Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (3): 555.doi: 10.7503/cjcu20180638

• Polymer Chemistry • Previous Articles     Next Articles

Preparation of Carbon Dots from Soy Milk Powder and Fluorescent Nanofibers Containing Carbon Dots

GAO Ningxiao1, XU Yulong1, LIU Yong2,*()   

  1. 1. College of Mechanical and Electrical Engineering, 2. College of Materials Science and Engineering,Beijing University of Chemical Technology, Beijing 100029, China
    2. College of Materials Science and Engineering,Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2019-09-13 Online:2019-11-28 Published:2018-11-28
  • Contact: LIU Yong E-mail:yongliu@mail.buct.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21374008).

Abstract:

Carbon dots were prepared by using hydrothermal synthesis method with soy milk powder as the carbon source and organosilane as a passivating agent. Electrospinning technology was adopted using carbon dot and polyvinyl pyrrolidone(PVP) blending solution as the spinning solution to prepare nanofibers containing carbon dots. The properties of the carbon dots were characterized by ultraviolet absorption spectroscopy, fluorescence absorption spectroscopy, and fluorescence emission spectroscopy. The results showed that the carbon dot dispersion solution extracted from soy milk powder emitted strong cyan fluorescence under the excitation of 340—540 nm ultraviolet light. The fluorescence emission peak appeared at 550 nm and there was a weak redshift with the increase of excitation wavelength. The obtained carbon-containing nanofibers have a uniform diameter distribution, good morphology, and retain excellent fluorescence properties.

Key words: Fluorescent nanofiber containing carbon dot, Electrospinning, Biomedical material, Organosilane, Hydrothermal synthesis method

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