Photocatalytic Degradation of 4-tert-butylphenol Using Solar Light Responsive Ag2CO3
Mergenbayeva S. Atabaev T.S. Vakros J. Mantzavinos D. Poulopoulos S.G.
December 2022MDPI
Catalysts
2022#12Issue 12
In this work, Ag2CO3 was prepared via a solution-based method and was further characterized by XRD, Raman spectroscopy, SEM/EDS analysis, and UV-VIS spectroscopy. SEM results revealed the formation of micro-sized particles with a rectangular shape. The photocatalytic activity of the catalyst was evaluated in the degradation of 4-tert-butylphenol (4-t-BP) under simulated solar light irradiation. The effects of 4-t-BP initial concentration (2.5–10 ppm), catalyst dosage (100–300 mg/L), different types of lamp sources, and water matrix were investigated. Complete 4-t-BP (5 ppm) degradation was achieved after 60 min by Ag2CO3 (200 mg/L). The effect of anions such as CO32−, HCO3−, NO3−, and Cl- in the concentration range of 100–300 mg/L was also studied. CO32− promoted the photocatalytic degradation process, while HCO3− and NO3− exhibited an inhibition effect, which was marked with increasing HCO3− and NO3− concentrations. The presence of Cl− at the concentration of 100 mg/L increased 4-t-BP degradation, but higher concentrations inhibited the photocatalytic reaction. Cyclic experiments showed that the catalyst practically retained its catalytic activity toward 4-t-BP degradation after three successive experimental runs.
4-tert-butylphenol , degradation , heterogeneous photocatalysis , solar light
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Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, Astana, 010000, Kazakhstan
Department of Chemical Engineering, University of Patras, Caratheodory 1, University Campus, Patras, GR-26504, Greece
School of Sciences and Engineering, University of Nicosia, Nicosia, 2417, Cyprus
Department of Chemical and Materials Engineering
Department of Chemistry
Department of Chemical Engineering
School of Sciences and Engineering
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