Fabrication of CQDs/MoS2/Mo foil for the improved electrochemical detection

被引：12
|
作者：
Shang, Jinghua [1 ]
Zhao, Minggang [1 ]
Qu, Huiyan [1 ]
Li, Hui [2 ]
Chen, Shougang [1 ]
机构：
[1] Ocean Univ China, Dept Mat Sci & Engn, Qingdao 266100, Shandong, Peoples R China
[2] Qingdao Univ Sci & Technol, Phys Dept, Optoelect Mat & Technol Engn Lab Shandong, Qingdao 266100, Shandong, Peoples R China
来源：
ANALYTICA CHIMICA ACTA | 2019年 / 1079卷
基金：
中国国家自然科学基金;
关键词：
Heterojunction; Electrochemical; Nanomaterials; Dopamine; Biosensing; PHOTOCATALYTIC HYDROGEN EVOLUTION; GRAPHENE OXIDE; ASCORBIC-ACID; CARBON NANOFIBERS; URIC-ACID; DOPAMINE; COMPOSITE; ELECTRODE; DOTS; HETEROSTRUCTURE;
D O I：
10.1016/j.aca.2019.06.025
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We proposed a new method for regulating the electrochemical signal by using Schottky barrier. The results show that the height of Schottky barrier can be altered by adsorbing charged substance to control the enhancement and attenuation of electrochemical signal. The Schottky interface formed by MoS2 and CQDs (carbon quantum dots) can achieve the selective detection of dopamine and overcome the distraction of ascorbic acid and uric acid with similar redox signal. The combination of Schottky barrier and electrochemical detection enhance the sensitivity and selectivity of electrochemical sensor significantly. It is a new strategy for improving electrochemical detection by introducing Schottky barrier into electrochemical process. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：79 / 85
页数：7
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