Wang Feijie, Wang Suyang, Liu Yichi, Ouyang Shiqiang, Sun Danni, Yang Xiaoye, Li Jinmin, Wu Zhen, Qian Jing, Zhao Zhicheng, Wang Liqiang, Jia Chao, Ma Shufeng
Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China.
College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China.
Nano Lett. 2024 Mar 6;24(9):2861-2869. doi: 10.1021/acs.nanolett.3c05089. Epub 2024 Feb 26.
Advanced portable healthcare devices with high efficiencies, small pressure drops, and high-temperature resistance are urgently desired in harsh environments with high temperatures, high humidities, and high levels of atmospheric pollution. Triboelectric nanogenerators (TENGs), which serve as energy converters in a revolutionary self-powered sensor device, present a sustainable solution for meeting these requirements. In this work, we developed a porous negative triboelectric material by synthesizing ZIF-8 on the surface of a cellulose/graphene oxide aerogel, grafting it with trimethoxy(1,1,2,2-heptadecafluorodecyl)silane, and adding a negative corona treatment, and it was combined with a positive triboelectric material to create a cellulose nanofiber-based TENG self-powered filter. The devices achieved a balance between a small pressure drop (53 Pa) and high filtration efficiency (98.97%, 99.65%, and 99.93% for PM, PM, and PM, respectively), demonstrating robust filtration properties at high temperatures and high humidities. Our work provides a new approach for developing self-powered wearable healthcare devices with excellent air filtration properties.
在高温、高湿和高大气污染水平的恶劣环境中，迫切需要具有高效率、小压降和耐高温的先进便携式医疗设备。作为一种革命性的自供电传感器设备中的能量转换器，摩擦纳米发电机（TENG）为满足这些要求提供了一种可持续的解决方案。在这项工作中，我们通过在纤维素/氧化石墨烯气凝胶表面合成ZIF-8，用三甲氧基（1,1,2,2-十七氟癸基）硅烷接枝，并进行负电晕处理，开发了一种多孔负摩擦电材料，并将其与正摩擦电材料结合，制成了一种基于纤维素纳米纤维的TENG自供电过滤器。这些设备在小压降（53 Pa）和高过滤效率（PM、PM和PM的过滤效率分别为98.97%、99.65%和99.93%）之间取得了平衡，在高温高湿环境下展现出强大的过滤性能。我们的工作为开发具有优异空气过滤性能的自供电可穿戴医疗设备提供了一种新方法。
