Flavin-Conjugated Iron Oxide Nanoparticles as Enzyme-Inspired Photocatalysts for Azo Dye Degradation


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Authors
Crocker, Leander 
Fruk, Ljiljana 
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.

Description
Keywords
water remediation, photoreduction, photooxidation, azo dye, flavin, iron oxide nanoparticles, charge transfer, reactive oxygen species, electron donor
Journal Title
Catalysts
Conference Name
Journal ISSN
2073-4344
Volume Title
10
Publisher
MDPI