Magnesium Ferrite (MgFe₂O₄) Nanoparticles for Photocatalytic Antibiotics Degradation

Titelangaben

Becker, Anna ; Kirchberg, Kristin ; Marschall, Roland:
Magnesium Ferrite (MgFe₂O₄) Nanoparticles for Photocatalytic Antibiotics Degradation.
In: Zeitschrift für Physikalische Chemie : International Journal of Research in Physical Chemistry and Chemical Physics. Bd. 234 (2020) Heft 4 . - S. 645-654.
ISSN 0942-9352
DOI: https://doi.org/10.1515/zpch-2019-1430

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Abstract

Removal of drug residuals in waste water by easy-separable catalysts is of fundamental interest for clean water provision by photocatalytic water remediation. Here, we present our studies to use the ferrimagnetic earth-abundant absorber MgFe2O4, prepared by microwave-assisted synthesis, for the photocatalytic removal of methylene blue and tetracycline from model solutions under dark and sunlight conditions. The surface of MgFe2O4 has a strong influence on the tetracycline removal, while more than 75% tetracycline degradation can already be achieved in 2 h with unmodified MgFe2O4. Using surface-modified MgFe2O4 nanoparticles, the adsorption of tetracycline is even more pronounced, however goes in line with release of the surface capping agent.