油-水界面法一步合成疏水性荧光碳点
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摘要
本文用油-水界面法,以价廉易得的柠檬酸和十六胺为原料一步制备疏水性荧光碳点(OCDs)。通过条件优化,得到制备OCDs的最优条件。利用各种仪器对所制得的OCDs的光学性质、结构和形貌等进行全面的研究和分析。制得的OCDs的平均粒径约为3.5 nm,为具有一定晶型的类石墨结构。OCDs的荧光稳定性好,未出现光漂白现象,其荧光量子产率为80.0%,比大多数已知文献报道的产率都要高,具有优异的光学性能。
The hydrophobic fluorescent carbon dots(OCDs)were prepared in one step by using the oil-water interface method with cheap and readily available citric acid and hexadecylamine as raw materials.The optimum preparation conditions of OCDs were obtained by optimizing the preparation conditions.The prepared OCDs with an average particle size of 3.5 nm have excellent dispersibility and stability.The fluorescence quantum yield is 80.0%,larger than those from most of all the known reports.
The hydrophobic fluorescent carbon dots(OCDs)were prepared in one step by using the oil-water interface method with cheap and readily available citric acid and hexadecylamine as raw materials.The optimum preparation conditions of OCDs were obtained by optimizing the preparation conditions.The prepared OCDs with an average particle size of 3.5 nm have excellent dispersibility and stability.The fluorescence quantum yield is 80.0%,larger than those from most of all the known reports.
引文
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