Flavin-Conjugated Iron Oxide Nanoparticles as Enzyme-Inspired Photocatalysts for Azo Dye Degradation
Flavin-Conjugated Iron Oxide Nanoparticles as Enzyme-Inspired Photocatalysts for Azo Dye Degradation
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DOI：
10.3390/catal10030324
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发表时间：
2020-03
期刊：
影响因子：
3.9
通讯作者：
Samer I. Nehme;Leander Crocker;L. Fruk
中科院分区：
文献类型：
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作者：
Samer I. Nehme;Leander Crocker;L. Fruk
在这项工作中，合成了一种由氧化铁纳米粒子（IONP）组成的新型光催化系统，该系统涂有儿茶酚黄素缀合物（DAFL），并探索用于水体修复。为了测试催化剂的效率，使用乙二胺四乙酸（EDTA）或2-（N-吗啉代）乙磺酸（MES）作为电子给体，在好氧和厌氧条件下对偶氮染料水污染物苋菜红（AMT）进行光降解。根据条件的不同，可以观察到染料光还原或光氧化，这表明黄素涂覆的氧化铁纳米颗粒可以用作多功能的酶激发光催化剂。
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.