Abstract
Uranium is the main actinide highly related with recycling fission fuel. In this study, we controllably construct a lignin-based covalent organic polymers (AO-EHL), for uranium extraction with high adsorption capacity (94.70 mg/g). The balanced adsorption efficiency for uranium is remarkably high under highly acidic conditions, and even maintains 99.99 % in pH = 1.0. Moreover, the high adaptability, excellent reusability, and extremely low operating costs further indicated the high feasibility of AO-EHL for uranium extraction in industrial scale. The excellent adsorption performance of AO-EHL for uranium is reasonably attributed to synthetic effects of amidoxime groups and the covalent structure of lignin, which can highly prevent the protonation of amidoxime groups, and thus showing strong complexation with uranium at high acidities. This study suggests a promising method to construct advanced functional materials by using cheap and green natural materials and realizing the efficient uranium extraction under highly acidic conditions.
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.
