A Poly(ethylenglycol) Functionalized ZIF-8 Membrane Prepared by Coordination-Based Post-Synthetic Strategy for the Enhanced Adsorption of Phenolic Endocrine Disruptors from Water

Metal–organic framework (MOF) membranes have received increasing attention as adsorbents, yet single phase MOF membranes have certain limitations, which frustrate their capacity performance. In this work a MOF composite membrane was successfully prepared by a facile and green strategy through reason...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2017-08, Vol.7 (1), p.8912-11, Article 8912
Main Authors: Wu, Mian, Guo, Xiafei, Zhao, Faqiong, Zeng, Baizhao
Format: Article
Language:English
Subjects:
639/301/357/404
639/638/11
639/638/298/921
Adsorption
EGR-1 protein
Endocrine disruptors
Environmental monitoring
Humanities and Social Sciences
Membranes
multidisciplinary
Nonylphenol
Phenolic compounds
Phenols
Polyethylene glycol
Science
Science (multidisciplinary)
Water analysis
Water sampling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Metal–organic framework (MOF) membranes have received increasing attention as adsorbents, yet single phase MOF membranes have certain limitations, which frustrate their capacity performance. In this work a MOF composite membrane was successfully prepared by a facile and green strategy through reasonable design. At first, a defect-free ZIF-8 membrane was fabricated on an ionic liquid modified pencil bar by a solvothermal method. Then, a novel poly(ethylenglycol) functionalized ZIF-8 composite membrane (ZIF-8/PEG-NH 2 ) was prepared through a flexible coordination-based post-synthetic modification strategy. We found that reaction time and temperature were two crucial factors for successfully fabricating well-defined ZIF-8/PEG-NH 2 membrane. Besides, the adsorption of phenolic endocrine disruptors (e.g., 4-nonylphenol) on original ZIF-8 membrane and ZIF-8/PEG-NH 2 membrane was investigated, and the good adsorption selectivity of ZIF-8/PEG-NH 2 membrane towards 4-nonylphenol was demonstrated, with high adsorption capacity and fast adsorption dynamics. Excitingly, such ZIF-8/PEG-NH 2 membrane was successfully employed for the selective detection of 4-nonylphenol from environmental water samples, demonstrating its great application potential in environmental monitoring.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-09364-1