Self-Powered Electrostatic Adsorption Face Mask Based on a Triboelectric Nanogenerator.
Guoxu LiuJinhui NieChangbao HanTao JiangZhiwei YangYaokun PangLiang XuTong GuoTianzhao BuChi ZhangZhong Lin WangPublished in: ACS applied materials & interfaces (2018)
The physical filtration mechanism of a traditional face mask has a low removal efficiency of ultrafine particulates in the size range of 10-1000 nm, which are badly harmful to human health. Herein, a novel self-powered electrostatic adsorption face mask (SEA-FM) based on the poly(vinylidene fluoride) electrospun nanofiber film (PVDF-ESNF) and a triboelectric nanogenerator (TENG) driven by respiration (R-TENG) is developed. The ultrafine particulates are electrostatically adsorbed by the PVDF-ESNF, and the R-TENG can continually provide electrostatic charges in this adsorption process by respiration. On the basis of the R-TENG, the SEA-FM shows that the removal efficiency of coarse and fine particulates is higher than 99.2 wt % and the removal efficiency of ultrafine particulates is still as high as 86.9 wt % after continually wearing for 240 min and a 30-day interval. This work has proposed as a new method of wearable air filtration and may have great prospects in human health, self-powered electronics, and wearable devices.
Keyphrases
- human health
- risk assessment
- particulate matter
- molecular dynamics simulations
- climate change
- aqueous solution
- air pollution
- positive airway pressure
- heart rate
- mental health
- obstructive sleep apnea
- physical activity
- photodynamic therapy
- molecular dynamics
- drinking water
- current status
- room temperature
- blood pressure
- sleep apnea
- tissue engineering
- light emitting