Green synthesis of Ag nanoparticles in montmorillonite

The Ag-MMT nanocomposite, was formed from AgNO3/MMT suspension. AgNO3 and Urtica dioica leaf extract were used as a silver precursor and reducing agent, respectively. The nanocomposite was characterized by x-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), transmission electron...

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Bibliographic Details
Published in:Materials letters 2016-04, Vol.168, p.28-30
Main Authors: Sohrabnezhad, Sh, Rassa, M., Seifi, A.
Format: Article
Language:English
Subjects:
Biomaterials
Fourier transforms
Infrared spectroscopy
Montmorillonite
Nanocomposite
Nanocomposites
Nanoparticles
Silver
Stability
Surface plasmon resonance
X-ray diffraction
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Summary:The Ag-MMT nanocomposite, was formed from AgNO3/MMT suspension. AgNO3 and Urtica dioica leaf extract were used as a silver precursor and reducing agent, respectively. The nanocomposite was characterized by x-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and UV–vis spectroscopy. The XRD showed the intercalation of Ag nanoparticles (Ag NPs) into the clay interlayer space. The UV–vis indicated a strong surface plasmon resonance (SPR) absorption band in the UV region, resulting from metallic Ag NPs. The intensity of the SPR band increased with time in the AgNO3/MMT suspension. But the result was opposite in case of Ag+ solution. The stability of Ag NPs in MMT was more than the stability without support. These results showed that Ag NPs can be used as effective growth inhibitors in different biological systems. [Display omitted] •There is low data about biosynthesis of Ag NPs in supports.•The Ag-MMT nanocomposite was synthesis by green method.•Urtica dioica leaf extract was used as a reducing agent.•The stability of Ag NP in MMT was more than without support.•The MMT prevented from aggregation of Ag NPs.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2016.01.025