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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.19 SNIP: 0.341 CiteScore™: 0.43

ISSN Print: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.2015015815
pages 221-229

COMPARATIVE STUDY OF THE EFFECT OF RF AND DBD PLASMA TREATMENT ON A PHOTOCATALYTIC ACTIVITY OF ZnO-BASED CATALYSTS

I. I. Filatova
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimost Ave., Minsk, 220072, Belarus
N. A. Savastenko
International Sakharov Environmental Institute, Belorussian State University, 23 Dolgobrodskaya Str., Minsk, 220070, Belarus
Veronika A. Lyushkevich
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimost Ave., Minsk, 220072, Belarus
N. I. Chubrik
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimost Ave., Minsk, 220072, Belarus
S.V. Goncharik
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimost Ave., Minsk, 220072, Belarus
V. M. Astreiko
International Sakharov Environmental Institute, Belorussian State University, 23 Dolgobrodskaya Str., Minsk, 220070, Belarus

ABSTRACT

This paper reports the effect of radio frequency (RF) and dielectric barrier discharge (DBD) plasma on the activity of ZnO-based photocatalysts. The photocatalytic activities of plasma-modified and untreated ZnO powders were evaluated by measuring the degradation of methyl orange in water under the UV irradiation. Solutions at an initial concentration of dye of 50 mg/L (typical concentration in textile wastewaters) were used in experiments. DRIFT and SEM were used to characterize the surface changes of the ZnO powders after the treatment. The DRIFT investigations revealed a new band at around 2205 cm−1 in an RF plasma-treated sample. It has been found that the performance of a DBD plasma-treated catalyst is superior to that of RF plasma-treated and untreated catalysts.


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