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Core-shell hierarchical C@Na2Ti3O7 center dot 9H(2)O nanostructures for the efficient removal of radionuclides
Tan, Xiaoli1,3; Fang, Ming1,2; Tan, Liqiang1,3; Liu, Haining4; Ye, Xiushen4; Hayat, Tasawar5; Wang, Xiangke1,6
2018-05-01
发表期刊ENVIRONMENTAL SCIENCE-NANO
卷号5期号:5页码:1140-1149
文章类型Article
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标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
关键词[WOS]HEAVY-METAL IONS ; TITANATE NANOTUBES ; SODIUM TITANATE ; ABSOLUTE ELECTRONEGATIVITY ; HIGHLY EFFICIENT ; RADIOACTIVE IONS ; AQUEOUS-SOLUTION ; WATER ; ADSORPTION ; NANOFIBERS
收录类别SCI
语种英语
WOS研究方向Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
WOS类目Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology
WOS记录号WOS:000432684200010
出版者ROYAL SOC CHEMISTRY
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6725
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
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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.
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