Ultra-high molecular weight polyethylene (UHMWPE) fibrous adsorbents with different molar content of amidoxime (M-AO) and acrylic acid (M-AA) were prepared by graft polymerization of acrylonitrile (AN) and acrylic acid (AA), followed by amidoximation. Uranium adsorption experiments in both artificial and natural sea-water were carried out to investigate the effect of M-AO and M-AA on the uranium adsorption capacity of UHMWPE fibrous adsorbents. Adsorption results showed that the UHMWPE fibrous adsorbent with M-AO = 4.27 and M-AA = 4.64 mmol/g-ads exhibited better uranium adsorption capacity in both artificial (7.01 mg-U/g-ads) and natural (0.77 mg-U/g-ads) seawater.
Li, R,Pang, LJ,Ma, HJ,et al. Optimization of molar content of amidoxime and acrylic acid in UHMWPE fibers for improvement of seawater uranium adsorption capacity[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2017-01-01,311(3):1771-1779.
