Green Biosynthesis of Silver Nanoparticles Using (Thunb.) Leaf Extract for Reductive Catalysis.

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2019
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Abstract
This article reports on silver nanoparticles (AgNPs) that were green-synthesized by using (Thunb.) leaf extract and their use for the catalytic degradation of reactive dyes. The properties of biogenic AgNPs were characterized using UV-vis absorption spectroscopy, field emission scanning electron microscope (FESEM), X-ray powder diffraction (XRD), transmission electron microscope (TEM), Fourier transforming infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDS), and selected area electron diffraction (SAED) analysis. The UV-vis spectroscopy and X-ray analyses confirmed the formation of AgNPs and showed the strong absorbance around 467 nm with surface plasmon resonance (SPR). The mean diameter of biogenic AgNPs at room (20 °C), moderate (50 °C), and high temperatures (80 °C) were 9.26 ± 2.72, 13.09 ± 3.66, and 17.28 ± 5.78 nm, respectively. The reaction temperature had significant impacts on the sizes of synthesized AgNPs. The higher the synthesis temperature, the larger size and the lower catalysis activity for reductive decomposition of reactive dyes via NaBH₄. The results supported a bio-green approach for developing AgNPs with a small size and stable degradation activity of reactive dyes over 92% in 30 min by using (Thunb.) leaf extract at pH 7, 20 °C, and 1:10 ratio of silver nitrate added to the leaf extract.
Reference Key
yu2019green Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yu, Chen;Tang, Jingchun;Liu, Xiaomei;Ren, Xinwei;Zhen, Meinan;Wang, Lan;
Journal Materials (Basel, Switzerland)
Year 2019
DOI
E189
URL
Keywords
lamb beef venison bimethylation one-step transmethylation antioxidant enzymes lipid peroxidation rootstock nacl salinity stress pistacia vera

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