Adsorption behavior and mechanism of sulfonamides on controllably synthesized covalent organic frameworks

被引：0
|
作者：
Wenjing Sun
Xiaoyu Hu
Yuhong Xiang
Nengsheng Ye
机构：
[1] Capital Normal University,Department of Chemistry
来源：
Environmental Science and Pollution Research | 2022年 / 29卷
关键词：
Adsorption mechanism; Covalent organic frameworks; Controlled synthesis; Kinetic experiment; Thermodynamic experiment; Sulfonamides;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this work, four kinds of covalent organic framework (COF) materials (TpPa-1, TpBD, TpDT, and TFBBD) with different pore sizes or functional groups were synthesized by an ultrasonic method for the adsorption of five sulfonamides. Optimization experiments regarding the adsorption time, vortex speed, and pH were carried out to improve adsorption efficiency. In addition, kinetic and thermodynamic experiments were conducted to explore the adsorption mechanism of the sulfonamides on the different COFs. The adsorption processes of the five sulfonamides on the four COFs fit the pseudo-second-order kinetic model and Langmuir adsorption isotherm model. Additionally, pore filling, hydrogen bond interactions, and electrostatic attraction were found to be the main adsorption mechanisms.
引用
收藏
页码：18680 / 18688
页数：8
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