猪骨氮掺杂碳量子点制备及其用于检测Co<sup>2+</sup>

钱玟; 何利; 潘无双; 陈燕华; 王惠; 刘书亮; 陈姝娟; 刘爱平

doi:10.37188/CJL.20210260

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猪骨氮掺杂碳量子点制备及其用于检测Co²⁺

发光学应用及交叉前沿 | 更新时间：2021-11-23

- 猪骨氮掺杂碳量子点制备及其用于检测Co²⁺
  增强出版
- Preparation of Pig Bone Nitrogen-doped Carbon Quantum Dots and Application in Detection of Co²⁺
- 发光学报 2021年42卷第11期页码：1818-1827
- 作者机构：
  
  四川农业大学　食品学院，四川　雅安　625014
- 作者简介：
  
  [ "钱玟(1997-)，男，四川巴中人，硕士研究生，2019年于四川农业大学获得学士学位，主要从事食品检测荧光探针技术的研究。E-mail: 1980385367@qq.com" ]
  [ "何利(1984-)，女，重庆人，博士，副教授，硕士研究生导师，2011年于四川大学获得博士学位，主要从事食品资源综合利用、食品安全检测技术的研究。E-mail: helifood@163.com" ]
- 基金信息：
  
  国家重点研发计划子课题(2019YFC1605302-3)
- DOI：10.37188/CJL.20210260
  中图分类号： O482.31
- 纸质出版日期：2021-11-01，
  
  收稿日期：2021-08-04，
  
  修回日期：2021-08-11，
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钱玟, 何利, 潘无双, 等. 猪骨氮掺杂碳量子点制备及其用于检测Co²⁺[J]. 发光学报, 2021,42(11):1818-1827.

Wen QIAN, Li HE, Wu-shuang PAN, et al. Preparation of Pig Bone Nitrogen-doped Carbon Quantum Dots and Application in Detection of Co²⁺[J]. Chinese Journal of Luminescence, 2021,42(11):1818-1827.
钱玟, 何利, 潘无双, 等. 猪骨氮掺杂碳量子点制备及其用于检测Co²⁺[J]. 发光学报, 2021,42(11):1818-1827. DOI： 10.37188/CJL.20210260.

Wen QIAN, Li HE, Wu-shuang PAN, et al. Preparation of Pig Bone Nitrogen-doped Carbon Quantum Dots and Application in Detection of Co²⁺[J]. Chinese Journal of Luminescence, 2021,42(11):1818-1827. DOI： 10.37188/CJL.20210260.

摘要

以猪骨和乙二胺为碳源和氮源，通过一步水热法合成了氮掺杂碳量子点(N-CQDs)，并优化其制备条件。通过透射电子显微镜(TEM)、傅里叶变换红外光谱(FT-IR)、X射线衍射图(XRD)、紫外-可见吸收光谱(UV-Vis)和X射线光电子能谱(XPS)技术，研究了N-CQDs的结构和光学性质及元素组成。所制备的N-CQDs具有较高的量子产率(26.4%)，平均粒径为2.34 nm，在365 nm紫外光照射下呈现出明亮的蓝色荧光。研究发现Co

对N-CQDs有良好的猝灭作用，从而建立了一种快速检测Co

的新方法。N-CQDs荧光猝灭强度与Co

浓度在0~15 μg/mL和30~80 μg/mL呈良好的线性关系，检出限为20 μg/L，加标回收率为97.26%~109.14%

RSD

3.24%，能够应用于实际水样中Co

含量的测定。

Abstract

Nitrogen-doped carbon quantum dots(N-CQDs) were successfully synthesized using pig bone and ethylenediamine as carbon and nitrogen sources by one-step hydrothermal method. Structure

optical properties and element composition of N-CQDs have been studied by transmission electron microscope(TEM)

Fourier transform infrared spectroscopy(FT-IR)

X-ray diffractometer patterns(XRD)

UV-Vis absorption spectroscopy(UV-Vis) and X-ray photoelectron spectroscopy(XPS) technologies. The synthesized N-CQDs have a high quantum yield(26.4%)

an average particle size of 2.34 nm

showing bright blue fluorescence under a 365 nm UV lamp. The study found that Co

had a good quenching effect on N-CQDs

so as to establish a new method for rapid detection of Co

. The fluorescence quenching intensity of N-CQDs has a good linear relationship with the concentration of Co

at 0-15 μg/mL and 30-80 μg/mL

the detection limit is 20 μg/L

and the recovery rate of standard addition is 97.26%-109.14%

RSD

3.24%

which can be applied to the determination of Co

content in actual water samples.

关键词

氮掺杂碳量子点猪骨荧光检测Co2+

Keywords

nitrogen-doped carbon quantum dotspig bonefluorescence detectionCo2+

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猪骨氮掺杂碳量子点制备及其用于检测Co2+

Preparation of Pig Bone Nitrogen-doped Carbon Quantum Dots and Application in Detection of Co2+

DOI：10.37188/CJL.20210260

摘要

Abstract

关键词

Keywords

references

猪骨氮掺杂碳量子点制备及其用于检测Co²⁺

Preparation of Pig Bone Nitrogen-doped Carbon Quantum Dots and Application in Detection of Co²⁺