Layered A2Sn3S7·1.25H2O (A = Organic Cation) as Efficient Ion-Exchanger for Rare Earth Element Recovery

Autor: Ke-Zhao Du, Mercouri G. Kanatzidis, Xiao-Ying Huang, Xing Hui Qi, Yu Jie Gao, Mei-Ling Feng
Rok vydání: 2017
Předmět:
Zdroj: Journal of the American Chemical Society. 139:4314-4317
ISSN: 1520-5126
0002-7863
DOI: 10.1021/jacs.7b00565
Popis: Exploring new ion-exchangers for the recovery of rare earth elements (REEs) and recycling is worthwhile for the high-tech industry and an eco-friendly sustainable economy. The efficient enrichment of low concentration REE from complex aqueous solutions containing large excess of competitive ions is challenging. Here we present a chalcogenide example as a superior REE ion-exchanger efficiently removing them from very complex aqueous solutions, (Me2NH2)1.33(Me3NH)0.67 Sn3S7·1.25H2O (FJSM-SnS). The material exhibits fast and efficient ion exchange behavior with short equilibrium time ( 99%) at low concentrations. Moreover, after ion-exchange, the REE in corresponding exchanged products could be easily recovered by elution. FJSM-SnS has superior capacity ...
Databáze: OpenAIRE