Polyacrylonitrile/polyimide composite sub-micro fibrous membranes for precise filtration of PM0.26 pollutants
Polyacrylonitrile/polyimide composite sub-micro fibrous membranes for precise filtration of PM0.26 pollutants
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聚丙烯腈/聚酰亚胺复合亚微纤维膜精准过滤PM0.26污染物
DOI：
10.1016/j.jcis.2020.05.081
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发表时间：
2020-10-15
影响因子：
9.9
通讯作者：
Yu, Jianyong
中科院分区：
文献类型：
--
作者：
Zhou, Mengjuan;Hu, Min;Yu, Jianyong
颗粒物（PM）污染已对生态系统和公众健康造成了极大的威胁.在众多的空气过滤介质中，纤维状过滤介质具有比表面积大、内部连通性好等优点，是一种极具吸引力和发展前景的空气过滤介质。即便如此，纤维过滤材料的大规模制造仍然具有挑战性。以废聚酰亚胺短纤维为原料，采用自由表面静电纺丝法制备了三维聚丙烯腈/聚酰亚胺（PAN/PI）复合亚微米纤维膜，用于对PM 0. 26污染物的精密过滤。所得复合纤维膜具有细纤维直径（类似于150 nm）、低面密度（
Particulate matter (PM) pollution has enormously threatened ecosystem and public health. Among various air filtration medium, fibrous ones are very attracting and promising, with an array of advantages such as high specific surface area, and good internal connectivity. Even so, the large-scale fabrication of fibrous filtration materials still remains challenging. Here, three-dimensional polyacrylonitrile/polyimide (PAN/PI) composite sub-micro fibrous membranes were fabricated facilely via free surface electrospinning for precise filtration of PM0.26 pollutants, where the waste PI short fibers were utilized as raw material. The resultant composite fibrous membranes, featuring thin fiber diameter (similar to 150 nm), low areal density (