期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 13, 页码 11319-11327出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b00554
关键词
conjugated microporous polymer; electropolymerization; surface morphology; electrochemical reduction; metronidazole
资金
- National Natural Science Foundation of China [21475046, 21427809, 21645004]
- State Key Laboratory of Pulp and Paper Engineering [201623]
- Fundamental Research Funds for the Central Universities [2015ZP028, 2017MS094]
Herein, we reported the fabrication of conjugated microporous polymer (CMP) films based on three thiophene derivatives using a one-step templateless electro-polymerization in dichloromethane without any surfactants. The formation of hydrophilic or hydrophobic films with specific morphology is a comprehensive result of the polymerization sites in each monomer, the polymerization rate, and the gas bubble produced in situ during the polymerization process, which can be easily controlled by the experimental conditions, such as electropolymerization method, electrolyte, and trace water existed in the organic solvent. Moreover, the electrochemical reduction of metronidazole as a prototypical nitro-analyte at CMP-modified glassy carbon (GC) electrode shows remarkably increased current response compared to nonmodified GC electrode. The process is demonstrated to be typical adsorption-controlled, and the hydrophobic surface of the electrode coating film is more favorable to the absorption and thus reduction of metronidazole. This work provides a new perspective and a breakthrough point for the application of CMPs in the electrochemical sensors.
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