Flavin-conjugated iron oxide nanoparticles as enzyme-inspired photocatalysts for Azo Dye degradation
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Peer-reviewed
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Abstract
In this work, a new photocatalytic system consisting of iron oxide nanoparticles (IONPs), coated with a catechol-flavin conjugate (DAFL), is synthesized and explored for use in water remediation. In order to test the efficiency of the catalyst, the photodegradation of amaranth (AMT), an azo dye water pollutant, was performed under aerobic and anaerobic conditions, using either ethylenediaminetetraacetic acid (EDTA) or 2-(N-morpholino)ethanesulfonic acid (MES) as electron donors. Depending on the conditions, either dye photoreduction or photooxidation were observed, indicating that flavin-coated iron-oxide nanoparticles can be used as a versatile enzyme-inspired photocatalysts.
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Keywords
water remediation, photoreduction, photooxidation, azo dye, flavin, iron oxide nanoparticles, charge transfer, reactive oxygen species, electron donor
Journal Title
Catalysts
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Journal ISSN
2073-4344
2073-4344
2073-4344
Volume Title
10
Publisher
MDPI AG
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Engineering and Physical Sciences Research Council (1945802)
Engineering and Physical Sciences Research Council (EP/N509620/1)
Engineering and Physical Sciences Research Council (EP/N509620/1)
Funded by EPSRC DTC Studentship, grant number EP/N509620/1