Open AccessConstruction of dibutyl phthalate molecularly imprinted electrochemical sensor based on multi-walled carbon nanotubes-modified boron-doped diamond electrode
Author(s) -
Xiaoqiong Wu,
Fan Jia,
Zhixian Fu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2079/1/012012
Subject(s) - materials science , differential pulse voltammetry , cyclic voltammetry , electrochemical gas sensor , diamond , dibutyl phthalate , electrode , carbon nanotube , detection limit , scanning electron microscope , chemical engineering , electrochemistry , analytical chemistry (journal) , nuclear chemistry , nanotechnology , composite material , chemistry , organic chemistry , chromatography , engineering
In order to construct a dibutyl phthalate (DBP) molecularly imprinted electrochemical sensor, the DBP was used as the template molecule, due to the characteristics of multi-walled carbon nanotubes (MWCNTs) loaded with nano-gold to enhance the electrical conductivity of the composite material, a molecularly imprinted film was prepared on the surface of boron-doped diamond electrode (BDD) by potential deposition. The morphology of the composite material MIP/AuNPs/MWCNTs/BDD was analyzed and characterized by scanning electron microscopy (SEM), and the performance of the electrochemical sensor was characterized by cyclic voltammetry (CV), and differential pulse voltammetry (DPV) was used to detect DBP. The electrochemical sensor had a linear range of 1×10 -8 ~ 1×10 -5 mol/L and a detection limit of 3.3×10 -9 mol/L. The sensor was applied to the detection of DBP in water samples.