【摘 要】
：
This study reported the rapid and green preparation of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) under microwave irradiation.In the synthe
【机 构】
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South China University of Technology,China
【出 处】
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The 4th Conference on Nanomaterials(cn2015)2015年第四届纳米材料学术研讨会
论文部分内容阅读
This study reported the rapid and green preparation of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) under microwave irradiation.In the synthesis,lignin with reducing groups and spatial three-dimensional structure was used as reducing and stabilizing agents without other chemical reagents.The lignin-Ag NPs were prepared with diameters around 24 nm,and the lignin-Au NPs around 20 nm.It was found that the nanoparticles were almost spherical,and stable in solution due to the capping of nature polymer lignin.The suggested mechanism is as follows: during the formation of AgNPs,lignin was oxidized and the side chains of lignin were partly disrupted into small molecules,such as hydrocarbon and alcohol.The prepared Ag NPs can act as selective and sensitive nanoprobes for Hg2+ detection with 19 other metal ions as control.
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