β-Cyclodextrin based air filter for high-efficiency filtration of pollution sources

Lu Wang; Yang Kang; Cheng-Yuan Xing; Kun Guo; Xiao-Qin Zhang; Li-Sheng Ding; Sheng Zhang; Bang-Jing Li

doi:10.1016/j.jhazmat.2019.03.087

β-Cyclodextrin based air filter for high-efficiency filtration of pollution sources

J Hazard Mater. 2019 Jul 5:373:197-203. doi: 10.1016/j.jhazmat.2019.03.087. Epub 2019 Mar 20.

Authors

Lu Wang¹, Yang Kang², Cheng-Yuan Xing², Kun Guo¹, Xiao-Qin Zhang³, Li-Sheng Ding², Sheng Zhang⁴, Bang-Jing Li⁵

Affiliations

¹ College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China.
² Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China.
³ State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University Sichuan University, Chengdu, 610065, China.
⁴ State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University Sichuan University, Chengdu, 610065, China. Electronic address: zslbj@163.com.
⁵ Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China. Electronic address: libj@cib.ac.cn.

PMID: 30921570
DOI: 10.1016/j.jhazmat.2019.03.087

Abstract

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 SO₂). The introduction of β-CD is supposed to be the key factor for improvement of air filter.

Keywords: Cyclodextrin; Electrospun fibrous membranes; Particulate matter.

Publication types

Research Support, Non-U.S. Gov't