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Enhancing air filtration efficiency with triboelectric nanogenerators in face masks and industrial filters
Nano Energy ( IF 17.6 ) Pub Date : 2023-05-09 , DOI: 10.1016/j.nanoen.2023.108514
Masoumeh Karimi Kisomi, Sadegh Seddighi, Raheleh Mohammadpour, Alireza Rezaniakolaei

The removal efficiency of traditional air filters decreases with decreasing particle size, requiring the use of highly compact filter layers to achieve high efficiency, resulting in high-pressure drops and power consumption. To address this issue, this study proposes a novel approach by combining triboelectric nanogenerator (TENG) properties with industrial air filters and face masks to improve removal efficiency while maintaining low-pressure drop. The study investigates the impacts of key parameters, such as airflow velocity, particle size, and applied voltage, on filter performance through a developed mathematical model. The optimal voltage range required to remove specific particle sizes is also modeled, and suitable triboelectric materials for producing the optimal voltage are suggested. Results show that the use of the suggested triboelectric-based filter, generated using a polypropylene (PP)-polyurethane (PU) TENG pair, with a 300 µm filter thickness, 30 µm pore size, and 30 µm fiber diameter, enhances the removal efficiency of particles from 23.0 % to 99.0 %. Specifically, a 10 V voltage on the fiber surface enables the removal of particles in the range of 10 nm to 100 µm with an efficiency of 99.0 %, which is 4 times higher than a traditional filter. The study demonstrates the potential of utilizing various antibacterial and polymer-based triboelectric materials in different applications, including self-powered smart face masks and industrial air filters.



中文翻译:

在面罩和工业过滤器中使用摩擦纳米发电机提高空气过滤效率

传统空气过滤器的去除效率随着粒径的减小而降低,需要使用高度致密的滤层来实现高效,从而导致高压降和功耗。为了解决这个问题,本研究提出了一种新方法,将摩擦纳米发电机 (TENG) 的特性与工业空气过滤器和面罩相结合,以提高去除效率,同时保持低压降。该研究通过开发的数学模型研究了气流速度、颗粒大小和施加电压等关键参数对过滤器性能的影响。还对去除特定粒径所需的最佳电压范围进行了建模,并建议了用于产生最佳电压的合适的摩擦电材料。结果表明,使用建议的摩擦电过滤器,使用聚丙烯 (PP)-聚氨酯 (PU) TENG 对生成,过滤器厚度为 300 µm,孔径为 30 µm,纤维直径为 30 µm,可提高去除效率颗粒从 23.0 % 到 99.0 %。具体而言,纤维表面上的 10 V 电压能够以 99.0% 的效率去除 10 nm 至 100 µm 范围内的颗粒,比传统过滤器高 4 倍。该研究展示了在不同应用中利用各种抗菌和聚合物基摩擦电材料的潜力,包括自供电智能面罩和工业空气过滤器。将颗粒的去除效率从 23.0% 提高到 99.0%。具体而言,纤维表面上的 10 V 电压能够以 99.0% 的效率去除 10 nm 至 100 µm 范围内的颗粒,比传统过滤器高 4 倍。该研究展示了在不同应用中利用各种抗菌和聚合物基摩擦电材料的潜力,包括自供电智能面罩和工业空气过滤器。将颗粒的去除效率从 23.0% 提高到 99.0%。具体而言,纤维表面上的 10 V 电压能够以 99.0% 的效率去除 10 nm 至 100 µm 范围内的颗粒,比传统过滤器高 4 倍。该研究展示了在不同应用中利用各种抗菌和聚合物基摩擦电材料的潜力,包括自供电智能面罩和工业空气过滤器。

更新日期:2023-05-12
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