1. Synthesis of Monodisperse, Quasi-Spherical SilverNanoparticles with Sizes Defined by the Nature of Silver Precursors.
- Author
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Li, Houshen, Xia, Haibing, Ding, Wenchao, Li, Yijing, Shi, Qiurong, Wang, Dayang, and Tao, Xutang
- Subjects
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SILVER nanoparticles , *NANOSTRUCTURED materials synthesis , *CHEMICAL precursors , *WATER , *AQUEOUS solutions , *SODIUM compounds , *VITAMIN C - Abstract
Monodisperse,quasi-spherical silver nanoparticles (Ag NPs) withcontrolled sizes have been produced directly in water via adding theaqueous solutions of the mixtures of AgNO3and sodium citrateto boiling aqueous solutions of ascorbic acid (AA). Different compounds,including NaCl, NaBr, KI, Na2SO4, Na2CO3, Na2S, and Na3PO4, are added to the AgNO3/citrate mixture solutions toform new silver compounds with fairly low solubility in water, whichare used as precursors instead of soluble Ag+ions to synthesizeAg NPs via AA/citrate reduction. This enables us not only to producemonodisperse, quasi-spherical Ag NPs but also to tune the sizes ofthe resulting NPs from 16 to 30 nm according to the potential of newsilver precursors as well as the concentrations of anions. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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