文献类型：期刊文献

英文题名：A triarylamine-based fluorescent covalent organic framework for efficient detection and removal of Mercury(II) ion

作者：He, Yulong[1];Wang, Xiaomin[1];Wang, Kang[1];Wang, Limin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2020

卷号：173

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20193907464799);WOS:【SCI-EXPANDED(收录号:WOS:000503312700024)】；

基金：This research was financially supported by the National Natural Science Foundation of China (21272069, 20672035) and the Fundamental Research Funds for the Central Universities and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.

语种：英文

外文关键词：Suzuki polymerization; Fluorescent sensor; Hg2+ detection; Hg2+ removal

摘要：A novel covalent organic framework (COF) polymer has been designed and synthesized by Suzuki polymerization of two monomers based on triarylamine derivatives, and the polymer displays nanosphere morphology due to mini-emulsion reaction system. On the basis of the above polymer, we further fabricated a Schiff base covalent organic framework polymer fluorescent sensor for efficient detection and removal of mercury(II) ions. The material underwent a fluorescence and colour change upon the touching of mercury(II) ions. Thus, taking advantage of the material to detect the presence of mercury(II) ions is quite convenient. Furthermore, the material is capable of efficiently adsorbing mercury(II) ions from aqueous solution. The fluorescence sensing device was successfully fabricated by immobilizing the polymer probe on a macroporous sponge, which was more convenient to detect and remove mercury(II) ions relative to powdery polymer probe.