled anodized and iv) open tubes. The results show that tubes with an open, defined mouth have a significantly enhanced photocatalytic performance in open circuit, dye degradation experiments as well as when used as a photoanodes for photoelectrochemical water splitting.

Original language	English
Pages (from-to)	162-165
Number of pages	4
Journal	Electrochemistry Communications
Volume	22
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2012.05.037
State	Published - Aug 2012
Externally published	Yes

Bibliographical note

Funding Information:
The authors would like to acknowledge DFG and the Erlangen DFG cluster of excellence for financial support.

Keywords

Anodization
Morphology
Photocatalyst
TiO nanotube
Water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.elecom.2012.05.037

Cite this

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abstract = "The present work investigates the photocatalytic performance of TiO 2 nanotubes with different tube top morphologies. Such morphological variations are obtained when growing self-organized nanotube arrays under different (but widely used) anodization conditions. We compare the most typical appearances of tube tops that are: i) grassy tubes, ii) tubes with initiation layers, iii) doubled anodized and iv) open tubes. The results show that tubes with an open, defined mouth have a significantly enhanced photocatalytic performance in open circuit, dye degradation experiments as well as when used as a photoanodes for photoelectrochemical water splitting.",

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AU - Lee, Kiyoung

AU - Vicenzo, Antonello

AU - Schmuki, Patrik

N1 - Funding Information: The authors would like to acknowledge DFG and the Erlangen DFG cluster of excellence for financial support.

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AB - The present work investigates the photocatalytic performance of TiO 2 nanotubes with different tube top morphologies. Such morphological variations are obtained when growing self-organized nanotube arrays under different (but widely used) anodization conditions. We compare the most typical appearances of tube tops that are: i) grassy tubes, ii) tubes with initiation layers, iii) doubled anodized and iv) open tubes. The results show that tubes with an open, defined mouth have a significantly enhanced photocatalytic performance in open circuit, dye degradation experiments as well as when used as a photoanodes for photoelectrochemical water splitting.

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