【摘 要】
：
Microfluidic biosynthesis of Au–Ag bimetallic nanoparticle in a tubular microreactor based on simultaneous reduction of HAuCl4 and AgNO3 precursors in the presence of Cacumen Platycladi (C.Platycladi)
【机 构】
：
Environmental Science Research Center,College of the Environment and Ecology,Xiamen University;Depar
【出 处】
：
第八届全国微全分析系统学术会议、第三届全国微纳尺度生物分离分析学术会议暨第五届国际微化学与微系统学术会议
论文部分内容阅读
Microfluidic biosynthesis of Au–Ag bimetallic nanoparticle in a tubular microreactor based on simultaneous reduction of HAuCl4 and AgNO3 precursors in the presence of Cacumen Platycladi (C.Platycladi) extract was studied.Au–Ag bimetallic NPs with Ag/Au molar ratios of 1:1 and 2:1 were synthesized,respectively.The alloy formation,morphology,structure and size were investigated by UV–Vis spectra analysis,transmission electron microscopy (TEM),high resolution TEM (HRTEM),scanning TEM (STEM),energy dispersive X-ray (EDX) analysis.In addition,the flow velocity profile was numerically analysed with computational fluid dynamics (CFD).Importantly,the process could be described as "rapid synthesis technique" and "green chemistry" since microreactor was employed and no additional synthetic reagents was used.Our work is anticipated to provide useful parameters for one-step continous-flow biosynthesis of bimetallic NPs in microreactors.
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