Fig. 7: Compositional and structural characterization of the polypropylene filter membranes after photoactivation with and without 1D microswarm. | Nature Communications

Fig. 7: Compositional and structural characterization of the polypropylene filter membranes after photoactivation with and without 1D microswarm.

From: Magnetically boosted 1D photoactive microswarm for COVID-19 face mask disruption

Fig. 7

a FTIR-ATR spectra, b carbonyl index, and c TGA curves of the PP filter membranes after photoactivation with and without treatment of the 1D microswarm boosting. d, e Representative SEM-EDX elemental mapping images after photoactivation (d) and comparison of oxygen content in elemental composition determined by EDX analysis (e). Error bars in e denote standard deviation from triplicate measurements.

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