Waste feather fiber based high extraction capacity bio-adsorbent for sustainable uranium extraction from seawater

被引：39
作者：
Pu, Yadong [2 ]
Qiang, Taotao [1 ,2 ]
Ren, Longfang [1 ,2 ]
机构：
[1] Shaanxi Univ Sci & Technol, Coll Bioresources & Mat Engn, Xian 710021, Shaanxi, Peoples R China
[2] Shaanxi Univ Sci & Technol, Natl Demonstrat Ctr Expt Light Chem Engn Educ, Xian 710021, Shaanxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2022年 / 206卷
关键词：
Waste feather fiber; Phosphonate; Adsorption; Marine test; Uranium extraction; FUNCTIONALIZED MESOPOROUS SILICA; ADSORPTION; RECOVERY; ANTIBACTERIAL; EFFICIENT; REMOVAL;
D O I：
10.1016/j.ijbiomac.2022.03.019
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Recycling uranium from seawater is of great significance to the development of nuclear industry. However, due to high salinity and low uranium concentration in seawater, there are still many challenges in current seawater uranium extraction technology. In this study, waste feather fibers (FF) were used as raw materials to develop a phosphonate-functionalized feather fiber (FF-PT). The study on the adsorption performance shows that FF-PT have good adsorption and recycling performance for uranium. The study on the adsorption performance shows that FF-PT have good adsorption and recycling performance for uranium. The adsorption capacity reaches up to 342.5 mg.g(-1) in the 8 ppm uranium solution, and service life of at least 10 cycles were obtained. In addition, in the environment with high salinity and the coexistence of metal competitive ions, FF-PT also shows excellent selectivity, and it can reach 3.22 mg.g(-1) adsorption capacity after immersed in natural seawater for 30 days. Combined with the results of economic analysis, we believe that the FF-PT has broad application prospects in the industrialized uranium extraction from seawater.
引用
收藏
页码：699 / 707
页数：9
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