Efficient removal of uranium from wastewater using amidoxime-carboxyl functional resin with large particle size

Developing novel adsorbents for efficient U(VI) adsorption from wastewater is of great significance in both nuclear energy development and environmental protection. Herein, a novel functional resin (AO67/MA33-resin) with large particle size (100–200 μm) was controllably synthesized and employed for...

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Published in:Journal of radioanalytical and nuclear chemistry 2023-04, Vol.332 (4), p.1135-1147
Main Authors: Lei, Fuan, Zhang, Weibo, Zhou, Yun, Zhou, Ningyuan, Liu, Tonghuan, Shi, Keliang, Wu, Wangsuo, Gao, Xiaoqing, Yang, Junqiang
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Chelation
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Energy development
Environmental protection
Functional groups
Hadrons
Heavy Ions
High temperature
Inorganic Chemistry
Nuclear Chemistry
Nuclear energy
Nuclear fuel cycle
Nuclear Physics
Nuclear reactor components
Nuclear reactors
Particle size
Physical Chemistry
Resins
Uranium
Wastewater
Wastewater treatment
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Summary:Developing novel adsorbents for efficient U(VI) adsorption from wastewater is of great significance in both nuclear energy development and environmental protection. Herein, a novel functional resin (AO67/MA33-resin) with large particle size (100–200 μm) was controllably synthesized and employed for U(VI) elimination. The AO67/MA33-resin overcomes the shortcoming of small particle size of traditional adsorbents and shows strong antacid and high-temperature resistance stability and reusability. Meanwhile, the AO67/MA33-resin also exhibits excellent U(VI) removal ability including wide pH adaptability, fast adsorption kinetic, and high adsorption capacity. The adsorption mechanism was determined to involve chelation between amidoxime carboxyl functional groups and uranyl ions. A further application for U(VI) removal from real uranium mine wastewater was evaluated by dynamic column experiments. The present work indicated that the AO67/MA33-resin would be a promising adsorbent material for uranium removal from wastewater.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-022-08711-5