Nanosized Carbon Dots from Organic Matter and Biomass
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2016年第4期
论文作者：李媛媛 CHEN Tong MA Yulong
文章页码：823 - 826
摘 要：Carbon nanoparticles（C-dots） were prepared by refluxing the combustion soots of candles and corn stalk in nitric acid.The synthesized C-dots were characterized.The results showed a sharp increase in oxygen content and a sharp decrease in carbon content after oxidation.The C-dots had-OH and-CO2H groups introduced which made them hydrophilic.However,their difference was also obvious.The C-dots from candle soot had a 10-45 nm broad particle size distribution,and those from corn stalk soot had a 6-18 nm relatively small and narrow size distribution.The C-dots were mainly of sp2 and sp3 carbon structure different from the C-dots of diamond-like structure from candle soot.Interestingly,two kinds of C-dots all exhibited unique photoluminescent properties.The obtained C-dots have potential applications in a broad range of areas.
李媛媛1,2，CHEN Tong3，MA Yulong1,2
1. Key Laboratory of Energy and Chemical Engineering,Ningxia University2. School of Chemistry and Chemical Engineering,Ningxia University3. Zhenjiang Entry-exit Inspection and Quarantine Bureau
摘 要：Carbon nanoparticles（C-dots） were prepared by refluxing the combustion soots of candles and corn stalk in nitric acid.The synthesized C-dots were characterized.The results showed a sharp increase in oxygen content and a sharp decrease in carbon content after oxidation.The C-dots had-OH and-CO2H groups introduced which made them hydrophilic.However,their difference was also obvious.The C-dots from candle soot had a 10-45 nm broad particle size distribution,and those from corn stalk soot had a 6-18 nm relatively small and narrow size distribution.The C-dots were mainly of sp2 and sp3 carbon structure different from the C-dots of diamond-like structure from candle soot.Interestingly,two kinds of C-dots all exhibited unique photoluminescent properties.The obtained C-dots have potential applications in a broad range of areas.
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