SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (7): 1788-1795.doi: 10.1016/j.cjche.2020.02.025

• Separation Science and Engineering • Previous Articles     Next Articles

Enhanced air filtration performance under high-humidity condition through electrospun membranes with optimized structure

Xue Gao1, Sisi Wen1, Bingling Yang1, Jian Xue1,2, Haihui Wang1   

  1. 1 School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
    2 State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
  • Received:2020-01-03 Revised:2020-02-18 Online:2020-07-28 Published:2020-08-31
  • Contact: Jian Xue E-mail:xuejian@scut.edu.cn
  • Supported by:
    We gratefully acknowledge the funding from by the National Natural Science Foundation of China(21706076, 21536005, 51621001), and the National Natural Science Foundation of the Guangdong Province(2014A030312007), Guangzhou Technology Project(201804010210), and the State Key Laboratory of Pulp and Paper Engineering(201835).

Abstract: The separation stability under high-humidity is significant in practical applications for air filters. Herein, hydrophobic polyvinyl chloride (PVC) nanofiber filters with bead-on-string structure are designed to steadily remove particle matter under high relative humidity of 90%-95%. The developed hydrophobic filters possess comparable separation performance with the hydrophilic one, but greatly enhanced stability. After the introduction of beadon-string structure, the filtration performance can be furtherly improved due to the formed large cavities and hydrophobicity. Such hydrophobic PVC filters can be promising candidates for air purification in practical applications especially in wet seasons.

Key words: Bead-on-string structure, Electrospun membranes, High humidity, Air purification