Adsorption of Estradiol on Stir Bars Coated with Imine Covalent Organic Framework Materials
FU Yingying
GAN Yu
DUAN Zhengchao
WANG Lianzhi
Abstract：In order to study the microstructure and surface properties of imine covalent organic framework(COF)and its adsorption properties on estradiol,TAPB-BTC-COF was synthesized using 1,3,5-tris(4-aminophenyl)benzene(TAPB)and 1,3,5-benzotrialdehyde(BTC)as monomers under room temperature conditions,and optimized synthesis of TAPB-BTC-COF.The imine covalent organic framework material TAPB-BTC-COF was synthesized at room temperature to optimize the amount of catalyst glacial acetic acid in the synthesis.The synthesized TABP-BTC-COF materials were analyzed by Fourier transform infrared spectroscopy(FT-1R),X-ray powder diffraction(XRD),scanning electron microscope(SEM),thermogravimetric analysis(TGA),and N2 adsorption-desorption isotherm.They were used to characterize the synthesized TABP-BTC-COF materials,and the TABP-BTC-COF coated stirring rods were prepared by physical coating method.The results showed that the amount of catalyst affects the crystalline shape of the imine COF;the adsorption kinetics process of the TAPB-BTC-COF-coated stirring rods conformed to the quasi-secondary adsorption kinetics(R2=0.9714),which was chemisorption.The study provides some theoretical basis for the application of TAPB-BTC-COF coated stir bar in the detection of estradiol in the environment.
Keywords：stir bar sorptive extraction techniquecovalent organic frameworkroom temperature synthesisestradioladsorption kineticshigh performance liquid chromatography
Publication Date：2024-12-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 544-550 )