基于电沉积技术制备ZnS量子点/海藻酸盐复合膜及其检测应用

许泽泉; 陈炜; 唐靖; 陈宗明; 陶江涛; 李彦志; 王艺峰

doi:10.11777/j.issn1000-3304.2023.23201

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基于电沉积技术制备ZnS量子点/海藻酸盐复合膜及其检测应用

研究论文 | 更新时间：2024-01-19

- 基于电沉积技术制备ZnS量子点/海藻酸盐复合膜及其检测应用
- Preparation of ZnS Quantum Dots/Alginate Composite Films Based on Electrodeposition and Their Applications on Detection
- 高分子学报 2024年55卷第2期页码：202-211
- 作者机构：
  
  武汉理工大学材料科学与工程学院武汉 430070
- 作者简介：
  
  E-mail: yifengwang@whut.edu.cn
- 基金信息：
  
  国家自然科学基金(基金号 51873167);武汉理工大学自主创新研究基金(基金号 236601002)
- DOI：10.11777/j.issn1000-3304.2023.23201
  中图分类号：
- 纸质出版日期：2024-02-20，
  
  网络出版日期：2023-10-27，
  
  收稿日期：2023-07-28，
  
  录用日期：2023-09-07
- 稿件说明：
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许泽泉, 陈炜, 唐靖, 陈宗明, 陶江涛, 李彦志, 王艺峰. 基于电沉积技术制备ZnS量子点/海藻酸盐复合膜及其检测应用. 高分子学报, 2024, 55(2), 202-211

Xu, Z. Q.; Chen, W.; Tang, J.; Chen, Z. M.; Tao, J. T.; Li, Y. Z.; Wang, Y. F. Preparation of ZnS quantum dots/alginate composite films based on electrodeposition and their applications on detection. Acta Polymerica Sinica, 2024, 55(2), 202-211
许泽泉, 陈炜, 唐靖, 陈宗明, 陶江涛, 李彦志, 王艺峰. 基于电沉积技术制备ZnS量子点/海藻酸盐复合膜及其检测应用. 高分子学报, 2024, 55(2), 202-211 DOI： 10.11777/j.issn1000-3304.2023.23201.

Xu, Z. Q.; Chen, W.; Tang, J.; Chen, Z. M.; Tao, J. T.; Li, Y. Z.; Wang, Y. F. Preparation of ZnS quantum dots/alginate composite films based on electrodeposition and their applications on detection. Acta Polymerica Sinica, 2024, 55(2), 202-211 DOI： 10.11777/j.issn1000-3304.2023.23201.

摘要

基于电沉积技术发展了一种原位制备ZnS量子点及其海藻酸盐复合膜的方法，此方法具备可控性好、步骤简单、条件温和、绿色环保等优点. 实验结果表明，电沉积后可以在电极上形成ZnS量子点/海藻酸锌复合膜，该复合膜表面光滑无气泡，在302 nm紫外光下呈现清晰的蓝色荧光. 透射电镜测试和光谱分析结果表明复合膜中存在ZnS量子点，其平均粒径为3.0 nm. 利用电沉积技术的可控性和空间选择性以及ZnS量子点的荧光性能，可以制备出具备不同形状和荧光图案的复合膜. 此外，利用电沉积技术制备的ZnS量子点/海藻酸锌复合膜同时具备荧光检测和电化学检测的能力，在双模式检测以及构建双模式检测器方面具备应用前景.

Abstract

On the basis of electrodeposition

a new method has been developed to

in situ

synthesize zinc sulfide (ZnS) quantum dots (QDs) and directly prepare ZnS QDs/alginate composite films on electrodes. The method shows a range of benefits

such as the good controllability

the mild conditions

and the convenient and eco-friendly process. After the electrodeposition

a smooth and homogeneous ZnS QDs/zinc alginate composite film has been generated on the surface of electrode

which exhibits clear blue fluorescence under excitation of 302 nm UV light. Transmission electron microscopy observation reveals that there are relatively uniform sized nanoparticles in the ZnS QDs/zinc alginate composite film

and their average particle size is 3.0 nm. The UV-Vis absorption spectrum of the ZnS QDs/zinc alginate composite film exhibits absorption peak at 280 nm

which is attributed to the typical absorption peak of ZnS QDs. The photoluminescence spectrum of the ZnS QDs/zinc alginate composite film shows a clear emission peak at 420 nm

which agrees with the emission peak of ZnS QDs. The ZnS QDs/zinc alginate composite films having specific shapes and fluorescence patterns can be directly fabricated by utilizing the spatial selectivity of the electrodeposition and the fluorescence property of ZnS QDs. Noteworthily

the ZnS QDs/zinc alginate composite film shows the ability for both fluorescence detection and electrochemical detection. Therefore

it can be expected that the ZnS QDs/alginate composite film prepared by electrodeposition is promising for applications in the dual-mode detection and novel dual-mode detectors and sensors.

关键词

电沉积ZnS量子点海藻酸盐电化学检测荧光检测

Keywords

ElectrodepositionZnS quantum dotsAlginateElectrochemical detectionFluorescence detection

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