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2015 | 13 | 1 |
Tytuł artykułu

Degradation of AB25 dye in liquid medium by atmospheric pressure non-thermal plasma and plasma combination with photocatalyst TiO2

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this work, degradation of the anthraquinonic dye Acid Blue 25 by non-thermal plasma at atmospheric pressure with and without photocatalyst is investigated. Titanium dioxide (TiO2) is used as a photocatalyst. The dye degradation by plasma in the presence of TiO2 is investigated as a function of TiO2 concentration, dye concentration and pH. The degradation rate is higher in acidic solutions with pH of 2 to 4.3, especially at pH 2, and decreases to 0.38 mg L-1 min-1 with the increase of pH from 2 to 5.65. A similar effect is observed in basic media, where a higher degradation rate is found at pH = 10.3. The degradation rate increases in the presence of TiO2 compared to the discharge without photocatalysis. The results show that the degradation of the dye increases in the presence of TiO2 until the catalyst load reaches 0.5 g L-1 after which the suppression of AB25 degradation is observed. The results indicate that the tested advanced oxidation processes are very effective for the degradation of AB25 in aqueous solutions.
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Wydawca

Czasopismo
Rocznik
Tom
13
Numer
1
Opis fizyczny
Daty
otrzymano
2014-01-28
zaakceptowano
2014-05-29
online
2014-11-17
Twórcy
  • Laboratory of Environmental Engineering, Department of Process Engineering, Badji Mokhtar-Annaba, University, 23000 Annaba, Algeria
  • Laboratory of Environmental Engineering, Department of Process Engineering, Badji Mokhtar-Annaba, University, 23000 Annaba, Algeria
  • Research Group Molecular Odor Chemistry, KU Leuven, Campus Gent (KAHO Sint-Lieven), Faculty of Engineering Technology, 9000 Gent, Belgium
  • Research Group Molecular Odor Chemistry, KU Leuven, Campus Gent (KAHO Sint-Lieven), Faculty of Engineering Technology, 9000 Gent, Belgium
  • 3Department of Applied Physics, - Faculty of engineering and Architecture, Ghent University, Technicum B4, 9000 Ghent, Belgium
  • 3Department of Applied Physics, - Faculty of engineering and Architecture, Ghent University, Technicum B4, 9000 Ghent, Belgium
  • Department of Applied Physics, - Faculty of engineering and Architecture, Ghent University, Technicum B4, 9000 Ghent, Belgium; Laboratory of Non-Linear Processes, Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia, anton.nikiforov@ugent.be
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_chem-2015-0040
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