Benignly-fabricated supramolecular poly(amidoxime)-alginate-poly(acrylic acid) beads synergistically enhance uranyl capture from seawater

doi:10.1016/j.cej.2022.136076

IMR OpenIR

	Benignly-fabricated supramolecular poly(amidoxime)-alginate-poly(acrylic acid) beads synergistically enhance uranyl capture from seawater
	Ahmad, Zia 1,2; Li, Yun 1; Ali, Sajjad 3; Yang, Jiajia 1,4; Jan, Faheem 5; Fan, Yun 1; Gou, Xiaoyi 6; Sun, Qingye 4; Chen, Jiping 1
通讯作者	Li, Yun(liyun@dicp.ac.cn) ; Chen, Jiping(chenjp@dicp.ac.cn)
	2022-08-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	441 页码:12
摘要	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.
关键词	Amidoxime Carboxyl Supramolecular synergistic Uranium Extraction Seawater
资助者	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
收录类别	SCI
语种	英语
资助项目	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研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000795645400003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174029
专题	中国科学院金属研究所
通讯作者	Li, Yun; Chen, Jiping
作者单位	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
推荐引用方式 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.