Well-defined functional mesoporous silica/polymer hybrids prepared by an ICAR ATRP technique integrated with bio-inspired polydopamine chemistry for lithium isotope separation

Abstract Both lithium-6 and lithium-7 with high abundance are indispensable materials in nuclear industry. Here, an aqueous solution│organic solution│aqueous solution system was fabricated to separate lithium isotopes. The effects of species and concentration of electrolytes in the electrode solutions on the lithium ions migration and lithium isotope separation with different voltages and migration time was studied. It was found that lithium-7 was enriched in aqueous solutions on both sides at 0 V and 2 V, while lithium-7 was enriched in anode solution and lithium-6 was enriched in cathode solution at 16 V. The weakening stability of the chelate consisted of crown ether and lithium ion with increasing voltage was believed to the possible reason. Meanwhile, the variation of electrolyte in electrode solution led to notable changes in migration ratio of lithium ions and lithium isotope separation effect, which can be attributed to the different degree of both ionization and hydrolysis for various electrolytes in aqueous solutions and the different ability of H+ and NH4+ to replace Li+ of chelate in organic solutions. This work is of great significance for the selection of electrode solutions in electromigration separation of lithium isotopes and even other electrochemical systems.

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Lithium Isotope Separation by 12-Metallacrown-3 Complexes

Zeitschrift für anorganische und allgemeine Chemie ◽

10.1002/zaac.200600366 ◽

2007 ◽

Vol 633 (5-6) ◽

pp. 858-864 ◽

Cited By ~ 14

Author(s):

Zacharias Grote ◽

Hans-Dieter Wizemann ◽

Rosario Scopelliti ◽

Kay Severin

Keyword(s):

Isotope Separation ◽

Lithium Isotope

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Green and efficient extraction strategy to lithium isotope separation with double ionic liquids as the medium and ionic associated agent

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-012-2251-7 ◽

2012 ◽

Vol 295 (3) ◽

pp. 2103-2110 ◽

Cited By ~ 17

Author(s):

Xu Jingjing ◽

Li Zaijun ◽

Gu Zhiguo ◽

Wang Guangli ◽

Liu Junkang

Keyword(s):

Ionic Liquids ◽

Isotope Separation ◽

Lithium Isotope ◽

Efficient Extraction

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Uranium Isotopes Separation Technique

International Letters of Chemistry Physics and Astronomy ◽

10.18052/www.scipress.com/ilcpa.56.37 ◽

2015 ◽

Vol 56 ◽

pp. 37-46

Author(s):

Iman Tarik Al-Alawy ◽

Raghad Saadoon Mohammed ◽

Mohammed Zorah Hassan ◽

Waleed Jabar Mhanah

Keyword(s):

Simple Model ◽

Objective Function ◽

Isotope Separation ◽

Separation Technique ◽

Optimization Process ◽

Uranium Isotopes ◽

Physical Processes ◽

Ion Extraction ◽

Laser Isotope Separation ◽

Isotopes Separation

This work describes the atomic laser isotope separation (LIS). The (LIS) plant means calculating the values of a large number of parameters in order to optimize some objective function. Here we use simple model to describe the elementary physical processes: evaporation, vapor expansion, interaction between photons and atoms, ion extraction etc...concentrated on theoretical and empirical bases. An optimization process for the separation of Uranium isotopes is described and discussed.

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