期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 94, 期 1, 页码 148-152出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2005.04.023
关键词
chemical reduction; atomic force microscopy (AFM); optical properties
This work presents a simple method to produce silver nanoparticles through AgNO3 chemical reduction in a continuous media. Aminosilanes act as catalytic reactors and superficial modifiers of Ag nanoparticles, inhibiting their growth and avoiding aggregation. Nanoparticles formation is studied by UV-vis spectroscopy, atomic force microscopy (AFM) and dynamic light scattering (DLS) techniques. The extent of the reduction reaction increases with either a higher aminosilane concentration or with aminosilanes with a higher number of amine groups. The number of amine groups in the aminosilane has also a strong effect on the size of the resulting Ag particles. The morphology of the Ag nanoparticles obtained is spherical and the mean size is of approximately 5 nm. (c) 2005 Elsevier B.V. All rights reserved.
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