Porous poly(amidoxime)-graft-chitosan/graphene oxide hydrogel beads for efficient uranium extraction from seawater
- 1. North China Electric Power University, Beijing (China). MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering
Description
Freestanding materials with effective seawater uranium extraction performance are urgently needed for the nuclear industry. In this work, porous hydrogel beads were fabricated by compositing poly(amidoxime)-graft-chitosan (PAO-CS) and graphene oxide (GO). The PAO-CS/GO beads integrate the advantages of high-affinity amidoxime moiety, stable interconnected porous skeleton and superior hydrophilicity. The optimized structure and properties endowed PAO-CS/GO beads with a high adsorption capacity (467.07 mg g-1), good ion selectivity and recoverability, with 97% extraction efficiency in simulated seawater of different concentrations (8, 16, and 32 ppm). This study emphasizes designing materials with deployment advantages for uranium extraction from seawater. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 333
- Journal Issue
- 12
- Journal Page Range
- p. 6351-6359
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 56006937
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- EXTRACTION; GRAPHENE; HYDROGELS; OXIDES; OXIMES; POLYSACCHARIDES; POROUS MATERIALS; SEAWATER; URANIUM
- Descriptors DEC
- ACTINIDES; AMINES; CARBOHYDRATES; CARBON; CHALCOGENIDES; COLLOIDS; DISPERSIONS; ELEMENTS; GELS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; MATERIALS; METALS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; SACCHARIDES; SEPARATION PROCESSES; WATER
Optional Information
- Notes
- 48 refs.