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Ultrahigh and economical uranium extraction from seawater via interconnected open-pore architecture poly(amidoxime) fiber
Xu, X; Xu, L; Ao, JX; Liang, YL; Li, C; Wang, YJ; Huang, C; Ye, F; Li, QN; Guo, XJ; Li, JY; Wang, HT; Ma, SQ; Ma, HJ
2020
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume8Issue:42Pages:22032-22044
Subtype期刊论文
AbstractEffectively addressing global warming requires a rapid transformation of the ways in which energy is consumed, and nuclear power produces very low lifecycle carbon emissions. Efficient uranium extraction from unconventional uranium ore sources, such as the ocean, can provide a stable and long-term supply of nuclear fuel for nuclear power plants. Herein, we report an interconnected open-pore architecture poly(amidoxime) (PAO) fiber with PAO nanoparticles and a nano-channel structure (AO-OpNpNc) using a top-down design. A high uranium adsorption capacity of 17.57 mg-U per g-adsorbent in natural seawater and ultra-long service life of at least 30 cycles were obtained, which are the highest values among currently available adsorbents to our knowledge. Extended X-ray absorption fine structure (EXAFS) fits and density functional theory (DFT) computational studies suggest that PAO-bound uranyl is a cooperative chelating model. More importantly, uranium production costs could be reduced to $80.70-86.25 per kg of uranium with this fiber, which is similar to the uranium spot price of $86.68 per kg of uranium and lower than the costs of all currently available adsorbents. The exceptional durability of the AO-OpNpNc fibers suggests the possibility of economically producing nuclear fuel from the ocean.
KeywordAMIDOXIME RECOVERY ADSORPTION COMPLEXATION DEFORMATION ADSORBENTS MECHANISMS SEPARATION
DOI10.1039/d0ta07180c
Indexed BySCI ; EI
Language英语
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33239
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Xiamen Univ, Ctr Mol Imaging & Translat Med, Sch Publ Hlth, Xiamen 361102, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
3.Shanghai Normal Univ, Dept Chem & Chem Engn, Shanghai 200234, Peoples R China
4.Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Peoples R China
5.Univ North Texas, Dept Chem, 1508 Mulberry St, Denton, TX 76201 USA
Recommended Citation
GB/T 7714
Xu, X,Xu, L,Ao, JX,et al. Ultrahigh and economical uranium extraction from seawater via interconnected open-pore architecture poly(amidoxime) fiber[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(42):22032-22044.
APA Xu, X.,Xu, L.,Ao, JX.,Liang, YL.,Li, C.,...&Ma, HJ.(2020).Ultrahigh and economical uranium extraction from seawater via interconnected open-pore architecture poly(amidoxime) fiber.JOURNAL OF MATERIALS CHEMISTRY A,8(42),22032-22044.
MLA Xu, X,et al."Ultrahigh and economical uranium extraction from seawater via interconnected open-pore architecture poly(amidoxime) fiber".JOURNAL OF MATERIALS CHEMISTRY A 8.42(2020):22032-22044.
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