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

被引：5
作者：
Lei, Fuan [1 ,2 ]
Zhang, Weibo [2 ]
Zhou, Yun [2 ]
Zhou, Ningyuan [2 ]
Liu, Tonghuan [1 ,2 ]
Shi, Keliang [1 ,2 ]
Wu, Wangsuo [1 ,2 ]
Gao, Xiaoqing [1 ,2 ]
Yang, Junqiang [1 ,2 ]
机构：
[1] Lanzhou Univ, Frontier Sci Ctr Rare Isotopes, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Amidoxime carboxyl functional resin; Large particle size; Uranium; Adsorption; Wastewater; AQUEOUS-SOLUTION; U(VI); ADSORPTION; ACID; NANOSPHERES; EXTRACTION; COMPOSITE; BEHAVIOR; METALS; FIBERS;
D O I：
10.1007/s10967-022-08711-5
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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 mu m) 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.
引用
收藏
页码：1135 / 1147
页数：13
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