Hydrothermal synthesis of lithium-enriched beta-Li2TiO3 with an ion-sieve application: excellent lithium adsorption
Wang, Shulei1,2; Li, Ping1; Cui, Wenwen1,2; Zhang, Hailin1,2; Wang, Hongyan1; Zheng, Shili1; Zhang, Yi1
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:104页码:102608-102616
摘要

Lithium-enriched monoclinic lithium metatitanate (beta-Li2TiO3) with a high molar ratio of Li to Ti(2.11) was synthesized by a hydrothermal method. The related lithium ion-sieve (H2TiO3), obtained by acid pickling of Li2TiO3, with a specific surface area of 45.35 m(2) g(-1) and a pore volume of 0.166 cm(3) g(-1) possessed a maximum adsorption capacity of 76.7 mg g(-1) in LiOH solution (similar to 2 g L-1 of Li+ ions) at 30 degrees C for 24 h, which was much higher than those reported for other lithium ion-sieves. Adsorption isotherms and kinetic analysis indicated that the adsorption of Li+ ions onto H2TiO3 followed the Langmuir isotherm model and a pseudo-second order kinetics equation. The adsorption mechanism showed that the improvement of lithium adsorption capacity was closely related to the free hydrogen formation of beta-Li2TiO3 and HTi2 layer exposure of H2TiO3, suggesting a clear direction for designing the lithium ion-sieve with high performance.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra18018c
收录类别SCI
语种英语
关键词[WOS]MANGANESE OXIDE ; AQUEOUS-SOLUTIONS ; SURFACE-AREA ; RECOVERY ; REMOVAL ; LI1.6MN1.6O4 ; HYDROXIDE ; PHOSPHATE ; TITANATE ; KINETICS
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Nature Science Foundation of China(51574212 ; U1403195)
WOS记录号WOS:000387621700103
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21851
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
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Wang, Shulei,Li, Ping,Cui, Wenwen,et al. Hydrothermal synthesis of lithium-enriched beta-Li2TiO3 with an ion-sieve application: excellent lithium adsorption[J]. RSC ADVANCES,2016,6(104):102608-102616.
APA Wang, Shulei.,Li, Ping.,Cui, Wenwen.,Zhang, Hailin.,Wang, Hongyan.,...&Zhang, Yi.(2016).Hydrothermal synthesis of lithium-enriched beta-Li2TiO3 with an ion-sieve application: excellent lithium adsorption.RSC ADVANCES,6(104),102608-102616.
MLA Wang, Shulei,et al."Hydrothermal synthesis of lithium-enriched beta-Li2TiO3 with an ion-sieve application: excellent lithium adsorption".RSC ADVANCES 6.104(2016):102608-102616.
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