气候变化领域集成服务门户(CCPortal): Magnetite nanoparticles as efficient materials for removal of glyphosate from water

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DOI	10.1038/s41893-019-0452-6
	Magnetite nanoparticles as efficient materials for removal of glyphosate from water
	Park H.; May A.; Portilla L.; Dietrich H.; Münch F.; Rejek T.; Sarcletti M.; Banspach L.; Zahn D.; Halik M.
发表日期	2020
ISSN	2398-9629
起始页码	129
结束页码	135
卷号	3 期号:2
英文摘要	Glyphosate is one of the most commonly used herbicides, but, due to its suspected toxicity, it is simultaneously the most disputed one. Its worldwide application in huge quantities may lead to water concentrations that locally exceed statutory contamination levels. Therefore, a simple toolkit is required to remove glyphosate and its major metabolite from water. Here we show a method for the magnetic remediation of glyphosate from artificial and real water samples to below the maximum permissible value or even below the analytical detection limit. The chemical structure of glyphosate enables fast and stable covalent binding on the surface of magnetite (Fe3O4) nanoparticles, which act as catchers and carriers for magnetic removal. The small size of the nanoparticles (~20 nm diameter) provides a large active area. The glyphosate binding was analysed by infrared spectroscopy, thermogravimetric analysis and dynamic light scattering, while the remediation was investigated by liquid chromatography–mass spectrometry. Results from molecular dynamics simulations support the proposed binding mechanism. The combination of efficient remediation with inexpensive and recyclable magnetite nanoparticles suggests a simple method for the sustainable removal of glyphosate, and the concept may lead to a general approach to eliminate this class of organophosphorus compounds from water. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Herbicides; Infrared spectroscopy; Iron oxides; Lead removal (water treatment); Light scattering; Liquid chromatography; Magnetite; Mass spectrometry; Metabolites; Molecular dynamics; Nanomagnetics; Phosphorus compounds; Pollution; Thermogravimetric analysis; Analytical detection; Binding mechanisms; Contamination levels; Magnetic removals; Molecular dynamics simulations; Organophosphorus compounds; Real water samples; Water concentrations; Magnetite nanoparticles
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163403
作者单位	Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Materials Science, Organic Materials & Devices (OMD), Erlangen, Germany; Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Computer-Chemie-Centrum and Interdisciplinary Center for Molecular Materials, Erlangen, Germany; Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Erlangen, Germany
推荐引用方式 GB/T 7714	Park H.,May A.,Portilla L.,et al. Magnetite nanoparticles as efficient materials for removal of glyphosate from water[J],2020,3(2).
APA	Park H..,May A..,Portilla L..,Dietrich H..,Münch F..,...&Halik M..(2020).Magnetite nanoparticles as efficient materials for removal of glyphosate from water.Nature Sustainability,3(2).
MLA	Park H.,et al."Magnetite nanoparticles as efficient materials for removal of glyphosate from water".Nature Sustainability 3.2(2020).