Nanoparticle filtration by electrospun polymer fibers

被引:259
作者
Yun, Ki Myoung
Hogan, Christopher J., Jr.
Mastubayashi, Yasuko
Kawabe, Masaaki
Iskandar, Ferry
Okuyama, Kikuo
机构
[1] Hiroshima Univ, Grad Sch Engn, Dept Chem Engn, Higashi Ku, Hiroshima 7398527, Japan
[2] Washington Univ, Dept Energy Environm & Chem Engn, St Louis, MO 63130 USA
[3] Japan Vilene Co Ltd, Cent Res Lab, Ibaraki 3060213, Japan
基金
日本学术振兴会; 美国国家科学基金会;
关键词
filtration; aerosol; electrospinning; polymer processing; nanoparticles; nanotibers;
D O I
10.1016/j.ces.2007.06.007
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Polyacrylonitrile (PAN) fibers with mean diameters in 270-400 nm range were prepared by electrospinning for use as a filter media. Compared to commercial filters made of polyolefin and glass, the fibers of electrospun filters were more uniform in diameter. The performance of electrospun filters was evaluated by measuring the penetration of monodisperse NaCl nanoparticles (below 80 nm in size) through the filters. It was found that electrospun filters could be made which had nanoparticle penetration values comparable to commercial filters but with substantially less filter mass. The penetration of nanoparticles through the electrospun filter media could be reduced by increasing the filter thickness, which is controlled by the collection time during the electrospinning process. Nanoparticle collection by electrostatic forces was found to be negligible for electrospun filters. Filter quality factors and single fiber collection efficiencies were found to be independent of filter thickness for electrospun filters, and the penetration of nanoparticles through electrospun filters was in better agreement with theoretical predictions than was the measured penetration through a commercial filter. This study shows that electrospinning is a promising technology for the production of high performance nanoparticle filters. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4751 / 4759
页数:9
相关论文
共 33 条
[1]   Preparation and characterization of nanofibrous filtering media [J].
Barhate, R. S. ;
Loong, Chong Kian ;
Ramakrishna, Seeram .
JOURNAL OF MEMBRANE SCIENCE, 2006, 283 (1-2) :209-218
[2]   2005 Critical Review: Nanoparticles and the environment [J].
Biswas, P ;
Wu, CY .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 2005, 55 (06) :708-746
[3]   ELECTROSPRAYING OF CONDUCTING LIQUIDS FOR MONODISPERSE AEROSOL GENERATION IN THE 4 NM TO 1.8 MU-M DIAMETER RANGE [J].
CHEN, DR ;
PUI, DYH ;
KAUFMAN, SL .
JOURNAL OF AEROSOL SCIENCE, 1995, 26 (06) :963-977
[4]   Controlled deposition of electrospun poly(ethylene oxide) fibers [J].
Deitzel, JM ;
Kleinmeyer, JD ;
Hirvonen, JK ;
Tan, NCB .
POLYMER, 2001, 42 (19) :8163-8170
[5]   Charge and size distributions of electrospray drops [J].
deJuan, L ;
delaMora, JF .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1997, 186 (02) :280-293
[6]   Theoretical modeling of filtration by nonuniform fibrous filters [J].
Dhaniyala, S ;
Liu, BYH .
AEROSOL SCIENCE AND TECHNOLOGY, 2001, 34 (02) :170-178
[7]   THE DIFFUSION COLLECTION EFFICIENCY OF FIBERS FOR AEROSOL OVER A WIDE-RANGE OF REYNOLDS-NUMBERS [J].
EMI, H ;
KANAOKA, C ;
KUWABARA, Y .
JOURNAL OF AEROSOL SCIENCE, 1982, 13 (05) :403-413
[8]  
EMI H, 1984, OHYOEAROZORUGAKU YOK, pCH3
[9]   Beaded nanofibers formed during electrospinning [J].
Fong, H ;
Chun, I ;
Reneker, DH .
POLYMER, 1999, 40 (16) :4585-4592
[10]   Transport properties of porous membranes based on electrospun nanofibers [J].
Gibson, P ;
Schreuder-Gibson, H ;
Rivin, D .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2001, 187 :469-481