Spider-Web-Inspired PM0.3 Filters Based on Self-Sustained Electrostatic Nanostructured Networks.

Advanced Materials
Shichao ZhangBin Ding

Abstract

Particulate matter (PM) pollution has become a serious public health issue, especially with outbreaks of emerging infectious diseases. However, most present filters are bulky, opaque, and show low-efficiency PM0.3 /pathogen interception and inevitable trade-off between PM removal and air permeability. Here, a unique electrospraying-netting technique is used to create spider-web-inspired network generator (SWING) air filters. Manipulation of the dynamic of the Taylor cone and phase separation of its ejected droplets enable the generation of 2D self-charging nanostructured networks on a large scale. The resultant SWING filters show exceptional long-range electrostatic property driven by aeolian vibration, enabling self-sustained PM adhesion. Combined with their Steiner-tree-structured pores (size 200-300 nm) consisting of nanowires (diameter 12 nm), the SWING filters exhibit high efficiency (>99.995% PM0.3 removal), low air resistance (<0.09% atmosphere pressure), high transparency (>82%), and remarkable bioprotective activity for biohazard pathogens. This work may shed light on designing new fibrous materials for environmental and energy applications.

References

Aug 16, 2002·Nature·Zhengzhong Shao, Fritz Vollrath
Feb 22, 2008·Nature·Kate E JonesPeter Daszak
Sep 12, 2013·Nature Communications·Eden StevenJames S Brooks
Jan 21, 2015·ACS Nano·Guangming GongLei Jiang
Feb 17, 2015·Nature Communications·Chong LiuYi Cui
Jun 17, 2015·Environmental Science & Technology·Joshua S ApteMichael Brauer
Mar 24, 2016·Nature Communications·Chenhong LangTong Lin
Dec 3, 2016·Nature Communications·Zheng LiChao Gao
Jul 15, 2017·Science·C Jessica E Metcalf, Justin Lessler
Mar 16, 2018·Nature Protocols·Clarisse RibeiroSenentxu Lanceros-Méndez
Jan 22, 2019·Journal of Aerosol Science·Sunil Kumar BodaJingwei Xie
Mar 7, 2020·Nature·Simon PeronKarel Svoboda

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Citations

Feb 11, 2021·ACS Applied Materials & Interfaces·Xin FanWei-Hong Zhong
Mar 23, 2021·Advanced Science·Sejin ChoiSung Yeon Hwang
May 12, 2021·ACS Applied Materials & Interfaces·Tao LuChaobo Huang
Nov 26, 2021·ACS Applied Materials & Interfaces·Ruihong ZhangBin Ding

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Methods Mentioned

BETA
transmission electron microscopy
surface filtration

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