Selective and Adjustable Removal of Phenolic Compounds from Water by Biquaternary Ammonium Polyacrylonitrile Fibers.

ABSTRACT: A series of biquaternary ammonium-functionalized fibers were developed to efficiently realize selective removal of phenolic compounds from water. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy were employed to determine the successful preparation of functionalized fibers. Scanning electron microscopy, X-ray diffraction (XRD) patterns, and elemental analysis were used to analyze the microstructure and composition. First, the adsorption result shows that a fiber with a three-carbon alkyl chain (PAN_BQAS-3F) has the maximum adsorption capacity for 2,4-dinitrophenol (2,4-DNP) (406 mg g^-1). Electrostatic attraction and π-π interaction are the main forces in adsorption. The adsorption kinetics studies display that PAN_BQAS-3F can rapid

SUBMITTER: Feng J 

PROVIDER: S-EPMC8320098 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature