Green synthesis of silver nanoparticles by a novel method: Comparative study of their properties

被引：90
作者：
Ghaseminezhad, Seyedeh Masumeh [2 ]
Hamedi, Sepideh [1 ]
Shojaosadati, Seyed Abbas [1 ]
机构：
[1] Tarbiat Modares Univ, Chem Engn Fac, Biotechnol Grp, Tehran, Iran
[2] Tarbiat Modares Univ, Fac Engn, Nanomat Grp, Tehran, Iran
来源：
CARBOHYDRATE POLYMERS | 2012年 / 89卷 / 02期
关键词：
Silver nanoparticles; Green synthesis; Starch; Polysaccharide; STARCH; EXTRACT;
D O I：
10.1016/j.carbpol.2012.03.030
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
This study presents a novel green method using starch for the synthesis of silver nanoparticles (AgNPs). In this method, the fungal supernatant was added to a mixture of starch and silver nitrate solutions. The characteristics of AgNPs synthesized by three independent processes a modified polysaccharide method, a microbial method, and our novel method were compared. Dynamic light scattering (DLS) analysis revealed that the average sizes of AgNPs synthesized by the microbial method, the modified polysaccharide method, and our novel method were 84, 20, and 15 nm, respectively. The most stable AgNPs were generated by our novel method. The X-ray diffraction (XRD) spectrum of the products from the novel method showed that these AgNPs have high crystallinity. Fourier-transform infrared spectroscopy (FTIR) spectra demonstrated that the functional groups present in the products prepared by the novel method are a combination of the functional groups present in the AgNPs synthesized by the other two methods. (C) 2012 Elsevier Ltd. All rights reserved.
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收藏
页码：467 / 472
页数：6
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