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Amphiphilic Ti3C2/exfoliated bentonite@polyurethane sponge grafting both hydrophobic groups and polar oxygen-containing groups for efficient removal of multi-polar microplastics
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Amphiphilic Ti3C2/exfoliated bentonite@polyurethane sponge grafting both hydrophobic groups and polar oxygen-containing groups for efficient removal of multi-polar microplastics
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Most water treatment materials can only capture one type of microplastic, because different plastics have very different surface chemistries. Researchers engineered a modified polyurethane foam — made from waste PU sponges — that simultaneously attracts both polar (like PVC) and non-polar (like polyethylene) microplastics through a combination of hydrogen bonding and van der Waals forces, achieving over 99% removal of six different plastic types within 30 minutes. This "amphiphilic" material retained its effectiveness over 10 reuse cycles, making it a promising and practical approach for removing diverse microplastics from wastewater.
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