AI Article Synopsis
- - The scientists made a special type of filter using a mix of poly(lactic acid) and a new material called ZIF-8@chitosan to make it better at blocking tiny particles.
- - This new filter worked really well, catching 96.79% of super small PM2.5 particles and 91.21% of slightly larger PM10 particles, which is much better than regular filters.
- - The filter also killed all the germs (like E. coli and S. aureus) that touched it after 8 hours, and it breaks down faster in nature compared to filters made just from poly(lactic acid).
Article Abstract
In order to improve the filtration efficiency of electrospinning poly(lactic acid) (PLA) membrane on particulate matter (PM), endow the membrane with good antibacterial properties, and accelerate the degradation effect of PLA materials in natural water and soil environments, ZIF-8@chitosan (ZIF-8@CS) was prepared by in situ growth method and was combined with PLA to manufacture the PLA/ZIF-8@CS electrospinning membranes. The PLA/ZIF-8@CS (3 wt%) membrane exhibited filtration efficiencies of 96.79 % for PM2.5 and 91.21 % for PM10, which were significantly higher than that of PP melt-blown cloth. Due to the inherently positive charge and the synergistic interaction between CS and ZIF-8, the antibacterial rates of PLA/ZIF-8@CS membranes were up to 100 % for E. coli and S. aureus after contact for 8 h. The addition of ZIF-8@CS in the membranes also influenced the degradation behavior of PLA/ZIF-8@CS membranes evidently.
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| http://dx.doi.org/10.1016/j.carbpol.2024.122427 | DOI Listing |
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