Preparation and characterization of sulfur-doped TiO(2)/Ti photoelectrodes and their photoelectrocatalytic performance

J Hazard Mater. 2008 Aug 15;156(1-3):552-9. doi: 10.1016/j.jhazmat.2007.12.087. Epub 2008 Jan 3.

Abstract

Sulfur-doped TiO(2)/Ti photoelectrodes were prepared by anodization and characterized by SEM, AFM, XRD, XPS, UV-vis and SPS. The results of investigation indicated that S(4+) and S(6+) were dispersed on the surface of TiO(2) nanoparticles. The doping with an appropriate amount of sulfur expanded the response range of TiO(2)/Ti photoelectrodes to visible light, and enhanced the separation of photoinduced electrons from cavities. The photoelectrocatalytic performance test run with sulfur-doped TiO(2)/Ti photoelectrodes under Xenon light indicated that Na(2)SO(3) concentration of 750 mg/L and voltage of 160 V were the optimal conditions for preparation of sulfur-doped TiO(2)/Ti photoelectrodes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Electrodes*
  • Microscopy, Atomic Force
  • Microscopy, Electron, Scanning
  • Oxidation-Reduction
  • Photochemistry
  • Spectrophotometry, Ultraviolet
  • Sulfur / chemistry*
  • Titanium / chemistry*
  • X-Ray Diffraction

Substances

  • titanium dioxide
  • Sulfur
  • Titanium