Abstract
Amidoxime-based adsorbents are widely studied as the main adsorbent in the recovery of uranium from seawater. However, the adsorption rate and loading capacity of such adsorbents should be further improved due to the economic viability consideration. In this paper, polyvinyl alcohol functionalized with amidoxime (PVA-g-AO) has been prepared as a new adsorbent for uranium (VI) adsorption from aqueous solution. The physicochemical properties of PVA-g-AO were investigated using infrared spectroscopy (IR), scanning electron microscope (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Results showed that the ligand monomers were successfully grafted onto the matrixes. The XRD and XPS analysis showed that uranium was adsorbed in metal ionic form rather than in crystal form. Uranyl (U (VI)) adsorption properties onto PVA-g-AO were evaluated. The adsorption of U (VI) by PVA-g-AO was fast, with an equilibrium time of less than 50 min. Additionally the maximum adsorption capacity reached 42.84 mg/g at pH 4.0.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
