Recovery of Lithium Ions from Seawater Using a Continuous Flow Adsorption Column Packed with Granulated Chitosan-Lithium Manganese Oxide

Taegong Ryu; Yuvaraj Haldorai; Arunkumar Rengaraj; Junho Shin; Hye Jin Hong; Go Woon Lee; Young Kyu Han; Yun Suk Huh; Kang Sup Chung

doi:10.1021/acs.iecr.6b01632

Recovery of Lithium Ions from Seawater Using a Continuous Flow Adsorption Column Packed with Granulated Chitosan-Lithium Manganese Oxide

Taegong Ryu
, Yuvaraj Haldorai
, Arunkumar Rengaraj
, Junho Shin
, Hye Jin Hong
, Go Woon Lee
, Young Kyu Han
, Yun Suk Huh
, Kang Sup Chung

Department of Energy and Materials Engineering

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

96 Scopus citations

Abstract

We demonstrated an efficient recovery of lithium ions (Li⁺) from seawater using a continuous flow column packed with an adsorbent, chitosan-lithium manganese oxide (LMO). The effects of Li⁺ concentration, contact time, and recyclability were investigated. The adsorbent showed good removal efficiency of Li⁺ from seawater. The maximum adsorption capacity was calculated to be 54.65 mg/g. The adsorption process fit well with the Freundlich isotherm with a correlation coefficient of 0.9924. Kinetics studies showed that the adsorption process was consistent with the pseudo-second-order model. The recyclability was tested after extraction of Li⁺ from the adsorbent using sulfuric acid. The adsorption capacity decreased slightly after recycling the adsorbent three times. This may be due to the dissolution of Mn²⁺ and deformation of the chitosan structure. A study of the selectivity of Li⁺ in seawater showed that the selectivity increased in the order Li⁺ > Mg²⁺ > Na⁺.

Original language	English
Pages (from-to)	7218-7225
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	55
Issue number	26
DOIs	https://doi.org/10.1021/acs.iecr.6b01632
State	Published - 6 Jul 2016

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title = "Recovery of Lithium Ions from Seawater Using a Continuous Flow Adsorption Column Packed with Granulated Chitosan-Lithium Manganese Oxide",

abstract = "We demonstrated an efficient recovery of lithium ions (Li+) from seawater using a continuous flow column packed with an adsorbent, chitosan-lithium manganese oxide (LMO). The effects of Li+ concentration, contact time, and recyclability were investigated. The adsorbent showed good removal efficiency of Li+ from seawater. The maximum adsorption capacity was calculated to be 54.65 mg/g. The adsorption process fit well with the Freundlich isotherm with a correlation coefficient of 0.9924. Kinetics studies showed that the adsorption process was consistent with the pseudo-second-order model. The recyclability was tested after extraction of Li+ from the adsorbent using sulfuric acid. The adsorption capacity decreased slightly after recycling the adsorbent three times. This may be due to the dissolution of Mn2+ and deformation of the chitosan structure. A study of the selectivity of Li+ in seawater showed that the selectivity increased in the order Li+ > Mg2+ > Na+.",

author = "Taegong Ryu and Yuvaraj Haldorai and Arunkumar Rengaraj and Junho Shin and Hong, \{Hye Jin\} and Lee, \{Go Woon\} and Han, \{Young Kyu\} and Huh, \{Yun Suk\} and Chung, \{Kang Sup\}",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = jul,

day = "6",

doi = "10.1021/acs.iecr.6b01632",

language = "English",

volume = "55",

pages = "7218--7225",

journal = "Industrial and Engineering Chemistry Research",

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TY - JOUR

T1 - Recovery of Lithium Ions from Seawater Using a Continuous Flow Adsorption Column Packed with Granulated Chitosan-Lithium Manganese Oxide

AU - Ryu, Taegong

AU - Haldorai, Yuvaraj

AU - Rengaraj, Arunkumar

AU - Shin, Junho

AU - Hong, Hye Jin

AU - Lee, Go Woon

AU - Han, Young Kyu

AU - Huh, Yun Suk

AU - Chung, Kang Sup

PY - 2016/7/6

Y1 - 2016/7/6

N2 - We demonstrated an efficient recovery of lithium ions (Li+) from seawater using a continuous flow column packed with an adsorbent, chitosan-lithium manganese oxide (LMO). The effects of Li+ concentration, contact time, and recyclability were investigated. The adsorbent showed good removal efficiency of Li+ from seawater. The maximum adsorption capacity was calculated to be 54.65 mg/g. The adsorption process fit well with the Freundlich isotherm with a correlation coefficient of 0.9924. Kinetics studies showed that the adsorption process was consistent with the pseudo-second-order model. The recyclability was tested after extraction of Li+ from the adsorbent using sulfuric acid. The adsorption capacity decreased slightly after recycling the adsorbent three times. This may be due to the dissolution of Mn2+ and deformation of the chitosan structure. A study of the selectivity of Li+ in seawater showed that the selectivity increased in the order Li+ > Mg2+ > Na+.

AB - We demonstrated an efficient recovery of lithium ions (Li+) from seawater using a continuous flow column packed with an adsorbent, chitosan-lithium manganese oxide (LMO). The effects of Li+ concentration, contact time, and recyclability were investigated. The adsorbent showed good removal efficiency of Li+ from seawater. The maximum adsorption capacity was calculated to be 54.65 mg/g. The adsorption process fit well with the Freundlich isotherm with a correlation coefficient of 0.9924. Kinetics studies showed that the adsorption process was consistent with the pseudo-second-order model. The recyclability was tested after extraction of Li+ from the adsorbent using sulfuric acid. The adsorption capacity decreased slightly after recycling the adsorbent three times. This may be due to the dissolution of Mn2+ and deformation of the chitosan structure. A study of the selectivity of Li+ in seawater showed that the selectivity increased in the order Li+ > Mg2+ > Na+.

UR - https://www.scopus.com/pages/publications/84978036262

U2 - 10.1021/acs.iecr.6b01632

DO - 10.1021/acs.iecr.6b01632

M3 - Article

AN - SCOPUS:84978036262

SN - 0888-5885

VL - 55

SP - 7218

EP - 7225

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 26

ER -

Recovery of Lithium Ions from Seawater Using a Continuous Flow Adsorption Column Packed with Granulated Chitosan-Lithium Manganese Oxide

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