基于β-环糊精的空气过滤器，用于高效过滤污染源。
β-Cyclodextrin based air filter for high-efficiency filtration of pollution sources.
机构信息
College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China.
Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China.
出版信息
J Hazard Mater. 2019 Jul 5;373:197-203. doi: 10.1016/j.jhazmat.2019.03.087. Epub 2019 Mar 20.
Airborne particulate matter (PM) pollution has become a serious environmental problem. Thus, there is a need for the development of air filters with satisfactory overall performance. In this paper, we develop a kind of β-cyclodextrin (β-CD) based air filter with high strength, which has not only high filtration efficiency (about 99%) but also good air permeability (the pressure drop is only 45Pa). Especially after long-term application, the pression drop of β-cyclodextrin based was less than half of the commercial air-filter. Additionally, the material can capture the toxic gasous chemicals (e.g. formaldehyde and SO). The introduction of β-CD is supposed to be the key factor for improvement of air filter.
空气中的颗粒物（PM）污染已经成为一个严重的环境问题。因此，开发具有满意整体性能的空气过滤器是十分必要的。在本文中，我们开发了一种基于β-环糊精（β-CD）的空气过滤器，它具有高强度，不仅过滤效率高（约 99%），而且空气通透性好（压降仅为 45Pa）。特别是经过长期使用后，β-环糊精基的压降还不到商用空气过滤器的一半。此外，这种材料还可以捕获有毒的气态化学物质（如甲醛和 SO）。β-CD 的引入被认为是提高空气过滤器性能的关键因素。
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