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Patterned nanofiber air filters with high optical transparency, robust mechanical strength, and effective PM_(2.5) capture capability

Cao, Jinshan and Cheng, Zhiqiang and Kang, Lijuan and Lin, Meng and Han, Lihao (2020) Patterned nanofiber air filters with high optical transparency, robust mechanical strength, and effective PM_(2.5) capture capability. RSC Advances, 10 (34). pp. 20155-20161. ISSN 2046-2069. https://resolver.caltech.edu/CaltechAUTHORS:20200710-105128397

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Abstract

PM_(2.5), due to its small particle size, strong activity, ease of the attachment of toxic substances and long residence time in the atmosphere, has a great impact on human health and daily production. In this work, we have presented patterned nanofiber air filters with high optical transparency, robust mechanical strength and effective PM_(2.5) capture capability. Here, to fabricate a transparency air filter by a facile electrospinning method, we chose three kinds of patterned wire meshes with micro-structures as negative receiver substrates and directly electrospun polymer fibers onto the supporting meshes. Compared with randomly oriented nanofibers (named “RO NFs” in this paper) and commercially available facemasks, the patterned air filters showed great mechanical properties, and the water contact angles on their surfaces were about 122–143° (the water contact angle for RO NFs was 81°). In addition, the patterned nanofibers exhibited high porosity (>80%), and their mean pore size was about 0.5838–0.8686 μm (the mean pore size of RO NFs was 0.4374 μm). The results indicate that the transparent patterned air filters have the best PM_(2.5) filtration efficiency of 99.99% at a high transmittance of ∼69% under simulated haze pollution.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1039/d0ra01967dDOIArticle
http://www.rsc.org/suppdata/d0/ra/d0ra01967d/d0ra01967d1.pdfPublisherSupplementary Information
ORCID:
AuthorORCID
Cheng, Zhiqiang0000-0003-2824-9126
Lin, Meng0000-0001-7785-749X
Additional Information:© 2020 The Royal Society of Chemistry. Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) Submitted 01 Mar 2020; Accepted 07 May 2020; First published 27 May 2020. This work is supported by Jilin Province Innovation Capacity Building Fund Project (2019C050-9), Jilin Provincial Department of Science and Technology Natural Science Foundation (20180101212JC) and Changchun Science and Technology Project (18DY023). There are no conflicts to declare.
Group:JCAP
Funders:
Funding AgencyGrant Number
Jilin Province Innovation Capacity Building Fund2019C050-9
Jilin Provincial Department of Science and Technology Natural Science Foundation20180101212JC
Changchun Science and Technology18DY023
Issue or Number:34
Record Number:CaltechAUTHORS:20200710-105128397
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200710-105128397
Official Citation:Patterned nanofiber air filters with high optical transparency, robust mechanical strength, and effective PM2.5 capture capability. RSC Adv., 2020, 10, 20155-20161; doi: 10.1039/d0ra01967d
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104325
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Jul 2020 18:11
Last Modified:10 Jul 2020 18:11

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