Engineering of molecularly imprinted cavity within 3D covalent organic frameworks: An innovation for enhanced extraction and removal of microcystins

分子印迹聚合物 萃取(化学) 检出限 甲基丙烯酸 吸附 色谱法 化学 固相萃取 选择性 聚合 聚合物 有机化学 催化作用
作者
Yu-Hong Tang,Tiantian Ma,Xu-Qin Ran,Yukun Yang,Hai‐Long Qian,Xiu‐Ping Yan
出处
期刊:Journal of Hazardous Materials [Elsevier BV]
卷期号:472: 134469-134469 被引量:5
标识
DOI:10.1016/j.jhazmat.2024.134469
摘要

The scarcity of selective adsorbents for efficient extraction and removal of microcystins (MCs) from complex samples greatly limits the precise detection and effective control of MCs. Three-dimensional covalent organic frameworks (3D COFs), characterized by their large specific surface areas and highly ordered rigid structure, are promising candidates, but suffer from lack of specific recognition. Herein, we design to engineer molecularly imprinted cavities within 3D COFs via molecularly imprinted technology, creating a novel adsorbent with exceptional selectivity, kinetics and capacity for the efficient extraction and removal of MCs. As proof-of-concept, a new C=C bond-containing 3D COF, designated JNU-7, is designed and prepared for copolymerization with methacrylic acid, the pseudo template L-arginine and ethylene dimethacrylate to yield the JNU-7 based molecularly imprinted polymer (JNU-7-MIP). The JNU-7-MIP exhibits a great adsorption capacity (156 mg g-1) for L-arginine. Subsequently, the JNU-7-MIP based solid-phase extraction coupled with high performance liquid chromatography-mass spectrometry achieves low detection limit of 0.008 ng mL-1, wide linear range of 0.025-100 ng mL-1, high enrichment factor of 186, rapid extraction of 10 min, and good recoveries of 92.4%-106.5% for MC-LR. Moreover, the JNU-7-MIP can rapidly remove the MC-LR from 1 mg L-1 to levels (0.26-0.35 μg L-1) lower than the WHO recommended limit for drinking water (1 μg L-1). This work reveals the considerable potential of 3D COF based MIPs as promising adsorbents for the extraction and removal of contaminants in complex real samples. Global warming and man-made eutrophication have greatly raised the hazardous exposure levels of microcystins (MCs) in environment. The scarcity of selective adsorbents capable of efficiently extracting and removing MCs from complex samples severely limits the precise detection and effective control of MCs. Here, a new molecularly imprinted three-dimensional covalent organic framework was designed and prepared as novel adsorbent for the efficient extraction and remove of MCs in real environmental samples.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
ding应助整齐小松鼠采纳,获得30
刚刚
wanci应助好吃采纳,获得10
1秒前
Rondab应助稳重水卉采纳,获得10
1秒前
天天快乐应助fengliurencai采纳,获得10
2秒前
彭于彦祖应助mrx采纳,获得20
2秒前
3秒前
bkagyin应助科研通管家采纳,获得10
5秒前
隐形曼青应助科研通管家采纳,获得10
5秒前
彭于晏应助科研通管家采纳,获得10
5秒前
FashionBoy应助科研通管家采纳,获得10
5秒前
5秒前
科研通AI5应助科研通管家采纳,获得10
5秒前
汉堡包应助科研通管家采纳,获得10
5秒前
5秒前
5秒前
hnu301完成签到,获得积分10
6秒前
英姑应助冷酷鱼采纳,获得10
7秒前
7秒前
屿落完成签到,获得积分10
7秒前
昏睡的蟠桃应助zzz采纳,获得100
7秒前
量子星尘发布了新的文献求助10
9秒前
恋雅颖月应助幸福大白采纳,获得10
9秒前
wh完成签到,获得积分10
9秒前
余淮完成签到,获得积分10
10秒前
平淡的初翠完成签到,获得积分10
10秒前
快乐一江发布了新的文献求助10
11秒前
邱型程应助屿落采纳,获得20
12秒前
鹤鸣完成签到,获得积分10
15秒前
15秒前
15秒前
17秒前
天真的高山完成签到,获得积分10
18秒前
善良海云完成签到,获得积分10
20秒前
ANG发布了新的文献求助10
20秒前
从容梦旋完成签到,获得积分10
22秒前
23秒前
酷波er应助liuyunhao7207采纳,获得10
23秒前
人生如梦应助健忘跳跳糖采纳,获得10
24秒前
24秒前
sihanzhiyu发布了新的文献求助10
24秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989406
求助须知:如何正确求助?哪些是违规求助? 3531522
关于积分的说明 11254187
捐赠科研通 3270174
什么是DOI,文献DOI怎么找? 1804901
邀请新用户注册赠送积分活动 882105
科研通“疑难数据库(出版商)”最低求助积分说明 809174