文献类型：期刊文献

英文题名：Nanostructure ion-sieves for lithium adsorption

作者：Zhang, Qin-Hui[1];Li, Shao-Peng[1];Sun, Shu-Ying[1];Yin, Xian-Sheng[1];Yu, Jian-Guo[1]

机构：[1]E China Univ Sci & Technol, Coll Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2007

卷号：5

外文期刊名：INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING

收录：;EI(收录号：20080311020842);WOS:【SCI-EXPANDED(收录号:WOS:000252010200003)】；

语种：英文

外文关键词：adsorption; lithium; nanostructure; oxide; separation

摘要：This paper highlights our recent work on preparation and characterization of nanostructure transition metal (Me) oxide (Me = Mn, Ti and Zr) ion-sieves. The controlled hydrothermal and Sol-Gel method have been developed in the synthesis of ion-sieves by the acid treatment of Li-Me-O tri-oxide precursors. The structure characteristic and ion-exchange property are studied by XRD, TEM, nitrogen adsorption-desorption analysis, lithium ion adsorptive isotherm and kinetics measurement. The result shows that these transition metal oxide ion-sieves, promising in the lithium extraction from brine or seawater, have good selectivity and remarkable adsorption capacity for lithium ions. The maximum adsorption capacity of manganese dioxide and titania by now is 3.47 and 4.02 mmol/g, respectively. The adsorption capacity of zirconia ion-sieve is only 0.675 mmol/g. To the best of our knowledge there is no other report on zirconia with the lithium adsorption property up-to-date.