铜绿微囊藻
光催化
可见光谱
化学工程
蓝藻
藻类
纳米技术
材料科学
化学
催化作用
光电子学
细菌
有机化学
植物
生物
工程类
遗传学
作者
Gongduan Fan,Junkai Zhang,Jiajun Zhan,Jing Luo,Jiuyang Lin,Fangshu Qu,Banghao Du,Dingsheng Tang,Binghan Xie,Zhongsen Yan
标识
DOI:10.1016/j.jhazmat.2021.126407
摘要
In this work, a recyclable self-floating A-GUN-coated (Ag/[email protected]3N4@UIO-66(NH2)-coated) foam was fabricated for effective inactivation of Microcystis aeruginosa (M. aeruginosa) under visible light. The floating photocatalyst was able to inactivate 98% of M. aeruginosa within 180 min under the visible-light irrigation, and the floating photocatalyst exhibited a stable performance in various conditions. Moreover, the inactivation efficiency can still maintain nearly 92% after five times recycle experiments, showing excellent photocatalytic stability. Furthermore, effects of A-GUN/SMF floating catalyst on the physiological properties, cellular organics, and algal functional groups of M. aeruginosa were studied. The floating photocatalyst can not only make full use of excellent photocatalytic activities of A-GUN nanocomposite, but also promote contact between catalyst and algae, and realize the effective recovery of the photocatalyst. Finally, possible photocatalytic inactivation mechanisms of algae were obtained, which provides references for removing cyanobacteria blooms in real water bodies.
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