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	Large-pore 3d cubic mesoporous (kit-6) hybrid bearing a hard-soft donor combined ligand for enhancing u(vi) capture: an experimental and theoretical investigation
	Yuan, Li-Yong1; Zhu, Lin1,2,3; Xiao, Cheng-Liang2,3; Wu, Qun-Yan1; Zhang, Nan1; Yu, Ji-Pan1; Chai, Zhi-Fang1,2,3; Shi, Wei-Qun1
刊名	Acs applied materials & interfaces
	2017-02-01
卷号	9期号:4页码:3774-3784
关键词	Phenanthroline Mesoporous silica Kit-6 Uranium Dft
ISSN号	1944-8244
DOI	10.1021/acsami.6b15642
通讯作者	Xiao, cheng-liang(xiaoc@suda.edu.cn) ; Shi, wei-qun(shiwq@ihep.ac.cn)
英文摘要	A preorganized tetradentate phenanthrolineamide (daphen) ligand with hard and soft donors combined in the same molecule has been found to possess high extraction ability toward actinides over lanthanides from acidic aqueous solution in our previous work. herein we grafted phenanthrolineamide groups onto a large-pore three-dimensional cubic silica support by the reaction of daphen siloxane with kit-6 substrate to prepare a novel uranium-selective sorbent, kit-6-daphen. the as-synthesized sorbent was well-characterized by scanning electron microscopy, high-resolution transmission electron microscopy, n-2 adsorption/desorption, x-ray diffraction, ft-ir, c-13 cross-polarization magic-angle spinning nmr, and tga techniques, which confirmed the consummation of the functionalization. subsequently, the effects of contact time, solution ph, initial u(vi) concentration, and the presence of competing metal ions on the u(vi) sorption onto kit-6-daphen sorbent were investigated in detail. it was found that kit-6-daphen showed largely enhanced sorption capacity and excellent selectivity toward u(vi). the maximum sorption capacity of kit-6-daphen at ph 5.0 reaches 328 mg of u/g of sorbent, which is superior to most of functionalized mesoporous silica materials. density functional theory coupled with quasi-relativistic small-core pseudopotentials was used to explore the sorption interaction between u(vi) and kit-6-daphen, which gives a sorption reaction of kit-6-daphen + [uo2(h2o)(5)](2+) + no3- reversible arrow [uo2(kit-6-daphen)(no3)](+) + 5h(2)o. the findings of the present work provide new clues for developing new actinide sorbents by combining new ligands with various mesoporous matrixes.
WOS关键词	AQUEOUS-SOLUTION ; FUNCTIONALIZED SBA-15 ; URANIUM EXTRACTION ; HIGHLY EFFICIENT ; URANYL IONS ; BASIS-SETS ; SILICA ; PHOSPHONATE ; ADSORPTION ; SORPTION
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000393355900060
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176831
专题	高能物理研究所
通讯作者	Xiao, Cheng-Liang; Shi, Wei-Qun
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China 2.Soochow Univ, Sch Radiol & Interdisciplinary Sci RAD X, Suzhou 215123, Peoples R China 3.Soochow Univ, Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Li-Yong,Zhu, Lin,Xiao, Cheng-Liang,et al. Large-pore 3d cubic mesoporous (kit-6) hybrid bearing a hard-soft donor combined ligand for enhancing u(vi) capture: an experimental and theoretical investigation[J]. Acs applied materials & interfaces,2017,9(4):3774-3784.
APA	Yuan, Li-Yong.,Zhu, Lin.,Xiao, Cheng-Liang.,Wu, Qun-Yan.,Zhang, Nan.,...&Shi, Wei-Qun.(2017).Large-pore 3d cubic mesoporous (kit-6) hybrid bearing a hard-soft donor combined ligand for enhancing u(vi) capture: an experimental and theoretical investigation.Acs applied materials & interfaces,9(4),3774-3784.
MLA	Yuan, Li-Yong,et al."Large-pore 3d cubic mesoporous (kit-6) hybrid bearing a hard-soft donor combined ligand for enhancing u(vi) capture: an experimental and theoretical investigation".Acs applied materials & interfaces 9.4(2017):3774-3784.

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