Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants

Porous LiAl-layered double hydroxides (LiAl-LDHs) of [Li2Al4(OH)12](CO3)·4H2O were hydrothermally synthesized in one-pot by mixing LiCl, AlCl3, urea, and one surfactant each (sodium dodecyl sulfate (SDS), octadecyl amine (OA), and sodium lauryl sulfonate (SLS)) as soft templates. The LiAl-LDHs were...

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Main Authors: Mingzhe Dong, Qinglong Luo, Jun Li, Zhijian Wu, Zhong Liu
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Journal of Saudi Chemical Society
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S131961032200117X
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author Mingzhe Dong
Qinglong Luo
Jun Li
Zhijian Wu
Zhong Liu
author_facet Mingzhe Dong
Qinglong Luo
Jun Li
Zhijian Wu
Zhong Liu
author_sort Mingzhe Dong
collection DOAJ
description Porous LiAl-layered double hydroxides (LiAl-LDHs) of [Li2Al4(OH)12](CO3)·4H2O were hydrothermally synthesized in one-pot by mixing LiCl, AlCl3, urea, and one surfactant each (sodium dodecyl sulfate (SDS), octadecyl amine (OA), and sodium lauryl sulfonate (SLS)) as soft templates. The LiAl-LDHs were granulated by crosslinked sodium alginate. The LiAl-LDHs were characterized by Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and porosity. Special attention was focused on the rise of Li+ adsorption capacity based on the porous morphology in synthetic and real salt lake brine. The adsorption capacity of granulated LiAl-LDHs-SLS reaches 8.48 mg/g in a solution containing 300 mg/L of Li+ at pH = 7 and 11.8 mg/g from Da Qaidam brine with 1.0 g/L of Li+. Lithium adsorption followed the Langmuir isotherm and pseudo-second-order kinetics. Temperature, solution pH, and other electrolytes had a minor effect on the adsorption performance of porous LiAl-LDHs. The structure of surfactants had a significant influence on the porosity of synthesized LiAl-LDHs, and thus on the adsorption capacity.
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spelling doaj.art-ea525aa025644204b5c4670c92169c352022-12-22T03:17:01ZengElsevierJournal of Saudi Chemical Society1319-61032022-09-01265101535Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactantsMingzhe Dong0Qinglong Luo1Jun Li2Zhijian Wu3Zhong Liu4Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources and Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR ChinaKey Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources and Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR ChinaCorresponding author.; Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources and Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR ChinaKey Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources and Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR ChinaKey Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources and Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR ChinaPorous LiAl-layered double hydroxides (LiAl-LDHs) of [Li2Al4(OH)12](CO3)·4H2O were hydrothermally synthesized in one-pot by mixing LiCl, AlCl3, urea, and one surfactant each (sodium dodecyl sulfate (SDS), octadecyl amine (OA), and sodium lauryl sulfonate (SLS)) as soft templates. The LiAl-LDHs were granulated by crosslinked sodium alginate. The LiAl-LDHs were characterized by Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and porosity. Special attention was focused on the rise of Li+ adsorption capacity based on the porous morphology in synthetic and real salt lake brine. The adsorption capacity of granulated LiAl-LDHs-SLS reaches 8.48 mg/g in a solution containing 300 mg/L of Li+ at pH = 7 and 11.8 mg/g from Da Qaidam brine with 1.0 g/L of Li+. Lithium adsorption followed the Langmuir isotherm and pseudo-second-order kinetics. Temperature, solution pH, and other electrolytes had a minor effect on the adsorption performance of porous LiAl-LDHs. The structure of surfactants had a significant influence on the porosity of synthesized LiAl-LDHs, and thus on the adsorption capacity.http://www.sciencedirect.com/science/article/pii/S131961032200117XLiAl-layered double hydroxidePorosityLithium adsorptionSurfactants
spellingShingle Mingzhe Dong
Qinglong Luo
Jun Li
Zhijian Wu
Zhong Liu
Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants
Journal of Saudi Chemical Society
LiAl-layered double hydroxide
Porosity
Lithium adsorption
Surfactants
title Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants
title_full Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants
title_fullStr Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants
title_full_unstemmed Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants
title_short Lithium adsorption properties of porous LiAl-layered double hydroxides synthesized using surfactants
title_sort lithium adsorption properties of porous lial layered double hydroxides synthesized using surfactants
topic LiAl-layered double hydroxide
Porosity
Lithium adsorption
Surfactants
url http://www.sciencedirect.com/science/article/pii/S131961032200117X
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AT qinglongluo lithiumadsorptionpropertiesofporousliallayereddoublehydroxidessynthesizedusingsurfactants
AT junli lithiumadsorptionpropertiesofporousliallayereddoublehydroxidessynthesizedusingsurfactants
AT zhijianwu lithiumadsorptionpropertiesofporousliallayereddoublehydroxidessynthesizedusingsurfactants
AT zhongliu lithiumadsorptionpropertiesofporousliallayereddoublehydroxidessynthesizedusingsurfactants