Core-shell hierarchical C@Na2Ti3O7 center dot 9H(2)O nanostructures for the efficient removal of radionuclides

	Core-shell hierarchical C@Na2Ti3O7 center dot 9H(2)O nanostructures for the efficient removal of radionuclides
	Tan, Xiaoli 1,3; Fang, Ming 1,2; Tan, Liqiang 1,3; Liu, Haining 4; Ye, Xiushen 4; Hayat, Tasawar 5; Wang, Xiangke 1,6
刊名	ENVIRONMENTAL SCIENCE-NANO
	2018-05-01
卷号	5 期号:5 页码:1140-1149
文献子类	Article
英文摘要	Titanate nanostructures are promising materials for their far superior performance in the uptake and immobilization of radioactive cations from wastewater. In this study, core-shell sodium titanate hierarchical nanostructures (C@Na2Ti3O7 center dot 9H(2)O, CSTHNs) were fabricated through a combination method (chemical deposition and hydrothermal reaction). The Brunauer-Emmett-Teller (BET) surface area of the CSTHNs is as high as 205.3 m(2) g(-1). CSTHNs show high removal capacities (Q(max) = 5.757 mmol g(-1), 8.151 mmol g(-1) and 4.846 mmol g(-1)) and large K-d values (10(3)-10(4) mL g(-1)) for Cs+, UO22+ and Eu3+ species. The ion exchange and inner-sphere complexation are used to explain the ability of CSTHNs to capture radioactive ions. The influence of valence, hardness and radius of cations on the ion exchange process and complexation are also discussed. The structural collapse of the CSTHNs and the irreversible entrapment of the radioactive cations were confirmed. These results indicate that target radionuclides are efficiently concentrated from water and tightly immobilized in the interlayer which is of great significance for the removal and subsequent safe disposal of hazardous radionuclides. This approach may be helpful for the design and fabrication of high performance adsorbents, and may be widely applied in pollution treatments.
WOS关键词	HEAVY-METAL IONS ; TITANATE NANOTUBES ; SODIUM TITANATE ; ABSOLUTE ELECTRONEGATIVITY ; HIGHLY EFFICIENT ; RADIOACTIVE IONS ; AQUEOUS-SOLUTION ; WATER ; ADSORPTION ; NANOFIBERS
WOS研究方向	Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000432684200010
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/6724]
专题	中国科学院青海盐湖研究所
通讯作者	Fang, Ming; Wang, Xiangke
作者单位	1.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China 2.Chinese Acad Sci, Inst Solid States Phys, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 4.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Qinghai, Peoples R China 5.King Abdulaziz Univ, Fac Sci, NAAM Res Grp, Jeddah 21589, Saudi Arabia 6.Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Suzhou, Peoples R China
推荐引用方式 GB/T 7714	Tan, Xiaoli,Fang, Ming,Tan, Liqiang,et al. Core-shell hierarchical C@Na2Ti3O7 center dot 9H(2)O nanostructures for the efficient removal of radionuclides[J]. ENVIRONMENTAL SCIENCE-NANO,2018,5(5):1140-1149.
APA	Tan, Xiaoli.,Fang, Ming.,Tan, Liqiang.,Liu, Haining.,Ye, Xiushen.,...&Wang, Xiangke.(2018).Core-shell hierarchical C@Na2Ti3O7 center dot 9H(2)O nanostructures for the efficient removal of radionuclides.ENVIRONMENTAL SCIENCE-NANO,5(5),1140-1149.
MLA	Tan, Xiaoli,et al."Core-shell hierarchical C@Na2Ti3O7 center dot 9H(2)O nanostructures for the efficient removal of radionuclides".ENVIRONMENTAL SCIENCE-NANO 5.5(2018):1140-1149.