Electrospinning Polyacrylonitrile/Graphene Oxide/Polyimide nanofibrous membranes for High-efficiency PM2.5 filtration

被引:66
|
作者
Dai, Hengzhang [1 ,2 ]
Liu, Xuan [1 ]
Zhang, Chaoran [2 ,3 ]
Ma, Kuang [1 ,2 ]
Zhang, Yafei [2 ]
机构
[1] Shanghai Ocean Univ, Coll Engn, Shanghai 201306, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Minist Educ, Key Lab Thin Film & Microfabricat Technol, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
Polyacrylonitrile; Polyimide; Graphene oxide; Electrospinning; Air filtration; REDUCED GRAPHENE OXIDE; PARTICULATE AIR-POLLUTION; FILTERS; PERFORMANCE; REMOVAL; ASTHMA;
D O I
10.1016/j.seppur.2021.119243
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Particulate matter (PM) pollution can severely affect human health. Currently, the most dangerous air pollutant is PM2.5 which refers to particles with a diameter less than 2.5 mu m. In order to mitigate the detrimental effects of PM2.5, there is an urgent demand for an air filter with improved performance. In this study, graphene oxide (GO), polyacrylonitrile (PAN), and polyimide (PI) are combined to prepare PAN/GO/PI nanofibrous membranes for efficient air filtration via electrospinning. The as-prepared PAN/GO/PI-6 nanofibrous membranes demonstrate high filtration efficiency (99.5%), low pressure drop (92 Pa), remarkable thermal stability (300 degrees C), and excellent mechanical strength. Built upon the above merits, this kind of nanofibrous membrane can account for widespread utilization in both industrial applications and civil health warrants.
引用
收藏
页数:9
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