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Flavin-conjugated iron oxide nanoparticles as enzyme-inspired photocatalysts for Azo Dye degradation

Published version
Peer-reviewed

Type

Article

Change log

Authors

Nehme, SI 
Crocker, L 

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
2073-4344

Volume Title

10

Publisher

MDPI AG
Sponsorship
Engineering and Physical Sciences Research Council (1945802)
Engineering and Physical Sciences Research Council (EP/N509620/1)
Funded by EPSRC DTC Studentship, grant number EP/N509620/1