Green synthesis and characteristic of core-shell structure silver/starch nanoparticles |
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| Authors: | Xianghua Gao Liqiao Wei Hong Yan Bingshe Xu |
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| Affiliation: | 1. Key Laboratory of Interface Science and Engineering in Advanced Materials of Taiyuan, University of Technology, Ministry of Education, Taiyuan 030024, PR China;2. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China;1. Laboratoire Sciences des Matériaux et Environnement, LMSE, University of Sfax, BP 802-3018 Sfax, Tunisia;2. Laboratoire Rhéologie et Procédés, Grenoble-INP, UJF Grenoble 1, UMR CNRS 5520, BP 53, 38041 Grenoble Cedex 9, France;1. Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, 1428, Ciudad Autónoma de Buenos Aires, Argentina;2. CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ), Buenos Aires, Argentina |
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| Abstract: | An eco-friendly method was put forward to synthesize Ag nanoparticles (Ag NPs) by using biodegradable starch as a stabilizing agent. The silver ion from AgNO3 was reduced by glucose in soluble starch solution. Morphological observation and characterization of Ag NPs were performed by using high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and UV–vis absorption spectroscopy. HRTEM showed that Ag NPs were covered by starch layer to form spherical core-shell Ag/starch NPs with diameter ranging from 5 to 20 nm. XRD pattern confirmed the presence of Ag NPs with face-centered cubic (fcc) structure. All these results indicated that starch played an important role in stabilizing Ag NPs. |
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