Materials Reports 2019, Vol. 33 Issue (z1): 314-317 |
METALS AND METAL MATRIX COMPOSITES |
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Gold Nanoflower Without Surface Modifier Prepared by One-step Method and Its Surface-Enhanced Raman Scattering Property |
ZHANG Yan
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Economy and Management Department, Civil Aviation Management Institute of China, Beijing 100102 |
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Abstract Au nanoflowers with diameter about 250 nm have been synthesized by a one-step method without surface modifier. There are many characte-ristic methods to be used to research the structure and formation mechanism of the Au nanoflowers, such as scanning and transmission electron microscopy (SEM and TEM), selected area electron diffraction SAED analyses, and X-ray diffraction (XRD). The growth mechanism has been well simulated and predicted by employing growth model to explain morphological evolution of kinetics mechanism. For testing p-mercapto benzoic acid (PMBA) molecule, the Au nanoflowers have exhibited the high surface-enhanced Raman scattering activity, and the enhancement factor (EF) can reach as high as 7.5×105. In view of unique properties, the Au nanoflowers as high-performance SERS substrates appear to be very promising for applications.
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Published: 05 July 2019
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About author:: Yan Zhang is a lecturer at Civil Aviation Management Institute of China. From September 2010 to July 2015, she received a Ph.D. in Engineering in Material Phy-sics and Chemistry from Beijing University of Aeronautics and Astronautics. From December 2015 to October 2017, she left Nankai University to teach at the Civil Aviation Management Institute of China. She has published many journal papers as the first author. Her research interests includes synthesis of gold nanomate-rials, surface-enhanced Raman spectroscopy, biosensors, organic catalysis and so on. |
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