Evaporation of droplets capable of bearing viruses airborne and on hydrophobic surfaces
Evaporation of droplets capable of bearing viruses airborne and on hydrophobic surfaces
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DOI：
10.1063/5.0023501
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发表时间：
2021-01-14
影响因子：
3.2
通讯作者：
Nosonovsky, Michael
中科院分区：
文献类型：
--
作者：
Hasan, Md Syam;Sobolev, Konstantin;Nosonovsky, Michael
空气传播和沉积的水微滴可携带包括冠状病毒在内的病毒。含有病毒颗粒的微滴蒸发往往导致病毒失活。微液滴蒸发涉及多种机制，如扩散、开尔文效应、红外辐射和溶质的作用。对于空气中水微滴的蒸发，环境空气的温度和相对湿度是重要的影响因素。然而，对于沉积在固体表面上的固体液滴，润湿和孔隙度成为控制常规、超疏水和光催化表面蒸发的重要因素。实验研究了聚丙烯医用无纺布的润湿性能和孔隙率对蒸发速率的影响，结果与理论模型一致。高孔隙表面的蒸发速率是无孔隙表面的2.2-4倍。
Airborne and deposited water microdroplets can carry viruses including coronaviruses. The evaporation of microdroplets containing virus particles often leads to virus inactivation. Microdroplet evaporation involves various mechanisms such as diffusion, the Kelvin effect, infrared irradiation, and the role of solutes. For the evaporation of airborne water microdroplets, temperature and relative humidity of ambient air are important factors. However, for sessile droplets deposited on solid surfaces, wetting and porosity become important factors that control evaporation on regular, superhydrophobic, and photocatalytic surfaces. An experimental study of the effect of wetting properties and porosity on the evaporation rates on the polypropylene non-woven medical fabric was consistent with the theoretical models. Highly porous tile surfaces exhibited 2.2-4 times faster evaporation rates than nonporous surfaces.