化学
亚胺
共价有机骨架
共价键
硅胶
烷基苯
三嗪
色谱法
苯
有机化学
催化作用
作者
Haoyu Long,Yanhao Jiang,Yanjuan Liu,Yue‐Fei Zhang,Wei Chen,Sheng Tang
出处
期刊:Talanta
[Elsevier]
日期:2023-08-01
卷期号:260: 124589-124589
被引量:17
标识
DOI:10.1016/j.talanta.2023.124589
摘要
In this work, 2,4,6-tris(4-aminophenyl)-1,3,5-triazine (TAPT) and 1,3,5-tris(4-formylphenyl)benzene (TFPB) were used as monomers to construct a triazine-containing imine-linked covalent organic framework (COF), which was then bonded onto the surface of aldehydized silica (SiO2–CHO), and finally a [email protected] composite material (TAPT-TFPB [email protected]2) was successfully prepared. The chromatographic separation performance of SiO2–CHO, TAPT-TFPB [email protected]2 and TAPT-TFPB [email protected]2/SiO2–CHO (80/20, mass ratio) was evaluated and compared. It was found that separation efficiency was obviously enhanced by adding an appropriate amount of SiO2–CHO into TAPT-TFPB [email protected]2. The obtained TAPT-TFPB [email protected]2/SiO2–CHO showed more favorable separation ability than SiO2–CHO and TAPT-TFPB [email protected]2. Various aromatic compounds including alkylbenzenes, polycyclic aromatic hydrocarbons, environmental endocrine disruptors, foodborne stimulants and phenyl ketones were effectively separated on the TAPT-TFPB [email protected]2/SiO2–CHO column in reversed phase chromatography mode. The silica microspheres surface-modified with triazine-containing imine-linked COFs proved to be a new type of promising chromatographic packing materials.
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