Antibacterial behavior of halloysite nanotubes decorated with copper nanoparticles in a novel mixed matrix membrane for water purification

摘要: Poly(4-vinylpyridine) (P4VP) with various molecular weights was grafted onto halloysite nanotubes (HNTs) via reverse atom transfer radical polymerization (RATRP). Then copper nanoparticles (Cu NPs) were loaded the surface of HNTs by complexation and reduction NPs@HNTs). Finally, a novel mixed matrix membrane, polyethersulfone (PES) ultrafiltration containing Cu NPs@HNTs fabricated classical phase inversion method. The results showed that pure water flux hybrid membrane greatly enhanced, maximum could reach as high 212 L m−2 h−1. contact angle atomic force microscopy (AFM) indicated hydrophilicity prepared membranes improved became smoother, compared virgin membranes. Importantly, antibacterial test good activity against E. coli bacteriostasis rate 94.5%.