聊城大学学报（自然科学版）2024，Vol.37Issue(3)：22-33,12.DOI:10.19728/j.issn1672-6634.2023100011
改性氮化碳/铜基MOF纳米复合材料修饰电极对草甘膦的电化学检测研究
Functionalized Carbon Nitride/Copper-based MOF Nanocomposites Modified Electrode for Electrochemical Detection of Glyphosate
摘要
Abstract
The electrochemical sensor was constructed based on the nanocomposite,which was synthesized from copper-based MOF(Cu-BTC)and mesoporous carbon nitride(CN)containing carbonyl heterocyclic rings.The as-fabricated sensor was used for the detection of glyphosate with the differential pulse voltam-metry method.The detection mechanism of the sensor is the decrease in the response current caused by the complexation reaction between Cu2+and glyphosate.To confirm the morphology and structure of the nanocomposite,it was characterized by scanning electron microscopy,transmission electron microscopy,X-ray diffraction technology,X-ray photoelectron spectroscopy,and Fourier transform infrared spectros-copy.The results showed that the sensor had a highly sensitive response toward glyphosate in a linear range of 10-6～10-12 g/L with a detection limit of 0.157 6 pg/L,and it had good selectivity for glypho-sate.When the sensor was used for the detection of glyphosate in real water samples,the recoveries were in the range of 94％～107％,demonstrating its high accuracy and practicality.关键词
差分脉冲伏安法/Cu-BTC/介孔氮化碳/电化学检测/草甘膦Key words
differential pulse voltammetry/Cu-BTC/mesoporous carbon nitride/electrochemical detec-tion/glyphosate分类
资源环境引用本文复制引用
王琪,刘瑶,舒傲澜,熊婵如,陈星..改性氮化碳/铜基MOF纳米复合材料修饰电极对草甘膦的电化学检测研究[J].聊城大学学报（自然科学版）,2024,37(3):22-33,12.基金项目
国家自然科学基金项目(21777164) （21777164）
安徽省科技重大专项项目(202003a07020004)资助 （202003a07020004）
