| Benignly-fabricated supramolecular poly(amidoxime)-alginate-poly(acrylic acid) beads synergistically enhance uranyl capture from seawater | |
| Ahmad, Zia1,2; Li, Yun1; Ali, Sajjad3; Yang, Jiajia1,4; Jan, Faheem5; Fan, Yun1; Gou, Xiaoyi6; Sun, Qingye4; Chen, Jiping1 | |
| Corresponding Author | Li, Yun(liyun@dicp.ac.cn) ; Chen, Jiping(chenjp@dicp.ac.cn) |
| 2022-08-01 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 441Pages:12 |
| Abstract | Design of amidoxime-based adsorbents in a cooperative and synergistic manner together with a concept of facile and green fabrication is becoming highly desirable to harvest uranium from seawater. Herein, taking benefit of supramolecular ionic-crosslinking and hydrogen bonding interactions, we have reported a simple and environmentally benign approach to construct novel bifunctional poly(amidoxime)-alginate-poly(acrylic acid) (PAO-APAA) composite beads. As a result of synergistic uranyl binding, the PAO-A-PAA composite beads reached a high adsorption capacity of 735.1 mg g-1 for uranium aqueous solution (36 ppm), which is 2.24 and 1.46 times that of monofunctional Alg-PAA (328.1 mg g-1) and Alg-PAO (502.2 mg g-1), respectively. More importantly, the PAOA-PAA exhibits excellent selectivity towards U(VI) in the presence of natural organic matter and multiple coexisting metal ions in simulated seawater. The XPS analysis reveals the utilization and coordination of both amidoxime and carboxylate ligands of PAO-A-PAA for uranyl binding, which results in energetically more stable synergistic uranyl complexes (Ebinding = -9.45 to -10.34 eV) as proved by the density functional theory study. The adsorption efficiency of PAO-A-PAA is further supported by its ability to extract mu g L-1-level uranium in real seawater (94.7-99.5%). The PAO-A-PAA also demonstrates good mechanical and chemical stability over a wide pH range, as well as good reusability. These findings provide insight into the significance of designing efficient sorbent material for enhanced uranyl capture via a supramolecular strategy. |
| Keyword | Amidoxime Carboxyl Supramolecular synergistic Uranium Extraction Seawater |
| Funding Organization | National Natural Science Foundation of China ; Dalian Sci-ence and Technology Bureau Innovation Fund ; DICP ; Natural Science Foundation of Liaoning Province |
| DOI | 10.1016/j.cej.2022.136076 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[21705149] ; National Natural Science Foundation of China[21777159] ; Dalian Sci-ence and Technology Bureau Innovation Fund[2020JJ26SN057] ; DICP[I202001] ; Natural Science Foundation of Liaoning Province[2019-MS-317] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000795645400003 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174029 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Yun; Chen, Jiping |
| Affiliation | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 4.Hebei Univ Engn, Coll Mat Sci & Engn, 19 Taiji Rd, Handan 056038, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 6.Dalian Jiaotong Univ, Sch Mat Sci & Engn, Dalian 116028, Peoples R China |
| Recommended Citation GB/T 7714 | Ahmad, Zia,Li, Yun,Ali, Sajjad,et al. Benignly-fabricated supramolecular poly(amidoxime)-alginate-poly(acrylic acid) beads synergistically enhance uranyl capture from seawater[J]. CHEMICAL ENGINEERING JOURNAL,2022,441:12. |
| APA | Ahmad, Zia.,Li, Yun.,Ali, Sajjad.,Yang, Jiajia.,Jan, Faheem.,...&Chen, Jiping.(2022).Benignly-fabricated supramolecular poly(amidoxime)-alginate-poly(acrylic acid) beads synergistically enhance uranyl capture from seawater.CHEMICAL ENGINEERING JOURNAL,441,12. |
| MLA | Ahmad, Zia,et al."Benignly-fabricated supramolecular poly(amidoxime)-alginate-poly(acrylic acid) beads synergistically enhance uranyl capture from seawater".CHEMICAL ENGINEERING JOURNAL 441(2022):12. |
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