▎ 摘　　要

Novel hollow fibre polysulphone (PSF) separation membranes were prepared via the incorporation of carboxylated graphene oxide (cGO) in membrane matrix during the dry-wet spinning process to improve the membrane performance of water flux and dye adsorption. The surface composition and morphology of the prepared cGO-incorporated hollow fibre membranes were characterised by means of Fourier Transform-infrared spectra and scanning electron microscopy. The effects of different cGO contents on membrane surface hydrophilicity, separation performance, anti-compaction and adsorption properties were investigated through measurements of the water contact angle, cross-flow filtration and methylene blue (MB) adsorption experiments. The results demonstrated that the cGO-incorporated membranes had more hydrophilic surfaces, higher permeation flux, better anti-compaction properties and a higher adsorption rate of MB than that of the PSF control membrane. When cGO content was 0.45 wt.%, the pure water flux of the modified membrane increased from 90.56 to 148.26 l m(-2) h(-1) at 0.1 MPa; also, rejections of bovine serum albumin and polyethylene glycol (PEG-20000) maintained relatively high values of 98.81 and 93.89%, respectively. The incorporation of cGO nanosheets could effectively improve membrane anti-compaction properties and the adsorption rate of MB.