Air stable magnetic bimetallic Fe-Ag nanoparticles for advanced antimicrobial treatment and phosphorus removal.
作者： Zdenka Marková , Karolı́na Machalová Šišková , Jan Filip , Jan Čuda , Milan Kolář
DOI: 10.1021/ES304693G
关键词:
摘要: We report on new magnetic bimetallic Fe–Ag nanoparticles (NPs) which exhibit significant antibacterial and antifungal activities against a variety of microorganisms including disease causing pathogens, as well prolonged action high efficiency phosphorus removal. The preparation these multifunctional hybrids, based direct reduction silver ions by commercially available zerovalent iron (nZVI) is fast, simple, feasible in large scale with controllable NP content size. microscopic observations (transmission electron microscopy, scanning microscopy/electron diffraction spectroscopy) phase analyses (X-ray diffraction, Mossbauer reveal the formation Fe3O4/γ-FeOOH double shell “redox” active nZVI surface. This probably responsible for stability NPs during storage air. Silver NPs, ranging between 10 30 nm depending initial concentration AgNO3, are firmly bound to Fe NPs...
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