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Photocatalytic Effect for TiO2/ACF Composite Electrochemically Prepared with TNB Electrolyte

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2007, 8(3), pp.177~183
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Ming-Liang Chen 1 Chang-Sung Lim 2 Won-Chun Oh 3

1Department of Advanced Materials & Science Engineering
2Hanseo University
3Chungnam University

Candidate

ABSTRACT

TiO2/ACF composites were prepared by the electrochemical method with Titanium (IV) n-butoxide (TNB) electrolyteunder diferent electrochemical opera 2/ACF composites decrease with the increase ofelectrochemical operation time. There is a single crystal structure which is anatase in all of the samples from the data of XRD.The SEM micrphotographs of TiO2/ACF composites show that the TiO2 particles were well mixed with the ACF. There are Oand P with strong C and Ti peaks in all samples from EDX results, and it also shows that a decrease of the C content with aincreasing of Ti content with increasing of the electrochemical operation time in the over all composites. DSC cures show thatthe exothermic peak of all composites at 560oC represents the transformation heat of amorphous parts to anatase phase and thediscontinuous grain growth of the transformed anatase particles. Finally, the excellent photoactivity of TiO2/ACF composites(especially, ACFT10) could be attributed that the decrease of concentration of MB can be concluded to be much faster for theadsorption by ACF than for photocatalytic decomposition by TiO2.

Citation status

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