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Comparison of photocatalytic and photoelectrochemical behavior of TiO2 nanotubes prepared by different organic electrolyte

CHIN WEI LAI1, SRIMALA SREEKANTAN1,*

Affiliation

  1. School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia Engineering Campus, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia

Abstract

T itania ( TiO 2 nanotubes with different surface morphologies were successfully synthesized by anodization process in glycerol and ethylene glycol electrolytes. T he morphology of TiO 2 nanotubes was observed via FESEM and the crystal structure was studied by XRD analysis It was found that different morphologies of TiO2 nanotubes show an evident influence on photocatalytic and photoelectrochemical behavior. From the results obtained, the high aspect ratio TiO2 nanotubes with small intertube spacing, which w ere synthesized from ethylene glycol electrolyte demonstrated better photocatalytic and photoelectro che mical behavior compar ed to low aspect ratio TiO2 nanotubes with large intertube spacing which were synthesized from glycerol electrolyte. The elaboration of this observation is described in detail in this paper..

Keywords

TiO2 nanotubes Anodization Photocatalytic Photoelectrochemical.

Citation

CHIN WEI LAI, SRIMALA SREEKANTAN, Comparison of photocatalytic and photoelectrochemical behavior of TiO2 nanotubes prepared by different organic electrolyte, Optoelectronics and Advanced Materials - Rapid Communications, 6, 1-2, January-February 2012, pp.82-86 (2012).

Submitted at: Nov. 28, 2011

Accepted at: Feb. 20, 2012