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Photocatalytic Degradation of Quinol and Blue FFS Acid Using TiO2 and Doped TiO2

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2010, 11(4), pp.332-335
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Padmini. E. 1 Prakash Singh K. 1 Lima Rose Miranda 1

1Anna University

Candidate

ABSTRACT

The photodegradation of the model compounds Quinol, an aromatic organic compound and Acid blue FFS, an acid dye of chemical class Triphenylmethane was studied by using illumination with UV lamp of light intensity 250W. TiO2 and TiO2 doped with Boron and Nitrogen was used as catalyst. The sol-gel method was followed with titanium isopropoxide as precursor and doping was done using Boron and Nitrogen. In photocatalytic degradation, TiO2 and doped TiO2 dosage, UV illumination time and initial concentration of the compounds were changed and examined in order to determine the optimal experimental conditions. Operational time was optimized for 360 min. The optimum dosage of TiO2 and BN doped TiO2 was obtained to be 2 mgL-1 and 2.5 mgL-1 respectively. Maximum degradation % for quinol and Blue FFS acid dye was 78 and 95 respectively, at the optimum dosage of BN-doped TiO2 catalyst. It was 10 and 4% higher than when undoped TiO2 catalyst was used.

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