分子印迹聚合物
检出限
纳米复合材料
材料科学
电极
单体
分子印迹
化学工程
线性范围
锌
选择性
纳米技术
核化学
聚合物
化学
色谱法
有机化学
复合材料
催化作用
物理化学
工程类
冶金
作者
Quanwen Pan,Yunhui Peng,Ailing Yang,Da‐Peng Yang
出处
期刊:International Journal of Electrochemical Science
[ESG]
日期:2023-12-01
卷期号:18 (12): 100393-100393
标识
DOI:10.1016/j.ijoes.2023.100393
摘要
In this work, a molecularly imprinted polymer (MIP)-based photoelectrochemical (PEC) sensor for the detection of ciprofloxacin (CIP) was constructed. Carbon-modified ZnO (ZnO/C) nanocomposite with adjustable zinc content was prepared by a carbonaceous method, facilitating visible light absorption and electron transition. The structure, morphology, and surface chemistry of ZnO/C were well characterized. The MIP membrane was formed by electropolymerizing, with ZnO/C nanocomposite, o-phenylenediamine (C6H4(NH3)2,o-PD), and CIP as highly efficient photoactive materials, functional monomer, and template, respectively. The PEC properties of different photoactive electrodes were measured and analyzed. The MIP-based PEC sensor showed excellent sensitivity and selectivity towards CIP, displaying a broad linear range from 0.01 nM to 1000 nM, a low detection limit of 8.41 pM, and satisfied recovery rates within 96.8%103.2%. The sensor exhibited reliable reproducibility and stability, with a relative standard deviation (RSD) of 2.48% for the CIP in milk. The constructed MIP-based PEC sensor not only provides a powerful and reliable route for the detection of CIP, but also can be extended to detect other antibiotics in food and natural environment.
科研通智能强力驱动
Strongly Powered by AbleSci AI