Journal
MATERIALS RESEARCH BULLETIN
Volume 42, Issue 12, Pages 2230-2236Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2007.01.001
Keywords
nanostructures; chemical synthesis; crystal growth; electron microscopy
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Multi-non-metal-doped TiO2 nanotubes were fabricated by electrochemical anodization of Ti in the mixed acid electrolyte of C2H2O4 center dot 2H(2)O and HIO3 containing NH4E The samples were annealed in air and characterized by FE-SEM, XRD, XPS and DRS. The results indicate non-metals of N, F and I are successfully doped into TiO2 nanotubes in aqueous solution by adjusting the electrolyte composition. The multi-non-metal-doped samples display a significant visible-light response. Additionally, the atomic concentration of non-metals is closely related with the electrolyte composition. (c) 2007 Elsevier Ltd. All rights reserved.
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