Highly efficient separation of Sc3+and Y3+in acid solution by a graphene oxide membrane with interlayer sieving

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外文摘要：Sc and Y are key rare earth elements and are widely used in lamp phosphors,lasers and high-performance alloys.However,highly efficient extraction and separation of Sc3+and Y3+is laborious,harmful,slow,and costly,strongly necessitating more efficient extraction and separation techniques.Here,we produced hydrated Sc3+-and hydrated Y3+-controlled graphene oxide(GO)membranes and find that both hydrated cations were completely self-rejected by the membrane.By combining this self-rejection effect of the larger hydrated Y3+-controlled GO membrane and the rapid passage of the membrane through the smaller hydrated Sc3+,we proposed a strategy to separate Sc3+and Y3+by using a hydrated Y3+-controlled GO membrane.The experimental results show that the permeation rate of Sc3+exceeds that of Y3+when the separation factor reaches 4.02,which can be attributed to the interlayer sieving effects of the GO membrane.Our finding illustrates the use of a forward osmosis process with a GO membrane for the efficient separation of Sc3+and Y3+by interlayer sieving,which provides a new effective and eco-friendly method for the separation of rare earth elements.

外文关键词：

Rare earthsGraphene oxide membraneInterlayer spacingMembrane separationForward osmosis

作者：

Huixiong Jiang、Jin-Hang Liu、Xiudong Chen、Xiaohua Cao、Xiushen Ye、Guosheng Shi

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作者单位：

School of Chemistry and Chemical Engineering,Jiangxi Province Engineering Research Center of Ecological Chemical Industry,Jiujiang University,Jiujiang,332005,China

Shanghai Applied Radiation Institute,State Key Lab.Advanced Special Steel,Shanghai University,Shanghai,200444,China

Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Science Fund for Outstanding Young ScholarsJiangxi Provincial Natural Science FoundationJiangxi Provincial Natural Science FoundationJiangxi Provincial Natural Science FoundationScience and Technology Project of Jiangxi Provincial Department of Education

项目编号：

U19321231210516622065017221630031172254820224BAB21401920232BAB20402420232BAB203024GJJ2201937

出版年：

2024

DOI：

10.1016/j.jre.2024.02.017

稀土学报(英文版)

中国稀土学会

稀土学报(英文版)

CSTPCDEI

影响因子：1.3

ISSN：1002-0721

年,卷(期)：2024.42(11)