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ISSN Druckformat: 1093-3611
ISSN Online: 1940-4360
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COMPARATIVE STUDY OF THE EFFECT OF RF AND DBD PLASMA TREATMENT ON A PHOTOCATALYTIC ACTIVITY OF ZnO-BASED CATALYSTS
ABSTRAKT
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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López Cristian Daniel, Cedeño-Mata Michelle, Dominguez-Pumar Manuel, Bermejo Sandra, Surface modification of polytetrafluoroethylene thin films by non-coherent UV light and water treatment for electrowetting applications, Progress in Organic Coatings, 149, 2020. Crossref