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

• Autorzy: Houria Ghodbane , Oualid Hamdaoui , Jeroen Vandamme , Jim Van Durme , Patrick Vanraes , Christophe Leys , Anton Y. Nikiforov
• 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.

EN

Słowa kluczowe

EN

glow discharge; wastewater; non-thermal plasma; advanced oxidation processes

• Czasopismo: Open Chemistry
• Rocznik: 2015
• Tom: 13
• Numer: 1

Daty

otrzymano

2014-01-28

zaakceptowano

2014-05-29

online

2014-11-17

Twórcy

autor

Houria Ghodbane

• Laboratory of Environmental Engineering, Department of Process Engineering, Badji Mokhtar-Annaba, University, 23000 Annaba, Algeria

autor

Oualid Hamdaoui

• Laboratory of Environmental Engineering, Department of Process Engineering, Badji Mokhtar-Annaba, University, 23000 Annaba, Algeria

autor

Jeroen Vandamme

• Research Group Molecular Odor Chemistry, KU Leuven, Campus Gent (KAHO Sint-Lieven), Faculty of Engineering Technology, 9000 Gent, Belgium

autor

Jim Van Durme

• Research Group Molecular Odor Chemistry, KU Leuven, Campus Gent (KAHO Sint-Lieven), Faculty of Engineering Technology, 9000 Gent, Belgium

autor

Patrick Vanraes

• 3Department of Applied Physics, - Faculty of engineering and Architecture, Ghent University, Technicum B4, 9000 Ghent, Belgium

autor

Christophe Leys

• 3Department of Applied Physics, - Faculty of engineering and Architecture, Ghent University, Technicum B4, 9000 Ghent, Belgium

autor

Anton Y. Nikiforov

• 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,

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Identyfikatory

DOI

10.1515/chem-2015-0040