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Review Article

Face Masks in the New COVID-19 Normal: Materials, Testing, and Perspectives

Figure 11

(a) Proposed capture mechanism of the MOF-based filter for air pollutants. Inset is the SEM image of the surface of the MOF/polymer composite fibre. (b) MOF filters based on various flexible substrates produced by a roll-to-roll hot-pressing method. (c–e) SEM images of the ZIF-8@plastic mesh achieved after seven layer-by-layer coating cycles. Reprinted with permission from Ref. [159] and Ref. [156]. Copyright 2016 and 2017, the American Chemical Society and WILEY-VCH.
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