Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures

Sun Jin; Liu Long; Zhao Xiaoliang; Yang Shuanglei; Komarneni Sridhar; Yang Dongjiang

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Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures

机译：使用具有层状和隧道结构的铌纳米材料从水中捕获放射性阳离子

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Niobates with one-dimensional (1D) morphology, layered KNb3O8 nanorods and tunnel structured Na2Nb2O6 center dot H2O nanofibers, are fabricated readily by a reaction between niobium oxide and alkali hydroxides under hydrothermal conditions. They exhibit ideal properties for removal of radioactive cations such as Sr2+, Ba2+ (as simulant for Ra-226(2+)) and Cs+ ions from wastewater through an ion exchange process. Compared with the Na2Nb2O6 center dot H2O nanofibers, the KNb3O8 nanorods displayed better performance for the irreversible entrapment of the toxic cations, particularly Ba2+ cations, due to the deformation of the layer structure. Besides, these 1D niobates are acid resistant with selective uptake of the radioactive cations in the presence of a large excess of K+ or Na+ ions.

机译：具有一维（1D）形态的铌酸盐，层状KNB3O8纳米棒和隧道结构的NA2NB2O6中心点H2O纳米纤维，通过在水热条件下的氧化铌和碱氢氧化物之间的反应容易地制备。它们表现出用于去除放射性阳离子的理想性质，例如Sr2 +，Ba2 +（作为Ra-226（2+）的模拟剂，通过离子交换过程从废水中的Cs +离子。与Na2NB2O6中心点H2O纳米纤维相比，由于层结构的变形，KNB3O8纳米峰对毒阳离子，特别是BA2 +阳离子的不可逆截留性能更好。此外，这些1D铌酸盐是耐酸性，在大量的K +或Na +离子存在下的放射性阳离子的选择性吸收。

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来源
《RSC Advances》 |2015年第92期|共6页
作者
Sun Jin; Liu Long; Zhao Xiaoliang; Yang Shuanglei; Komarneni Sridhar; Yang Dongjiang;
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作者单位

Qingdao Univ Coll Chem Chem &

Environm Engn Collaborat Innovat Ctr Marine Biomass Fibers Mat Qingdao 266071 Peoples R China;

Qingdao Univ Coll Chem Chem &

Environm Engn Collaborat Innovat Ctr Marine Biomass Fibers Mat Qingdao 266071 Peoples R China;

Qingdao Univ Coll Chem Chem &

Environm Engn Collaborat Innovat Ctr Marine Biomass Fibers Mat Qingdao 266071 Peoples R China;

Cent S Univ State Key Lab Powder Met Changsha 410083 Peoples R China;

Penn State Univ Mat Res Inst University Pk PA 16802 USA;

Qingdao Univ Coll Chem Chem &

Environm Engn Collaborat Innovat Ctr Marine Biomass Fibers Mat Qingdao 266071 Peoples R China;

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正文语种 eng
中图分类化学;
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1. Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures [J] . Sun Jin, Liu Long, Zhao Xiaoliang, RSC Advances . 2015,第92期

机译：使用具有层状和隧道结构的铌纳米材料从水中捕获放射性阳离子
2. Potassium Niobate Nanolamina: A Promising Adsorbent for Entrapment of Radioactive Cations from Water [J] . Jin Sun, Dongjiang Yang, Cuihua Sun, Scientific reports. . 2014,第1期

机译：铌酸钾纳米薄片：一种有希望的从水中捕获放射性阳离子的吸附剂
3. Potassium Niobate Nanolamina: A Promising Adsorbent for Entrapment of Radioactive Cations from Water [J] . Jin Sun, Dongjiang Yang, Cuihua Sun, Scientific reports. . 2014,第1期

机译：铌酸钾纳米薄片：一种有希望的从水中捕获放射性阳离子的吸附剂
4. Synthesis of New Protonic Compounds With Layered Structure Through Ion-exchange Reaction of The Photocatalyst Niobate KNb_3O_8 [C] . Nadia Belmokhtar, Ratiba Nedjar, Houria Rebbah World Renewable Energy Congress . 2008

机译：通过光催化剂Niobate Knb_3O_8的离子交换反应合成具有层状结构的新质子化合物
5. Transformation from layered to tunnel structures: Synthesis, characterization, and applications of manganese oxide octahedral molecular sieves. [D] . Xia, Guan-Guang. 2001

机译：从分层结构到隧道结构的转变：锰氧化物八面体分子筛的合成，表征和应用。
6. Potassium Niobate Nanolamina: A Promising Adsorbent for Entrapment of Radioactive Cations from Water [O] . Jin Sun, Dongjiang Yang, Cuihua Sun, -1

机译：铌酸钾纳米薄片：一种有希望的从水中截留放射性阳离子的吸附剂
7. Potassium Niobate Nanolamina: A Promising Adsorbent for Entrapment of Radioactive Cations from Water [O] . Sun Jin, Yang Dongjiang, Sun Cuihua, 2014

机译：铌酸钾纳米薄片：一种有希望的从水中捕获放射性阳离子的吸附剂

Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures

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