色谱 ›› 2026, Vol. 44 ›› Issue (7): 812-820.DOI: 10.3724/SP.J.1123.2025.10018

• 教学研究 • 上一篇    下一篇

“我爱实验室”科研训练:一种阳离子型共价有机框架气凝胶用于有机染料去除

李芸萌#, 李泓毅#, 曹东晓, 唐安娜*(), 孔德明   

  1. 南开大学化学学院,分析科学研究中心,天津市生物传感与分子识别重点实验室,化学国家级实验教学示范中心,天津 300071
  • 收稿日期:2025-11-23 出版日期:2026-07-08 发布日期:2026-07-09
  • 通讯作者: *E-mail:tanganna@nankai.edu.cn.
  • 作者简介:#共同第一作者.
  • 基金资助:
    国家自然科学基金项目(22293034)

“I love the lab” research training: a cationic covalent organic framework aerogel for organic dye removal

LI Yunmeng#, LI Hongyi#, CAO Dongxiao, TANG Anna*(), KONG Deming   

  1. Research Center for Analytical Sciences,Tianjin Key Laboratory of Biosensing and Molecular Recognition,National Demonstration Center for Experimental Chemistry Education,College of Chemistry,Nankai University,Tianjin 300071,China
  • Received:2025-11-23 Online:2026-07-08 Published:2026-07-09
  • Supported by:
    National Natural Science Foundation of China(22293034)

摘要:

甲基橙(MO)是一种典型的水溶性偶氮类有机染料。在基础实验中常被用作酸碱指示剂,在工业生产中是一种常见的有机染料,对水体具有强污染性。如果不慎食用偶氮染料,偶氮键被体内偶氮还原酶裂解,生成的芳香胺毒性大且有致癌风险。离子型共价有机框架(ICOFs)是共价有机框架(COFs)材料的框架和孔道上带有电荷的新型材料。ICOFs在水溶液中展现出良好的吸附性能,其高比表面积和丰富的多孔通道有利于污染物快速扩散到内层结构中,能有效吸附污染物。将具有规则的垂直大孔的绿色物质茄子作为基质,通过原位生长法制备出一种对MO高效吸附的阳离子型共价有机框架茄子复合气凝胶(EP@PDA-TGDha COF),并将其应用于有机染料污水处理中。将该实验开发为本科生“我爱实验室”科研训练实验,有助于培养和提升学生在样品前处理材料合成、材料结构和性质表征及实际样品分析方面的实验技能和独立分析问题、解决问题的能力。学生通过线下接触优秀课题组,感受科研氛围,了解学术前沿,跨出学术道路关键的第一步。通过“我爱实验室”科研训练,学生的专业知识储备、实验技能及科研思维能力均得到大幅提高。同时将思政元素有机融入科研训练中,培养学生的环境保护意识。

关键词: 离子型共价有机框架, 甲基橙, 吸附去除, 教学实验

Abstract:

Methyl orange (MO) is a typical water-soluble azo organic dye. It is commonly used as an acid-base indicator in basic experiments and as a common organic dye in industrial production. It has strong polluting effects on water bodies. If azo dyes are accidentally ingested, the azo bond is cleaved by azoreductase, generating highly toxic aromatic amines that pose potential carcinogenic risks. Ionic covalent organic frameworks (ICOFs) are novel materials derived from covalent organic frameworks, featuring charged structures on their frameworks and pores. ICOFs exhibit excellent adsorption performance in aqueous solutions. Their high surface area and abundant porous channels facilitate rapid diffusion of pollutants into the inner structure, enabling effective pollutant adsorption. Eggplant is a sustainable biomass material with regular vertical macropores, which can be used as a substrate. This experiment employed an in-situ solvothermal method to prepare a highly efficient adsorbent monolithic material of eggplant composite aerogel (EP@PDA-TGDha COF). It is applied to organic dye wastewater treatment. Developing this experiment as an undergraduate teaching module of “I love the laboratory” helps cultivate and enhance students’ abilities in sample pretreatment, material synthesis, structural and property characterization, and practical sample analysis. Students enter the research group offline, experience the academic atmosphere, keep abreast of cutting-edge research, taking the crucial first step in their academic journey. Through the “I Love the Lab” research training program, students significantly enhance their professional knowledge, experimental skills, and research-oriented thinking abilities. It also fosters students’ environmental protection awareness and enables them to apply their knowledge and skills to environmental conservation.

Key words: ionic covalent organic frameworks, methyl orange, adsorption removal, teaching experiment

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