Arsenic(V) removal using an amine-doped acrylic ion exchange fiber: Kinetic, equilibrium, and regeneration studies

Chang Gu Lee; Pedro J.J. Alvarez; Aram Nam; Seong Jik Park; Taegu Do; Ung Su Choi; Sang Hyup Lee

doi:10.1016/j.jhazmat.2016.12.003

Arsenic(V) removal using an amine-doped acrylic ion exchange fiber: Kinetic, equilibrium, and regeneration studies

Chang Gu Lee, Pedro J.J. Alvarez, Aram Nam, Seong Jik Park, Taegu Do, Ung Su Choi, Sang Hyup Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

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

146 Citations (Scopus)

Abstract

This study investigates As(V) removal from aqueous solutions using a novel amine-doped acrylic ion exchange fiber. The amine doping reaction was confirmed using FT-IR, and the surface of the fiber was characterized using FEG-SEM. The synthesis process was completed within 60 min using an AlCl₃·6H₂O catalyst at 100 °C, and the resulting in a fiber with an ion exchange capacity of 7.5 meq/g. The removal efficiency of the A-60 fiber was affected by the solution pH, and the efficiency was optimum at pH 3.04. As(V) adsorption on the fiber was rapid in the first 20 min and reached equilibrium in 60 min. As(V) removal followed pseudo-first-order kinetics, and the Redlich-Peterson adsorption isotherm model provided the best fit of the equilibrium data. The fiber has an As(V) adsorption capacity (q_e) of 205.32 ± 3.57 mg/g, which is considerably higher than literature values and commercial adsorbents. The removal efficiency of the fiber was above 83% of the initial value after nine regeneration cycles.

Original language	English
Pages (from-to)	223-229
Number of pages	7
Journal	Journal of hazardous materials
Volume	325
DOIs	https://doi.org/10.1016/j.jhazmat.2016.12.003
Publication status	Published - 2017 Mar 5

Keywords

Adsorption
Amine group
Arsenic removal
Ion exchange fiber
Regeneration

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2016.12.003

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title = "Arsenic(V) removal using an amine-doped acrylic ion exchange fiber: Kinetic, equilibrium, and regeneration studies",

abstract = "This study investigates As(V) removal from aqueous solutions using a novel amine-doped acrylic ion exchange fiber. The amine doping reaction was confirmed using FT-IR, and the surface of the fiber was characterized using FEG-SEM. The synthesis process was completed within 60 min using an AlCl3·6H2O catalyst at 100 °C, and the resulting in a fiber with an ion exchange capacity of 7.5 meq/g. The removal efficiency of the A-60 fiber was affected by the solution pH, and the efficiency was optimum at pH 3.04. As(V) adsorption on the fiber was rapid in the first 20 min and reached equilibrium in 60 min. As(V) removal followed pseudo-first-order kinetics, and the Redlich-Peterson adsorption isotherm model provided the best fit of the equilibrium data. The fiber has an As(V) adsorption capacity (qe) of 205.32 ± 3.57 mg/g, which is considerably higher than literature values and commercial adsorbents. The removal efficiency of the fiber was above 83% of the initial value after nine regeneration cycles.",

keywords = "Adsorption, Amine group, Arsenic removal, Ion exchange fiber, Regeneration",

author = "Lee, {Chang Gu} and Alvarez, {Pedro J.J.} and Aram Nam and Park, {Seong Jik} and Taegu Do and Choi, {Ung Su} and Lee, {Sang Hyup}",

note = "Funding Information: This research was supported by the NSF ERC on Nanotechnology-Enabled Water Treatment (EEC-1449500), Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant no. 2016R1A6A3A03012183), and the National Research Foundation of Korea Grant funded by the Korean Government(MSIP) (2016), University-Institute cooperation program. Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

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doi = "10.1016/j.jhazmat.2016.12.003",

language = "English",

volume = "325",

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journal = "Journal of Hazardous Materials",

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T2 - Kinetic, equilibrium, and regeneration studies

AU - Lee, Chang Gu

AU - Alvarez, Pedro J.J.

AU - Nam, Aram

AU - Park, Seong Jik

AU - Do, Taegu

AU - Choi, Ung Su

AU - Lee, Sang Hyup

N1 - Funding Information: This research was supported by the NSF ERC on Nanotechnology-Enabled Water Treatment (EEC-1449500), Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant no. 2016R1A6A3A03012183), and the National Research Foundation of Korea Grant funded by the Korean Government(MSIP) (2016), University-Institute cooperation program. Publisher Copyright: © 2016 Elsevier B.V.

PY - 2017/3/5

Y1 - 2017/3/5

N2 - This study investigates As(V) removal from aqueous solutions using a novel amine-doped acrylic ion exchange fiber. The amine doping reaction was confirmed using FT-IR, and the surface of the fiber was characterized using FEG-SEM. The synthesis process was completed within 60 min using an AlCl3·6H2O catalyst at 100 °C, and the resulting in a fiber with an ion exchange capacity of 7.5 meq/g. The removal efficiency of the A-60 fiber was affected by the solution pH, and the efficiency was optimum at pH 3.04. As(V) adsorption on the fiber was rapid in the first 20 min and reached equilibrium in 60 min. As(V) removal followed pseudo-first-order kinetics, and the Redlich-Peterson adsorption isotherm model provided the best fit of the equilibrium data. The fiber has an As(V) adsorption capacity (qe) of 205.32 ± 3.57 mg/g, which is considerably higher than literature values and commercial adsorbents. The removal efficiency of the fiber was above 83% of the initial value after nine regeneration cycles.

AB - This study investigates As(V) removal from aqueous solutions using a novel amine-doped acrylic ion exchange fiber. The amine doping reaction was confirmed using FT-IR, and the surface of the fiber was characterized using FEG-SEM. The synthesis process was completed within 60 min using an AlCl3·6H2O catalyst at 100 °C, and the resulting in a fiber with an ion exchange capacity of 7.5 meq/g. The removal efficiency of the A-60 fiber was affected by the solution pH, and the efficiency was optimum at pH 3.04. As(V) adsorption on the fiber was rapid in the first 20 min and reached equilibrium in 60 min. As(V) removal followed pseudo-first-order kinetics, and the Redlich-Peterson adsorption isotherm model provided the best fit of the equilibrium data. The fiber has an As(V) adsorption capacity (qe) of 205.32 ± 3.57 mg/g, which is considerably higher than literature values and commercial adsorbents. The removal efficiency of the fiber was above 83% of the initial value after nine regeneration cycles.

KW - Adsorption

KW - Amine group

KW - Arsenic removal

KW - Ion exchange fiber

KW - Regeneration

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AN - SCOPUS:85002790959

SN - 0304-3894

VL - 325

SP - 223

EP - 229

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Arsenic(V) removal using an amine-doped acrylic ion exchange fiber: Kinetic, equilibrium, and regeneration studies

Abstract

Keywords

ASJC Scopus subject areas

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