Optimization of electrospun poly(vinyl alcohol)/cellulose nanocrystals composite nanofibrous filter fabrication using response surface methodology

被引：12

作者：

Zhang, Qijun ^{[1
,2
,3
]}

Young, Timothy M. ^{[3
]}

Harper, David P. ^{[3
]}

Liles, Terry ^{[3
,4
]}

Wang, Siqun ^{[3
]}

机构：

[1] Chinese Acad Sci, CAS Key Lab Urban Pollutant Convers, Inst Urban Environm, 1799 Jimei Rd, Xiamen 361021, Peoples R China

[2] Chinese Acad Sci, CAS Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, 1799 Jimei Rd, Xiamen 361021, Peoples R China

[3] Univ Tennessee, Ctr Renewable Carbon, 2506 Jacob Dr, Knoxville, TN 37996 USA

[4] Huber Engn Woods, 1442 Highway 334, Commerce, GA 30530 USA

来源：

CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS | 2021年 / 2卷

基金：

美国食品与农业研究所;

关键词：

Cellulose nanocrystals; Air filtration; Optimization; Response surface methodology; Electrospinning; HIGH-EFFICIENCY; FILTRATION; PARTICLES; PARAMETERS; MORPHOLOGY; MORTALITY; DIAMETER; EXPOSURE; PM2.5;

D O I：

10.1016/j.carpta.2021.100120

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A Poly(vinyl alcohol) (PVA)/cellulose nanocrystals (CNCs) composite nanofibrous air filter was fabricated via electrospinning. CNCs were added to improve the overall filtration performance for particulate matter (PM) removal. The integral effect of different properties of electrospinning suspension on the PM2.5 removal efficiency and pressure drops were studied. To optimize the fabrication parameters, variables such as suspension concertation and CNCs percentage at different levels were systematically investigated using response surface methodology. The feasible operating space, where the suspension concentration and CNCs percentage were varied from 6 to 8% and 5 to 20%, respectively, was evaluated with reduced experimental runs using a facecentered central composite design. Our results indicate the quadratic models developed for predicting responses were adequate. The optimum filtration performance for PM2.5 was achieved with 7.34% of suspension concentration and 20% of CNCs percentage, where the removal efficiency was 94% and the pressure drop was only 34.9 Pa.

引用

页数：8

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