Electrospun nanofiber filters for highly efficient PM2.5 capture

With the recent increase of concern on the health impact of air pollution, there has been growing interest in filtration technologies that can effectively remove fine inhalable particles (PM2.5) in the air with diameters that are generally 2.5 mu m or smaller. Among various technologies presented, nanofiber-based filters provide A simple, but effective route to rapidly capture these fine particulate matters. In this review, we briefly introduce the health hazards associated with PM2.5 and highlight the importance of air filtration technology with particular emphasis on nanofiber-based filters prepared via electrospinning. Then, we summarize various fiber materials and additives utilized in electrospun nanofibers to enhance the filtration efficacy. Furthermore, we highlight some of the recent advances in the materials design of electrospun nanofiber filters for PM2.5 removal and discuss the current issues and future perspectives.

随着人们对空气污染对健康的影响的关注日益增加，人们对过滤技术的兴趣日益浓厚，该技术可以有效去除直径通常为2.5微米或更小的空气中的可吸入细颗粒（PM2.5）。 在介绍的各种技术中，基于纳米纤维的过滤器提供了一种简单而有效的途径来快速捕获这些细颗粒物。 在本文中，我们简要介绍了与PM2.5相关的健康危害，并强调了空气过滤技术的重要性，特别强调了通过静电纺丝制备的基于纳米纤维的过滤器。 然后，我们总结了用于静电纺丝纳米纤维中以增强过滤效果的各种纤维材料和添加剂。 此外，我们重点介绍了用于去除PM2.5的静电纺纳米纤维过滤器的材料设计方面的最新进展，并讨论了当前的问题和未来的前景。

Published: 2019

Journal ：KOREAN JOURNAL OF CHEMICAL ENGINEERING

Impact Factor：2.81

Paper link: https://link.springer.com/article/10.1007/s11814-019-0370-3