A Kinetic Study on Photocatalytic and Sonophotocatalytic Degradation of Textile Dyes
  • Metaadatok
Tartalom: https://pp.bme.hu/ch/article/view/8535
Archívum: PP Chemical Engineering
Gyűjtemény: Articles
Cím:
A Kinetic Study on Photocatalytic and Sonophotocatalytic Degradation of Textile Dyes
Létrehozó:
Yetim, Tuba
Tekin, Taner
Közreműködő:
TUBITAK
Kiadó:
Budapest University of Technology and Economics
Dátum:
2016-04-01
Téma:
photocatalysis, sonolysis, sonophotocatalysis, degradation kinetic
Tartalmi leírás:
In the present study, an artificial effluent solution was used for investigating the degradation of dyestuffs by sonolytic, photocatalytic and sonophotocatalytic methods in the presence of TiO2. This solution contained the mixture of C. I. Acid Red 27, C. I. Disperse Red 92 and C. I. Acid Orange 10 dyestuffs. The effect of parameters such as initial concentration of dyestuffs, light intensity, the amplitude of sonolysis and temperature on the degradation processes was studied. When the degradation data of the three methods for constant parameters were compared after 80 min.; the degradation values were approximately 19, 68 and 82 % for sonolytic, photocatalytic and sonophotocatalytic processes respectively. According the results purely sonolysis has an inconsiderable effect for the degradation of dyes. Also, when the parameters were applied for determining the kinetics of processes the sonophotocatalytic degradation rate followed pseudo-first order kinetics with respect to concentration of dyestuff analogously photocatalytic process. It was observed that the reaction rate accelerated in the presence of ultrasound energy in the course of the experiments. The most effective process was sonophotocatalytic on the degradation and an equation was derived including the effect of sonolysis for sonophotocatalytic degradation kinetics.
Nyelv:
angol
Típus:
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Formátum:
application/pdf
application/pdf
Azonosító:
10.3311/PPch.8535
Forrás:
Periodica Polytechnica Chemical Engineering; Vol 61 No 2 (2017); 102-108
1587-3765
0324-5853
Kapcsolat: