开关式氧化锌量子点荧光探针制备及其特异性检测Cu<sup>2+</sup>应用

崔葆; 黄秋梅; 戎西林; 崔美佳; 程昊; 冯军; 黄文艺

doi:10.37188/CJL.20210408

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开关式氧化锌量子点荧光探针制备及其特异性检测Cu²⁺应用

发光学应用及交叉前沿 | 更新时间：2022-04-20

- 开关式氧化锌量子点荧光探针制备及其特异性检测Cu²⁺应用
  增强出版
- Preparation of Switchable ZnO-NH₂ QDs Fluorescent Probe and Its Application in Specific Detection of Cu²⁺
- 发光学报 2022年43卷第4期页码：620-632
- 作者机构：
  
  1.广西科技大学　生物与化学工程学院，广西糖资源绿色加工重点实验室，广西　柳州　545006
  2.蔗糖产业省部共建协同创新中心，广西　南宁　530004
- 作者简介：
  
  [ "崔葆(1996-)，女，安徽马鞍山人，硕士研究生，2018年于安徽科技学院获得学士学位，主要从事纳米材料的研究。E-mail: 1214391639@qq.com" ]
  [ "黄文艺(1975-)，男，广西南宁人，博士，高级实验师，2009年于南京大学获得博士学位，主要从事纳米材料方面的研究。E-mail: hwylz18@163.com" ]
- 基金信息：
  
  广西糖资源绿色加工重点实验室开放课题(GXTZY202006)
- DOI：10.37188/CJL.20210408
  中图分类号： O482.31;TQ132.41
- 纸质出版日期：2022-04-01，
  
  收稿日期：2021-12-25，
  
  修回日期：2022-01-10，
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崔葆, 黄秋梅, 戎西林, 等. 开关式氧化锌量子点荧光探针制备及其特异性检测Cu²⁺应用[J]. 发光学报, 2022,43(4):620-632.

Bao CUI, Qiu-mei HUANG, Xi-lin RONG, et al. Preparation of Switchable ZnO-NH₂ QDs Fluorescent Probe and Its Application in Specific Detection of Cu²⁺[J]. Chinese Journal of Luminescence, 2022,43(4):620-632.
崔葆, 黄秋梅, 戎西林, 等. 开关式氧化锌量子点荧光探针制备及其特异性检测Cu²⁺应用[J]. 发光学报, 2022,43(4):620-632. DOI： 10.37188/CJL.20210408.

Bao CUI, Qiu-mei HUANG, Xi-lin RONG, et al. Preparation of Switchable ZnO-NH₂ QDs Fluorescent Probe and Its Application in Specific Detection of Cu²⁺[J]. Chinese Journal of Luminescence, 2022,43(4):620-632. DOI： 10.37188/CJL.20210408.

摘要

采用溶胶凝胶法制备出一种荧光性能稳定的氧化锌量子点(ZnO-NH

QDs)，并对其进行紫外-可见光谱(UV-Vis)、傅里叶变换红外光谱(FTIR)、X 射线衍射(XRD)、透射电子显微镜(TEM)、X 射线光电子能谱(XPS)、荧光(PL)表征。基于Cu

对ZnO-NH

QDs动态荧光猝灭且Cu

可与邻苯二胺(OPD，为非荧光物质)反应生成具有黄色荧光的2

3-二氨基吩嗪(DAP)的机理，开发了一种具有特异性识别Cu

的ZnO-NH

QDs荧光探针以及ZnO-NH

QDs+Cu

+OPD荧光传感系统。该探针在40~9 000 nmol/L的线性范围内检测Cu

，检测限(LOD)为3.93 nmol/L。在自来水中的加标回收率范围为98%~100.58%，在柳江水中Cu

的加标回收率范围为97.43%~101.47%。实验结果表明该探针对Cu

有较好的选择性和准确度，能为金属离子Cu

的荧光快速检测提供一种新思路。

Abstract

In this paper

a kind of fluorescence stable ZnO-NH

QDs was prepared by sol-gel method. ZnO-NH

QDs were characterized by UV-visible spectroscopy(UV-Vis)

Fourier transform infrared spectroscopy(FTIR)

X-ray diffraction(XRD)

transmission electron microscopy(TEM)

X-ray photoelectron spectroscopy(XPS)

and fluorescence(PL). Based on the dynamic fluorescence quenched of ZnO-NH

QDs by Cu

and the mechanism that Cu

can react with o-phenylenediamine(OPD

a non-fluorescent substance) to form 2

3-diaminophenothiazine (DAP) with yellow fluorescence

a fluorescent probe for ZnO-NH

QDs with specific recognition of Cu

and a ZnO-NH

QDs+Cu

+OPD fluorescence sensing system were developed. The probe detected Cu

over a linear range of 40-9 000 nmol/L with detection limit of 3.93 nmol/L. The recovery rate of standard addition ranged from 98% to 100.58% in tap water

and that was 97.43% to 101.47% in Liujiang water. The experimental results show that the probe has good selectivity and accuracy for Cu

which can provide a new idea for the fluorescence rapid detection of Cu

metal ions.

关键词

氧化锌量子点开关式荧光探针Cu2+

Keywords

ZnO quantum dotsswitchable fluorescence probeCu2+

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Cu²⁺对luminol-碱性水溶液声致荧光的影响

开关式氧化锌量子点荧光探针制备及其特异性检测Cu2+应用

Preparation of Switchable ZnO-NH2 QDs Fluorescent Probe and Its Application in Specific Detection of Cu2+

DOI：10.37188/CJL.20210408

摘要

Abstract

关键词

Keywords

references

开关式氧化锌量子点荧光探针制备及其特异性检测Cu²⁺应用

Preparation of Switchable ZnO-NH₂ QDs Fluorescent Probe and Its Application in Specific Detection of Cu²⁺