In Situ Investigation on the Nanoscale Capture and Evolution of Aerosols on Nanofibers | Zendy

Rufan Zhang | Zendy; Bofei Liu | Zendy; Ankun Yang | Zendy; Yangying Zhu | Zendy; Chong Liu | Zendy; Guangmin Zhou | Zendy; Jie Sun | Zendy; PoChun Hsu | Zendy; Wenting Zhao | Zendy; Dingchang Lin | Zendy; Yayuan Liu | Zendy; Allen Pei | Zendy; Jin Xie | Zendy; Wei Chen | Zendy; Jinwei Xu | Zendy; Yang Jin | Zendy; Tong Wu | Zendy; Xuanyi Huang | Zendy; Yi Cui | Zendy

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In Situ Investigation on the Nanoscale Capture and Evolution of Aerosols on Nanofibers

Author(s) -

Rufan Zhang,

Bofei Liu,

Ankun Yang,

Yangying Zhu,

Chong Liu,

Guangmin Zhou,

Jie Sun,

PoChun Hsu,

Wenting Zhao,

Dingchang Lin,

Yayuan Liu,

Allen Pei,

Jin Xie,

Wei Chen,

Jinwei Xu,

Yang Jin,

Tong Wu,

Xuanyi Huang,

Yi Cui

Publication year - 2018

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/acs.nanolett.7b04673

Subject(s) - nanofiber , wetting , nanoscopic scale , aerosol , polyimide , nanotechnology , materials science , filtration (mathematics) , nanoparticle , particle (ecology) , chemical engineering , chemical physics , chemistry , composite material , geology , layer (electronics) , statistics , mathematics , oceanography , organic chemistry , engineering

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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