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文章编号: 1672-6987(2019)06-0019-08; DOI: 10.16351/j.1672-6987.2019.06.002
井翠洁, 李泽珊, 张玉冰*
(青岛科技大学 肿瘤标志物传感分析教育部重点实验室;化学与分子工程学院,山东 青岛 266042)
摘要: 合成了二硫化钼/磺化聚苯胺复合材料(SAT-MoS2)并通过红外光谱(FT-IR)、扫描电镜(SEM)、电化学测试进行了表征。一方面,SAT具有良好的导电性且可以增大MoS2的分散性和溶解性;另一方面,MoS2自身具有比表面积大、活性位点多的优点,从而使制备出的复合材料具有良好的电化学性能。在最优的实验条件下,通过差分脉冲伏安法(DPV)可以实现对硝基苯酚的灵敏性检测。检测范围01~50 μmol·L-1检测限低至16×10-8 mol·L-1,并且该复合材料修饰电极具有良好的稳定性。
关键词: 二硫化钼; 磺化聚苯胺; 差分脉冲伏安法; 电化学传感; 对硝基苯酚
中图分类号: O 657.1文献标志码: A
引用格式: 井翠洁, 李泽珊, 张玉冰. 基于新型二硫化钼/磺化聚苯胺复合材料的电化学传感器用于检测对硝基苯酚\[J\]. 青岛科技大学学报(自然科学版), 2019, 40(6): 19-26.
JING Cuijie, LI Zeshan, ZHANG Yubing. A novel MoS2/SAT composite based on electrochemical sensor for high performance 4-nitrophenol detection\[J\]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2019, 40(6): 19-26.
A Novel MoS2/SAT Composite Based on Electrochemical Sensor for
High Performance 4-Nitrophenol Detection
JING Cuijie, LI Zeshan, ZHANG Yubing
(Key Laboratory of Sensor Analysis of Tumor Marker of Education Ministry; College of Chemistry and
Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: A novel MoS2/SAT composite was synthesized and characterized by FT-IR, SEM and electrochemical tests. On one hand,Sulfonated aniline trimer(SAT) has good conductivity and can increase the dispersion and solubility of MoS2 . On the other hand, MoS2 has the advantages of large surface area and more active sites. Thus, the prepared composite material has excellent electrochemical properties.Under optimized experimental conditions, 4-NP was detected by differential pulse voltammetry (DPV) sensitively, The detection range was 01—50 μmol·L-1, and the limit of detection was determined to be 16×10-8 mol·L-1. The composite modified electrode had good stability.
Key words: molybdenum disulfide;sulfonated aniline trimer; differential pulse voltammetry; electrochemical sensor;4-nitrophenol
收稿日期: 2018-12-22
基金项目: 青岛市技术合作项目(青技审字(2016)第75788号).
作者简介: 井翠洁(1994—),女,硕士研究生.*通信联系人.