Air Filtration Membranes: Fabrication, Structures, Characteristics and Applications

Authors

  • Peng Zhao The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China and Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.
  • Chenxin Lyu The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China and Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.
  • Jun Xie The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China and Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.
  • Chengqian Zhang The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China and Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.
  • Jianzhong Fu The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China and Key Lab of 3D Printing Process and Equipment of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.

DOI:

https://doi.org/10.9734/bpi/ist/v2/15156D

Keywords:

Electrospinning, fabrication techniques, nanofibrous membrane, air filtration, particulate matter, environmental applications

Abstract

Air pollution caused by particulate matter and toxic gases is violating individual’s health and safety. Nanofibrous membrane, being a reliable filter medium for particulate matter, has been extensively studied and applied in the field of air purification. Among the different fabrication approaches of nanofibrous membrane, electrospinning is considered as the most favorable and effective due to its advantages of controllable process, high production efficiency, and low cost. Advanced electrospinning techniques, including needleless, multi-needle and solvent-free electrospinning, have been proved capable of fabricating nanofibrous membranes at a rather high production rate, which is the foundation of large-scale production and widespread applications. The electrospun membranes, made of different materials and unique structures, exhibit good PM2.5 filtration performance of high filtration efficiency and low pressure drop, with multi-functions such as thermal stability, antibacterial functions and biodegradability. These membranes are applied to environmental protections and healthcare products against PM2.5, including filtration masks and filters. This chapter presents a brief overview of electrospinning techniques, different structures of electrospun nanofibrous membranes, unique characteristics and functions of the fabricated membranes, and summarization of the outdoor and indoor applications in PM filtration.

Published

2022-01-21

How to Cite

Peng Zhao, Chenxin Lyu, Jun Xie, Chengqian Zhang, & Jianzhong Fu. (2022). Air Filtration Membranes: Fabrication, Structures, Characteristics and Applications. Innovations in Science and Technology Vol. 2, 1–29. https://doi.org/10.9734/bpi/ist/v2/15156D

Issue

Innovations in Science and Technology Vol. 2

Section

Chapters