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Zeolitic imidazolate framework decorated bacterial cellulose coating for enhancing particulate filtration and adsorption from liquid and vapour phases of woven fabric
File(s)
d5ma00048c.pdf (1.5 MB)
Published online version
Author(s)
Li, Joanne Hong Wing
Garcia, Armando
Kondor, Anett
Stone, Corinne
Smith, Martin
Type
Journal Article
Abstract
There is currently a timely need for protective textiles used against hazardous chemical warfare agents (CWAs) to move away from fluorinated polymers due to the increasing environmental and health concerns associated with perfluoroalkyl substances. This represents a technical challenge as fluorinated surfaces are important to impart hydrophobicity and oleophobicity to prevent liquid CWAs from reaching the skin level. In this work, we report an alternative approach to increase the adsorption capacity and barrier properties of textiles through metal–organic framework decorated nanocellulose. Bacterial cellulose (BC) was decorated with zeolitic imidazolate framework (ZIF-67) through the growing of ZIF-67 in the presence of BC. ZIF-BC possessed a higher surface area of ∼400 m2 g−1, higher n-hexane and ethanol vapour sorption, as well as higher Congo red liquid sorption capacities compared to neat BC. When used as an ultra-low grammage coating for an open porous woven textile substrate, ZIF-67 decorated BC was able to offer an enhanced barrier performance in terms of reduced air permeability and increased aerosol particulate filtration efficiency (up to 97% for PM1 at a coating grammage of 1 g m−2) without sacrificing moisture transmission rate compared to uncoated woven textile and woven textile decorated with ZIF-67 only. Our work opens up new possibilities in the fluorine-free coating of protective textiles.
Date Issued
2025-05-02
Date Acceptance
2025-04-30
Citation
Materials Advances, 2025
URI
URL
DOI
ISSN
2633-5409
Publisher
The Royal Society of Chemistry
Journal / Book Title
Materials Advances
Copyright Statement
© 2025 The Author(s). Published by the Royal Society of Chemistry Open Access Article This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
License URL
Identifier
10.1039/d5ma00048c
Publication Status
Published online
Date Publish Online
2025-05-02