Open AccessElectrospun Polyacrylonitrile Nanofibrous Membranes for Point‐of‐Use Water and Air Cleaning
Author(s) -
Roche Remi,
Yalcinkaya Fatma
Publication year - 2019
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.201800267
Subject(s) - polyacrylonitrile , membrane , filtration (mathematics) , air permeability specific surface , materials science , contact angle , chemical engineering , permeability (electromagnetism) , electrospinning , composite material , polymer chemistry , chemistry , polymer , biochemistry , statistics , mathematics , layer (electronics) , engineering
Abstract Novel electrospun polyacrylonitrile (PAN) nanofibrous membranes were prepared by using heat‐press lamination under various conditions. The air permeability and the burst‐pressure tests were run to select the membranes for point‐of‐use air and water cleaning. Membrane characterization was performed by using scanning electron microscopy, contact angle, and average pore size measurements. Selected membranes were used for both air dust filtration and cross‐flow water filtration tests. Air dust filter results indicated that electrospun PAN nanofibrous membranes showed very high air‐dust filtration efficiency of more than 99.99 % in between PM 0.3 and PM 2.5 , whereas cross‐flow filtration test showed very high water permeability over 600 L/(m 2 hbar) after 6 h of operation. Combining their excellent efficiency and water permeability, these membranes offer an ideal solution to filter both air and water pollutants.