Sb(III) removal from aqueous solution by a novel nano-modified chitosan (NMCS)

Nana Xiong, Peng Wan, Guocheng Zhu*, Fubing Xie, Shengnan Xu, Chuanqu Zhu, Andrew S. Hursthouse

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A series of environmental and health problems caused by the release of large quantities of antimony into the water environment have received wide social concern in a number of regions worldwide. Finding a feasible treatment technology is the best choice for the sustainable remediation of antimony pollution. A novel nano-modified chitosan (NMCS) was prepared by grafting iron oxide nanoparticles (Nano-Fe3O4) and carboxylate metal organic frameworks (MOFs) denoted as MIL-100(Fe) onto chitosan. The NMCS before and after adsorption was characterized by analytical tools including Fourier transform infrared and X-ray photoelectron spectroscopy. Batch experiments with variable NMCS dose, solution pH, and competing anions were used to evaluate the most efficient way to remove Sb (III) from aqueous solutions. The results showed that removal efficiency increased with the increase of the NMCS concentration and solution pH, respectively. The maximum removal efficiency of Sb(III) was 96.8%, at pH 11 with 1.5 g/L of NMCS when treating a Sb(III) model solution of 10 mg/L, which is much higher than that with Nano-Fe3O4 or MOFs. Compared with the efficient removal of Sb(III) under acid conditions, NMCS has a higher removal efficiency under alkaline conditions. The effect of common anions such as sulfate, carbonate, nitrate and chloride ions, on the removal of Sb(III), was minor. The removal of Sb(III) could be clearly described by pseudo-second order sorption kinetics and Freundlich isotherm, which suggested inner-sphere surface binding mechanisms. The presence of Sb (III) on NMCS was confirmed by an X-ray photoelectron spectroscopic analysis, and those functional groups binding to Sb (III) were identified using Fourier transform infrared analysis. The ability of NMCS to be regenerated was good and further enhanced by the possibility of magnetic recovery. Overall, the findings tested in this study showed that the NMCS developed can effectively remove Sb(III) from aqueous solutions and can be effectively recovered and reused.
Original languageEnglish
Article number116266
JournalSeparation & Purification Technology
Volume236
Early online date28 Oct 2019
DOIs
Publication statusE-pub ahead of print - 28 Oct 2019

Fingerprint

Chitosan
aqueous solution
antimony
Fourier transform
anion
Antimony
metal
Anions
Fourier transforms
Negative ions
iron oxide
X-ray spectroscopy
functional group
Metals
removal
isotherm
Infrared radiation
remediation
sorption
chloride

Keywords

  • Water
  • Antimony
  • Chitosan
  • Magnetic nanoparticle
  • Metal organic framework

Cite this

Xiong, Nana ; Wan, Peng ; Zhu, Guocheng ; Xie, Fubing ; Xu, Shengnan ; Zhu, Chuanqu ; Hursthouse, Andrew S. / Sb(III) removal from aqueous solution by a novel nano-modified chitosan (NMCS). In: Separation & Purification Technology. 2019 ; Vol. 236.
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title = "Sb(III) removal from aqueous solution by a novel nano-modified chitosan (NMCS)",
abstract = "A series of environmental and health problems caused by the release of large quantities of antimony into the water environment have received wide social concern in a number of regions worldwide. Finding a feasible treatment technology is the best choice for the sustainable remediation of antimony pollution. A novel nano-modified chitosan (NMCS) was prepared by grafting iron oxide nanoparticles (Nano-Fe3O4) and carboxylate metal organic frameworks (MOFs) denoted as MIL-100(Fe) onto chitosan. The NMCS before and after adsorption was characterized by analytical tools including Fourier transform infrared and X-ray photoelectron spectroscopy. Batch experiments with variable NMCS dose, solution pH, and competing anions were used to evaluate the most efficient way to remove Sb (III) from aqueous solutions. The results showed that removal efficiency increased with the increase of the NMCS concentration and solution pH, respectively. The maximum removal efficiency of Sb(III) was 96.8{\%}, at pH 11 with 1.5 g/L of NMCS when treating a Sb(III) model solution of 10 mg/L, which is much higher than that with Nano-Fe3O4 or MOFs. Compared with the efficient removal of Sb(III) under acid conditions, NMCS has a higher removal efficiency under alkaline conditions. The effect of common anions such as sulfate, carbonate, nitrate and chloride ions, on the removal of Sb(III), was minor. The removal of Sb(III) could be clearly described by pseudo-second order sorption kinetics and Freundlich isotherm, which suggested inner-sphere surface binding mechanisms. The presence of Sb (III) on NMCS was confirmed by an X-ray photoelectron spectroscopic analysis, and those functional groups binding to Sb (III) were identified using Fourier transform infrared analysis. The ability of NMCS to be regenerated was good and further enhanced by the possibility of magnetic recovery. Overall, the findings tested in this study showed that the NMCS developed can effectively remove Sb(III) from aqueous solutions and can be effectively recovered and reused.",
keywords = "Water, Antimony, Chitosan, Magnetic nanoparticle, Metal organic framework",
author = "Nana Xiong and Peng Wan and Guocheng Zhu and Fubing Xie and Shengnan Xu and Chuanqu Zhu and Hursthouse, {Andrew S.}",
year = "2019",
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Sb(III) removal from aqueous solution by a novel nano-modified chitosan (NMCS). / Xiong, Nana; Wan, Peng; Zhu, Guocheng; Xie, Fubing; Xu, Shengnan; Zhu, Chuanqu; Hursthouse, Andrew S.

In: Separation & Purification Technology, Vol. 236, 116266, 28.10.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sb(III) removal from aqueous solution by a novel nano-modified chitosan (NMCS)

AU - Xiong, Nana

AU - Wan, Peng

AU - Zhu, Guocheng

AU - Xie, Fubing

AU - Xu, Shengnan

AU - Zhu, Chuanqu

AU - Hursthouse, Andrew S.

PY - 2019/10/28

Y1 - 2019/10/28

N2 - A series of environmental and health problems caused by the release of large quantities of antimony into the water environment have received wide social concern in a number of regions worldwide. Finding a feasible treatment technology is the best choice for the sustainable remediation of antimony pollution. A novel nano-modified chitosan (NMCS) was prepared by grafting iron oxide nanoparticles (Nano-Fe3O4) and carboxylate metal organic frameworks (MOFs) denoted as MIL-100(Fe) onto chitosan. The NMCS before and after adsorption was characterized by analytical tools including Fourier transform infrared and X-ray photoelectron spectroscopy. Batch experiments with variable NMCS dose, solution pH, and competing anions were used to evaluate the most efficient way to remove Sb (III) from aqueous solutions. The results showed that removal efficiency increased with the increase of the NMCS concentration and solution pH, respectively. The maximum removal efficiency of Sb(III) was 96.8%, at pH 11 with 1.5 g/L of NMCS when treating a Sb(III) model solution of 10 mg/L, which is much higher than that with Nano-Fe3O4 or MOFs. Compared with the efficient removal of Sb(III) under acid conditions, NMCS has a higher removal efficiency under alkaline conditions. The effect of common anions such as sulfate, carbonate, nitrate and chloride ions, on the removal of Sb(III), was minor. The removal of Sb(III) could be clearly described by pseudo-second order sorption kinetics and Freundlich isotherm, which suggested inner-sphere surface binding mechanisms. The presence of Sb (III) on NMCS was confirmed by an X-ray photoelectron spectroscopic analysis, and those functional groups binding to Sb (III) were identified using Fourier transform infrared analysis. The ability of NMCS to be regenerated was good and further enhanced by the possibility of magnetic recovery. Overall, the findings tested in this study showed that the NMCS developed can effectively remove Sb(III) from aqueous solutions and can be effectively recovered and reused.

AB - A series of environmental and health problems caused by the release of large quantities of antimony into the water environment have received wide social concern in a number of regions worldwide. Finding a feasible treatment technology is the best choice for the sustainable remediation of antimony pollution. A novel nano-modified chitosan (NMCS) was prepared by grafting iron oxide nanoparticles (Nano-Fe3O4) and carboxylate metal organic frameworks (MOFs) denoted as MIL-100(Fe) onto chitosan. The NMCS before and after adsorption was characterized by analytical tools including Fourier transform infrared and X-ray photoelectron spectroscopy. Batch experiments with variable NMCS dose, solution pH, and competing anions were used to evaluate the most efficient way to remove Sb (III) from aqueous solutions. The results showed that removal efficiency increased with the increase of the NMCS concentration and solution pH, respectively. The maximum removal efficiency of Sb(III) was 96.8%, at pH 11 with 1.5 g/L of NMCS when treating a Sb(III) model solution of 10 mg/L, which is much higher than that with Nano-Fe3O4 or MOFs. Compared with the efficient removal of Sb(III) under acid conditions, NMCS has a higher removal efficiency under alkaline conditions. The effect of common anions such as sulfate, carbonate, nitrate and chloride ions, on the removal of Sb(III), was minor. The removal of Sb(III) could be clearly described by pseudo-second order sorption kinetics and Freundlich isotherm, which suggested inner-sphere surface binding mechanisms. The presence of Sb (III) on NMCS was confirmed by an X-ray photoelectron spectroscopic analysis, and those functional groups binding to Sb (III) were identified using Fourier transform infrared analysis. The ability of NMCS to be regenerated was good and further enhanced by the possibility of magnetic recovery. Overall, the findings tested in this study showed that the NMCS developed can effectively remove Sb(III) from aqueous solutions and can be effectively recovered and reused.

KW - Water

KW - Antimony

KW - Chitosan

KW - Magnetic nanoparticle

KW - Metal organic framework

U2 - 10.1016/j.seppur.2019.116266

DO - 10.1016/j.seppur.2019.116266

M3 - Article

VL - 236

JO - Separation & Purification Technology

JF - Separation & Purification Technology

SN - 1383-5866

M1 - 116266

ER -