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Selective Removal of the Outer Shells of Anodic TiO 2 Nanotubes
Author(s) -
Li Hui,
Cheng JianWen,
Shu Shiwei,
Zhang Jie,
Zheng Lingxia,
Tsang Chun Kwan,
Cheng Hua,
Liang Fengxia,
Lee ShuitTong,
Li Yang Yang
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201201874
Subject(s) - anodizing , anode , materials science , electrolyte , nanotechnology , electrochemistry , photocatalysis , chemistry , composite material , organic chemistry , electrode , aluminium , catalysis
A facile electrochemical method to selectively remove the outer walls of anodic TiO 2 nanotubes by leaving the as‐anodized nanotubes in the same electrolyte and applying an electric field parallel to the anodic film for several minutes is reported. The better‐separated single‐walled TiO 2 nanotubes thus obtained show significantly improved photocatalytic efficiency compared with their non‐etched counterparts.