Preparation and adsorption performance of multi-morphology H1.6Mn1.6O4 for lithium extraction

Xiulei Li; Baifu Tao; Qingyuan Jia; Ruili Guo

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Preparation and adsorption performance of multi-morphology H_1.6Mn_1.6O₄ for lithium extraction

Separation Science and Engineering | Updated：2026-01-06

- Preparation and adsorption performance of multi-morphology H_1.6Mn_1.6O₄ for lithium extraction
- Chinese Journal of Chemical Engineering Vol. 34, Issue 6, Pages: 68-76(2021)
- Affiliations：
  
  Chemistry and Chemical Engineering, Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University,Shihezi,China,832003
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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摘要

Abstract

In this paper

a lithium-ion sieve (LIS) with different morphologies

such as rod-like (LIS-R)

spherical (LIS-S)

flower-like (LIS-F)

and three-dimensional macroporous-mesoporous (LIS-3D)

was prepared by hydrothermal synthesis

solid reaction

and hard-template synthesis. The results showed that the LIS with different morphologies presented great differences in specific surface area

pore volume

adsorption selectivity

and structure stability. LIS-3D with highest specific surface area and pore volume displayed the maximum adsorption capacity and adsorption rate

but the stability of LIS-3D was poor because of the manganese dissolution. By comparison

LIS-S has the best structural stability while maintaining a satisfactory adsorption capacity (35.02 mg·g

-1

) and adsorption rate. The LIS-S remained about 90% of the original adsorption capacity after five cycles of adsorption-desorption process. In addition

in the simulated brine system (the magnesium to lithium ratio of 400)

the LIS-S exhibited the highest selectivity (

) of 425.14. In sum

the LIS-S with good morphology is a potential adsorbent for lithium extractio

n from brine.

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