微粒
结垢
空气净化
赫帕
过滤(数学)
空气过滤
工艺工程
空气过滤器
空气净化器
水溶液
饮用水净化
污染物
吸收(声学)
材料科学
滤波器(信号处理)
环境科学
化学工程
废物管理
化学
计算机科学
环境工程
复合材料
机械工程
工程类
有机化学
膜
数学
入口
生物化学
计算机视觉
统计
作者
Yunmao Zhang,Yuhang Han,Xiaoliang Ji,Duyang Zang,Qiao Liu,Zhizhi Sheng,Chunyan Wang,Shuli Wang,Miao Wang,Yaqi Hou,Xinyu Chen,Xu Hou
出处
期刊:Nature
[Springer Nature]
日期:2022-09-26
卷期号:610 (7930): 74-80
被引量:30
标识
DOI:10.1038/s41586-022-05124-y
摘要
The adverse impact of particulate air pollution on human health1,2 has prompted the development of purification systems that filter particulates out of air3,4,5. To maintain performance, the filter units must inevitably be replaced at some point, which requires maintenance, involves costs and generates solid waste6,7. Here we show that an ion-doped conjugated polymer-coated matrix infiltrated with a selected functional liquid enables efficient, continuous and maintenance-free air purification. As the air to be purified moves through the system in the form of bubbles, the functional fluid provides interfaces for filtration and for removal of particulate matter and pollutant molecules from air. Theoretical modelling and experimental results demonstrate that the system exhibits high efficiency and robustness: its one-time air purification efficiency can reach 99.6%, and its dust-holding capacity can reach 950 g m−2. The system is durable and resistant to fouling and corrosion, and the liquid acting as filter can be reused and adjusted to also enable removal of bacteria or odours. We anticipate that our purification approach will be useful for the development of specialist air purifiers that might prove useful in a settings such as hospitals, factories and mines.
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