期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 417, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.126033
关键词
Air filtration; High-performance; Nanofibrous membrane; Electrospinning technology; Oxidized poly (arylene sulfide sulfone)
资金
- National Natural Science Foundation of China [51573103, 21274094]
- Sichuan University [2019SCU12007]
- 2019 foundation research fostering project21
A novel O-PASS nanofibrous membrane filter was successfully developed in this study for efficient particulate matter removal, showing high removal efficiency, low pressure drop, and high quality factor. The oxidation treatment significantly improved the mechanical properties of the membrane while maintaining high removal efficiency even after various treatments.
In this study, a novel, oxidized poly (arylene sulfide sulfone) (O-PASS) nanofibrous membrane filter was successfully fabricated for the effective removal of particulate matter. PASS was electrospun into a nanofibrous membrane with an average nanofiber diameter of 0.31 & micro;m and basis weight of 3 g/m2. These specifications were chosen as they showed high particulate matter removal efficiency (99.98%), low pressure drop (68 Pa), and high quality factor QF (0.125 Pa-1). In addition, the filtration mechanism of the PASS nanofibrous membrane was intuitively revealed by simulating the intercepted particular distributions and motion paths of particles. After a simple oxidation treatment, the O-PASS nanofibrous membrane was successfully built up. The microstructure and morphology showed little change compared with the PASS nanofiber, but the oxidation treatment significantly improved the mechanical properties of the membrane from 1.51 MPa to 4.92 MPa. More importantly, the O-PASS nanofibrous membrane still exhibited high removal efficiency after high temperature, acid, alkali, or organic solvent treatments. Overall, O-PASS nanofibrous membranes are promising high-performance filter materials with high temperature and corrosion resistance.
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