A strategy to facilitate the sedimentation and bactericidal properties of polypyrrole for fluoride removal from water

• Ag@PPy composite nanofibers were successfully synthesized by one-step method without additional oxidant. composites exhibit adsorption capacity of 7.02 mg/g for fluoride and fast kinetics within 60 min. High density 3.27 g/cm 3 makes the fine settlement performance from water. also show excellent bactericidal introduction silver. To facilitate separation properties polypyrrole (PPy) removal water, with nanofiber morphology fabricated direct redox reaction pyrrole monomer silver ion in acidic solution. The reduced is evenly distributed accounts 70 wt%. S BET aperture size have no obvious variation compared that primitive PPy, but isoelectric point up to 6.68 4.30 (PPy). experiment indicated good Subsequently, applied remove ions process pH-dependent, stability recyclability. Furthermore, high affinity kinetic min reach equilibrium. mechanism onto was investigated X-ray photoelectron spectroscopy (XPS), flourier transformation infrared (FT-IR), energy dispersive spectrometry (EDX). Meanwhile, Kirby-Bauer disc diffusion colony count used evaluate antibacterial property composites. results illustrated mainly an exchange mechanism, into enhanced performance, PPy.