Mechanochemical synthesis of silica-lithium manganese oxide composite for the efficient recovery of lithium ions from seawater

Taegong Ryu; Arunkumar Rengaraj; Yuvaraj Haldorai; Junho Shin; Sang Rak Choe; Go Woon Lee; Seung Kyu Hwang; Young Kyu Han; Byoung Gyu Kim; Yun Suk Huh; Kang Sup Chung

doi:10.1016/j.ssi.2017.05.020

Mechanochemical synthesis of silica-lithium manganese oxide composite for the efficient recovery of lithium ions from seawater

Taegong Ryu, Arunkumar Rengaraj, Yuvaraj Haldorai, Junho Shin, Sang Rak Choe, Go Woon Lee, Seung Kyu Hwang, Young Kyu Han, Byoung Gyu Kim, Yun Suk Huh, Kang Sup Chung

Department of Energy and Materials Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

In this study, to prevent manganese dissolution from an acid treatment during the extraction of lithium ions (Li⁺), silica (SiO₂) was mixed mechanically with lithium manganese oxide (Li_1.33Mn_1.67O₄, LMO) by a high-energy milling technique followed by calcination. The milling process ensured high-level chemical homogeneity of metal oxides. The amorphous SiO₂ imparted stability to the LMO spinel structure and reduced the level of Mn dissolution during the extraction of Li⁺ using an acid. X-ray diffraction and thermogravimetric analysis confirmed that the amorphous SiO₂ was well mixed in the framework of LMO. The Li-Si-Mn-O composite was used as an efficient adsorbent for the recovery of Li⁺ from lithium spiked seawater with an adsorption capacity of 43.23 mg g^{− 1}. The adsorption process fitted the Langmuir isotherm well with a correlation coefficient of 0.9831. The kinetic study showed that the adsorption behavior followed pseudo-second-order kinetics. The adsorbent exhibited excellent selectivity towards Li⁺, even in the presence of competitive cations with a higher concentration than Li⁺.

Original language	English
Pages (from-to)	77-83
Number of pages	7
Journal	Solid State Ionics
Volume	308
DOIs	https://doi.org/10.1016/j.ssi.2017.05.020
State	Published - 1 Oct 2017

Keywords

High-energy milling technique
Lithium manganese oxide
Lithium recovery
Mn dissolution
Silica

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title = "Mechanochemical synthesis of silica-lithium manganese oxide composite for the efficient recovery of lithium ions from seawater",

abstract = "In this study, to prevent manganese dissolution from an acid treatment during the extraction of lithium ions (Li+), silica (SiO2) was mixed mechanically with lithium manganese oxide (Li1.33Mn1.67O4, LMO) by a high-energy milling technique followed by calcination. The milling process ensured high-level chemical homogeneity of metal oxides. The amorphous SiO2 imparted stability to the LMO spinel structure and reduced the level of Mn dissolution during the extraction of Li+ using an acid. X-ray diffraction and thermogravimetric analysis confirmed that the amorphous SiO2 was well mixed in the framework of LMO. The Li-Si-Mn-O composite was used as an efficient adsorbent for the recovery of Li+ from lithium spiked seawater with an adsorption capacity of 43.23 mg g− 1. The adsorption process fitted the Langmuir isotherm well with a correlation coefficient of 0.9831. The kinetic study showed that the adsorption behavior followed pseudo-second-order kinetics. The adsorbent exhibited excellent selectivity towards Li+, even in the presence of competitive cations with a higher concentration than Li+.",

keywords = "High-energy milling technique, Lithium manganese oxide, Lithium recovery, Mn dissolution, Silica",

author = "Taegong Ryu and Arunkumar Rengaraj and Yuvaraj Haldorai and Junho Shin and Choe, {Sang Rak} and Lee, {Go Woon} and Hwang, {Seung Kyu} and Han, {Young Kyu} and Kim, {Byoung Gyu} and Huh, {Yun Suk} and Chung, {Kang Sup}",

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year = "2017",

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day = "1",

doi = "10.1016/j.ssi.2017.05.020",

language = "English",

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T1 - Mechanochemical synthesis of silica-lithium manganese oxide composite for the efficient recovery of lithium ions from seawater

AU - Ryu, Taegong

AU - Rengaraj, Arunkumar

AU - Haldorai, Yuvaraj

AU - Shin, Junho

AU - Choe, Sang Rak

AU - Lee, Go Woon

AU - Hwang, Seung Kyu

AU - Han, Young Kyu

AU - Kim, Byoung Gyu

AU - Huh, Yun Suk

AU - Chung, Kang Sup

PY - 2017/10/1

Y1 - 2017/10/1

N2 - In this study, to prevent manganese dissolution from an acid treatment during the extraction of lithium ions (Li+), silica (SiO2) was mixed mechanically with lithium manganese oxide (Li1.33Mn1.67O4, LMO) by a high-energy milling technique followed by calcination. The milling process ensured high-level chemical homogeneity of metal oxides. The amorphous SiO2 imparted stability to the LMO spinel structure and reduced the level of Mn dissolution during the extraction of Li+ using an acid. X-ray diffraction and thermogravimetric analysis confirmed that the amorphous SiO2 was well mixed in the framework of LMO. The Li-Si-Mn-O composite was used as an efficient adsorbent for the recovery of Li+ from lithium spiked seawater with an adsorption capacity of 43.23 mg g− 1. The adsorption process fitted the Langmuir isotherm well with a correlation coefficient of 0.9831. The kinetic study showed that the adsorption behavior followed pseudo-second-order kinetics. The adsorbent exhibited excellent selectivity towards Li+, even in the presence of competitive cations with a higher concentration than Li+.

AB - In this study, to prevent manganese dissolution from an acid treatment during the extraction of lithium ions (Li+), silica (SiO2) was mixed mechanically with lithium manganese oxide (Li1.33Mn1.67O4, LMO) by a high-energy milling technique followed by calcination. The milling process ensured high-level chemical homogeneity of metal oxides. The amorphous SiO2 imparted stability to the LMO spinel structure and reduced the level of Mn dissolution during the extraction of Li+ using an acid. X-ray diffraction and thermogravimetric analysis confirmed that the amorphous SiO2 was well mixed in the framework of LMO. The Li-Si-Mn-O composite was used as an efficient adsorbent for the recovery of Li+ from lithium spiked seawater with an adsorption capacity of 43.23 mg g− 1. The adsorption process fitted the Langmuir isotherm well with a correlation coefficient of 0.9831. The kinetic study showed that the adsorption behavior followed pseudo-second-order kinetics. The adsorbent exhibited excellent selectivity towards Li+, even in the presence of competitive cations with a higher concentration than Li+.

KW - High-energy milling technique

KW - Lithium manganese oxide

KW - Lithium recovery

KW - Mn dissolution

KW - Silica

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U2 - 10.1016/j.ssi.2017.05.020

DO - 10.1016/j.ssi.2017.05.020

M3 - Article

AN - SCOPUS:85020714426

SN - 0167-2738

VL - 308

SP - 77

EP - 83

JO - Solid State Ionics

JF - Solid State Ionics

ER -

Mechanochemical synthesis of silica-lithium manganese oxide composite for the efficient recovery of lithium ions from seawater

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