ZIF-8 Modified Nanofiber Composite Window Screen for Efficient Indoor PM2.5 and Formaldehyde Removal 


Vol. 23,  No. 8, pp. 2176-2187, Aug.  2022
10.1007/s12221-022-4221-1


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  Abstract

Because people spend a lot of time indoors every day, the presence of particulate matter with a diameter less than 2.5 關m (PM2.5) and volatile organic molecular substances in indoor air adversely affect public health. These toxic compounds can be removed from the air using high-efficiency air-filter materials with adsorption capacity. Metal-organic frameworks (MOFs) are among the most suitable materials for air purification as they are synthetic porous materials with excellent adsorption ability. In this study, the zeolitic imidazolate framework-8 (ZIF-8) is uniformly grown on the surface of polyacrylonitrile (PAN) nanofibers using an in situ growth method to prepare ZIF-8@PAN nanofiber composite membranes. The nanofiber composite membrane effectively removes PM2.5 and formaldehyde from the air. After loading the optimal amount of ZIF-8, the filtration efficiency of the nanofiber membrane for salt aerosol with a diameter of 0.3 關m increases from 90.3 % to 96.9 %, and the removal rate of formaldehyde becomes 98 % within 20 min in the enclosed space of the laboratory. Moreover, after five repeated tests, the formaldehyde adsorption rate remains above 80 %. In addition, ZIF-8@PAN nanofiber membranes are used to fabricate anti-haze window screens, which have great potential to improve indoor air quality and mitigate related health risks.

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  Cite this article

[IEEE Style]

F. Liu, T. Lu, W. Bu, H. Xiang, J. Yang, J. Li, X. Zhao, W. Shao, Q. Ni, J. He, "ZIF-8 Modified Nanofiber Composite Window Screen for Efficient Indoor PM2.5 and Formaldehyde Removal," Fibers and Polymers, vol. 23, no. 8, pp. 2176-2187, 2022. DOI: 10.1007/s12221-022-4221-1.

[ACM Style]

Fan Liu, Tong Lu, Wanjun Bu, Hewei Xiang, Junjie Yang, Junli Li, Xu Zhao, Weili Shao, Qingqing Ni, and Jianxin He. 2022. ZIF-8 Modified Nanofiber Composite Window Screen for Efficient Indoor PM2.5 and Formaldehyde Removal. Fibers and Polymers, 23, 8, (2022), 2176-2187. DOI: 10.1007/s12221-022-4221-1.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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