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通过阴离子剥离制备具有可移动阴离子的阳离子金属有机框架用于去除水中的2,4-二氯苯氧乙酸

Preparation of Cationic MOFs with Mobile Anions by Anion Stripping to Remove 2,4-D from Water.

作者信息

Chen Tao, Zhang Cong, Qin Yuemei, Yang Haiguan, Zhang Peng, Ye Fanggui

机构信息

State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Science of Guangxi Normal University, Guilin 541004, China.

出版信息

Materials (Basel). 2017 Jul 30;10(8):879. doi: 10.3390/ma10080879.

DOI:10.3390/ma10080879
PMID:28773239
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5578245/
Abstract

A cationic porous framework with mobile anions (MIL-101(Cr)-Cl) was easily and successfully synthesized by utilizing the stronger affinity of F to Al than Cr in the charge-balanced framework of MIL-101(Cr). The structure, morphology and porosity of MIL-101(Cr)-Cl were characterized. The obtained new materials retain the high surface area, good thermostability, and structure topology of MIL-101(Cr). With the mobile Cl anion, MIL-101(Cr)-Cl can be used as an ion-exchange material for anionic organic pollutions. In this work, 2,4-dichlorophenoxyacetic acid (2,4-D) was used as a model to test the absorption performance of this new material. This new material exhibited improved adsorbability compared to that of the original metal-organic frameworks (MOFs). At the same time, this material also shows high anti-interference performance with changing solution pH.

摘要

通过利用氟在MIL-101（铬）的电荷平衡框架中对铝的亲和力强于对铬的亲和力，一种带有可移动阴离子的阳离子多孔框架（MIL-101（铬）-氯）被轻松且成功地合成出来。对MIL-101（铬）-氯的结构、形态和孔隙率进行了表征。所获得的新材料保留了MIL-101（铬）的高比表面积、良好的热稳定性和结构拓扑。由于存在可移动的氯阴离子，MIL-101（铬）-氯可作为用于阴离子有机污染物的离子交换材料。在这项工作中，使用2,4 -二氯苯氧乙酸（2,4-D）作为模型来测试这种新材料的吸附性能。与原始金属有机框架（MOF）相比，这种新材料表现出更高的吸附性。同时，该材料在溶液pH值变化时也显示出高抗干扰性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/8a9644897ee2/materials-10-00879-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/40c220ef5a32/materials-10-00879-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/7dd311e0760b/materials-10-00879-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/c723d2a4689b/materials-10-00879-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/c9d5b2cc986e/materials-10-00879-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/f0050e949c02/materials-10-00879-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/3c3ca61a7e9e/materials-10-00879-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/c682d82bbf29/materials-10-00879-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/8b3cd2fe73ab/materials-10-00879-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/dfd0a4212cc4/materials-10-00879-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/8a9644897ee2/materials-10-00879-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/40c220ef5a32/materials-10-00879-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/7dd311e0760b/materials-10-00879-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/c723d2a4689b/materials-10-00879-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/c9d5b2cc986e/materials-10-00879-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/f0050e949c02/materials-10-00879-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/3c3ca61a7e9e/materials-10-00879-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/c682d82bbf29/materials-10-00879-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/8b3cd2fe73ab/materials-10-00879-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/dfd0a4212cc4/materials-10-00879-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4eb0/5578245/8a9644897ee2/materials-10-00879-sch001.jpg

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