Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 457, Issue -, Pages 141-147Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2015.07.004
Keywords
Copper nanoparticles; Huisgen [3+2] cycloaddition; Catalytic activity
Categories
Funding
- Iranian Nano Council
- University of Qom
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During this study, we report the green synthesis of copper nanoparticles (Cu NPs) using Ginkgo biloba L leaf extract as a reducing and stabilizing agent under surfactant-free conditions. The formation of Cu NPs is monitored by recording the UV-vis absorption spectra. The green synthesized Cu NPs are characterized by TEM, EDS, FT-IR and UV-visible techniques. According to UV-vis results, the synthesized Cu NPs by this method are quite stable even after one month indicating the stability of Cu NPs. In terms of environmental impact and economy, metallic Cu NPs offer several advantages over homogeneous and traditional heterogeneous catalysts. In addition, due to the increased metal surface area, Cu NPs shows very high catalytic activity for the Huisgen [3 + 2] cycloaddition of azides and alkynes at room temperature. Furthermore, the catalyst can be simply recovered and reused several times with almost no loss in activity. (C) 2015 Elsevier Inc. All rights reserved.
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