期刊论文

Synthesis of Carbon Dots from Silkworm Excrement and Its Performance Characterization

中文

广州化工

1001-9677

2018

46

17

30-32,39

10.3969/j.issn.1001-9677.2018.17.015

湖南省大学生研究性学习和创新性试验计划项目（No:SCX1729）；

本校为第一机构

以蚕沙为碳源,经一定条件高温直接碳化或水热碳化,所得的产物经过纯化后得到发蓝色荧光的碳点溶液。通过透射电镜（TEM）,紫外-可见吸收光谱,傅里叶红外光谱（FTIR）等对其性能进行表征。结果表明以蚕沙为原料制备的碳点荧光强度大,表面富含氨基和羟基,具有很强的亲水性,在pH 4~11的范围内和盐溶液中皆具有良好的荧光性能。此外考察了碳点对金属离子的响应性能,结果表明该碳点在选择性检测Cd^2＋和Pb^2＋方面具有潜在的应用价值。

Carbon quantum dots was obtained from silkworm excrement,under high temperature carbonization or hydrothermal carbonization. Transmission electron microscopy（TEM）, UV-Visible spectra, fluorescence spectra,Fourier transform infrared spectra（FTIR） were used to characterize its properties. Results showed that the carbon quantum dots were uniform,good dispersion,no reunion phenomenon,with good salt resistance and alkali resistance,its surface was rich of amino and hydroxyl groups,and had a strong hydrophilicity. In addition,the response of carb...