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In Situ Investigation on the Nanoscale Capture and Evolution of Aerosols on Nanofibers.
Zhang, Rufan; Liu, Bofei; Yang, Ankun; Zhu, Yangying; Liu, Chong; Zhou, Guangmin; Sun, Jie; Hsu, Po-Chun; Zhao, Wenting; Lin, Dingchang; Liu, Yayuan; Pei, Allen; Xie, Jin; Chen, Wei; Xu, Jinwei; Jin, Yang; Wu, Tong; Huang, Xuanyi; Cui, Yi.
Affiliation
  • Zhang R; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Liu B; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Yang A; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Zhu Y; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Liu C; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Zhou G; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Sun J; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Hsu PC; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Zhao W; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Lin D; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Liu Y; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Pei A; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Xie J; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Chen W; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Xu J; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Jin Y; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Wu T; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Huang X; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
  • Cui Y; Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
Nano Lett ; 18(2): 1130-1138, 2018 02 14.
Article in En | MEDLINE | ID: mdl-29297691
Aerosol-induced haze problem has become a serious environmental concern. Filtration is widely applied to remove aerosols from gas streams. Despite classical filtration theories, the nanoscale capture and evolution of aerosols is not yet clearly understood. Here we report an in situ investigation on the nanoscale capture and evolution of aerosols on polyimide nanofibers. We discovered different capture and evolution behaviors among three types of aerosols: wetting liquid droplets, nonwetting liquid droplets, and solid particles. The wetting droplets had small contact angles and could move, coalesce, and form axisymmetric conformations on polyimide nanofibers. In contrast, the nonwetting droplets had a large contact angle on polyimide nanofibers and formed nonaxisymmetric conformations. Different from the liquid droplets, the solid particles could not move along the nanofibers and formed dendritic structures. This study provides an important insight for obtaining a deep understanding of the nanoscale capture and evolution of aerosols and benefits future design and development of advanced filters.
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Full text: 1 Database: MEDLINE Language: En Journal: Nano Lett Year: 2018 Type: Article Affiliation country: United States
Fulltext
Add to My VHL
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Full text: 1 Database: MEDLINE Language: En Journal: Nano Lett Year: 2018 Type: Article Affiliation country: United States