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Sol–gel synthesis and characterization of heterogeneous Fenton catalysts for enhanced carbamazepine degradation
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Sol–gel synthesis and characterization of heterogeneous Fenton catalysts for enhanced carbamazepine degradation
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Journal Article
Sol–gel synthesis and characterization of heterogeneous Fenton catalysts for enhanced carbamazepine degradation
2023
Overview
A novel nanostructured Fenton-like catalyst based on La-doped MgFe
2
O
4
for enhanced carbamazepine degradation was prepared by facile sol-gel synthesis. The physicochemical properties of the obtained catalyst were studied by DTA-TG, XRD, FTIR, SEM-EDX, TEM, and nitrogen adsorption-desorption methods. The effect of calcination temperature on the structure and phase composition of the catalyst was assessed. The influence of the conditions of the catalytic process (dose of catalyst, H
2
O
2
concentration, and pH of model solution) on the efficiency of degradation of an antiepileptic drug, carbamazepine, was scrutinized. The performed studies provided a non-toxic and chemically stable Fenton-like catalyst which demonstrated enhanced efficiency in carbamazepine degradation. The optimal conditions were found as catalyst dose of 0.5 g L
−1
, H
2
O
2
concentration of 20.0 mmol L
−1
and pH of 6.0. The apparent pseudo-first-order rate constant reached up to 0.086 min
−1
for MgLa
0.1
Fe
1.9
O
4
catalyst. Due to its high specific area and enhanced catalytic efficiency, the developed Fenton-like heterogeneous catalyst based on La-doped magnesium ferrite can be used for treating wastewaters polluted with pharmaceutically active compounds.
Graphical abstract
Highlights
Fenton-like catalysts based on La-doped magnesium ferrite were obtained.
Obtained catalysts were characterized by XRD, BET, SEM, TEM methods.
MgLa
0.1
Fe
1.9
O
4
catalyst demonstrated high catalytic CBZ degradation.
Publisher
Springer US,Springer Nature B.V
