摩擦纳米发电机增强型纳米纤维空气过滤器用于高效去除颗粒物。
Triboelectric Nanogenerator Enhanced Nanofiber Air Filters for Efficient Particulate Matter Removal.
机构信息
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China.
CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) , Beijing 100190, China.
出版信息
ACS Nano. 2017 Jun 27;11(6):6211-6217. doi: 10.1021/acsnano.7b02321. Epub 2017 May 15.
We developed a high-efficiency rotating triboelectric nanogenerator (R-TENG) enhanced polyimide (PI) nanofiber air filter for particulate matter (PM) removal in ambient atmosphere. The PI electrospinning nanofiber film exhibited high removal efficiency for the PM particles that have diameters larger than 0.5 μm. When the R-TENG is connected, the removal efficiency of the filter is enhanced, especially when the particle diameters of the PM are smaller than 100 nm. The highest removal efficiency is 90.6% for particles with a diameter of 33.4 nm and the highest efficiency enhancement reaches 207.8% at the diameter of 76.4 nm where the removal efficiency enhanced from 27.1% to 83.6%. This technology with zero ozone release and low pressure drop offers an approach for air cleaning and haze treatment.
我们开发了一种高效的旋转摩擦纳米发电机（R-TENG）增强聚酰亚胺（PI）纳米纤维空气过滤器，用于去除环境大气中的颗粒物（PM）。PI 静电纺丝纳米纤维膜对直径大于 0.5μm 的 PM 颗粒具有很高的去除效率。当连接 R-TENG 时，过滤器的去除效率得到增强，特别是当 PM 的粒径小于 100nm 时。对于直径为 33.4nm 的颗粒，最高去除效率为 90.6%，在直径为 76.4nm 时，效率增强最高可达 207.8%，去除效率从 27.1%提高到 83.6%。这项技术零臭氧释放和低压降，为空气净化和雾霾处理提供了一种方法。
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