Performances and behavior of a water-soluble and pH-sensitive polycarboxybetaine used for metal ion recovery

Julia Mouton*, Gunvor Marie Kirkelund, Yousra Hassen, Simon Chastagnol, Hélène Van den Berghe, Jean Coudane, Mireille Turmine

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Zwiterionic functional groups give polycarboxybetaines a great ability to chelate copper and their use for metal ions recovery was suggested in previous studies. The use of a water-soluble and pH-sensitive polymer (polycarboxy-ethyl-3-aminocrotonate - PCEAC) was investigated for the removal of copper from aqueous solution. The equilibrium adsorption level was determined as a function of temperature, pH and initial adsorbate concentration. The good fit to the Langmuir model offered various information about copper uptake mechanisms. The maximal adsorption capacities were found to reach 253 ± 11 mg of copper per g of PCEAC at pH = 6. The thermodynamic parameters such as free energy, enthalpy and entropy changes for the adsorption of copper were computed to predict the nature of adsorption process. The removal of copper was varying from 2% to 97% depending on pH and initial copper concentration. A particular behavior of PCEAC at pH = 4 is discussed and explained by viscosity measurements as a particular conformation of the polymer. The effect of cadmium on copper adsorption was also tested. Some co-adsorption phenomena were observed at low cadmium concentrations ([Cd]/[Cu]≤1), while copper desorption in favor of cadmium adsorption were quantified at higher cadmium concentrations ([Cd]/[Cu]>1).
Original languageEnglish
Article number100575
JournalMaterials Today Communications
Volume20
Number of pages8
ISSN2352-4928
DOIs
Publication statusPublished - 2019

Keywords

  • Polycarbobetaine
  • Adsorption
  • Physico-chemical behavior
  • pH-sensitive

Cite this

Mouton, Julia ; Kirkelund, Gunvor Marie ; Hassen, Yousra ; Chastagnol, Simon ; Van den Berghe, Hélène ; Coudane, Jean ; Turmine, Mireille. / Performances and behavior of a water-soluble and pH-sensitive polycarboxybetaine used for metal ion recovery. In: Materials Today Communications. 2019 ; Vol. 20.
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title = "Performances and behavior of a water-soluble and pH-sensitive polycarboxybetaine used for metal ion recovery",
abstract = "Zwiterionic functional groups give polycarboxybetaines a great ability to chelate copper and their use for metal ions recovery was suggested in previous studies. The use of a water-soluble and pH-sensitive polymer (polycarboxy-ethyl-3-aminocrotonate - PCEAC) was investigated for the removal of copper from aqueous solution. The equilibrium adsorption level was determined as a function of temperature, pH and initial adsorbate concentration. The good fit to the Langmuir model offered various information about copper uptake mechanisms. The maximal adsorption capacities were found to reach 253 ± 11 mg of copper per g of PCEAC at pH = 6. The thermodynamic parameters such as free energy, enthalpy and entropy changes for the adsorption of copper were computed to predict the nature of adsorption process. The removal of copper was varying from 2{\%} to 97{\%} depending on pH and initial copper concentration. A particular behavior of PCEAC at pH = 4 is discussed and explained by viscosity measurements as a particular conformation of the polymer. The effect of cadmium on copper adsorption was also tested. Some co-adsorption phenomena were observed at low cadmium concentrations ([Cd]/[Cu]≤1), while copper desorption in favor of cadmium adsorption were quantified at higher cadmium concentrations ([Cd]/[Cu]>1).",
keywords = "Polycarbobetaine, Adsorption, Physico-chemical behavior, pH-sensitive",
author = "Julia Mouton and Kirkelund, {Gunvor Marie} and Yousra Hassen and Simon Chastagnol and {Van den Berghe}, H{\'e}l{\`e}ne and Jean Coudane and Mireille Turmine",
year = "2019",
doi = "10.1016/j.mtcomm.2019.100575",
language = "English",
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journal = "Materials Today Communications",
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Performances and behavior of a water-soluble and pH-sensitive polycarboxybetaine used for metal ion recovery. / Mouton, Julia; Kirkelund, Gunvor Marie; Hassen, Yousra; Chastagnol, Simon; Van den Berghe, Hélène; Coudane, Jean; Turmine, Mireille.

In: Materials Today Communications, Vol. 20, 100575, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Performances and behavior of a water-soluble and pH-sensitive polycarboxybetaine used for metal ion recovery

AU - Mouton, Julia

AU - Kirkelund, Gunvor Marie

AU - Hassen, Yousra

AU - Chastagnol, Simon

AU - Van den Berghe, Hélène

AU - Coudane, Jean

AU - Turmine, Mireille

PY - 2019

Y1 - 2019

N2 - Zwiterionic functional groups give polycarboxybetaines a great ability to chelate copper and their use for metal ions recovery was suggested in previous studies. The use of a water-soluble and pH-sensitive polymer (polycarboxy-ethyl-3-aminocrotonate - PCEAC) was investigated for the removal of copper from aqueous solution. The equilibrium adsorption level was determined as a function of temperature, pH and initial adsorbate concentration. The good fit to the Langmuir model offered various information about copper uptake mechanisms. The maximal adsorption capacities were found to reach 253 ± 11 mg of copper per g of PCEAC at pH = 6. The thermodynamic parameters such as free energy, enthalpy and entropy changes for the adsorption of copper were computed to predict the nature of adsorption process. The removal of copper was varying from 2% to 97% depending on pH and initial copper concentration. A particular behavior of PCEAC at pH = 4 is discussed and explained by viscosity measurements as a particular conformation of the polymer. The effect of cadmium on copper adsorption was also tested. Some co-adsorption phenomena were observed at low cadmium concentrations ([Cd]/[Cu]≤1), while copper desorption in favor of cadmium adsorption were quantified at higher cadmium concentrations ([Cd]/[Cu]>1).

AB - Zwiterionic functional groups give polycarboxybetaines a great ability to chelate copper and their use for metal ions recovery was suggested in previous studies. The use of a water-soluble and pH-sensitive polymer (polycarboxy-ethyl-3-aminocrotonate - PCEAC) was investigated for the removal of copper from aqueous solution. The equilibrium adsorption level was determined as a function of temperature, pH and initial adsorbate concentration. The good fit to the Langmuir model offered various information about copper uptake mechanisms. The maximal adsorption capacities were found to reach 253 ± 11 mg of copper per g of PCEAC at pH = 6. The thermodynamic parameters such as free energy, enthalpy and entropy changes for the adsorption of copper were computed to predict the nature of adsorption process. The removal of copper was varying from 2% to 97% depending on pH and initial copper concentration. A particular behavior of PCEAC at pH = 4 is discussed and explained by viscosity measurements as a particular conformation of the polymer. The effect of cadmium on copper adsorption was also tested. Some co-adsorption phenomena were observed at low cadmium concentrations ([Cd]/[Cu]≤1), while copper desorption in favor of cadmium adsorption were quantified at higher cadmium concentrations ([Cd]/[Cu]>1).

KW - Polycarbobetaine

KW - Adsorption

KW - Physico-chemical behavior

KW - pH-sensitive

U2 - 10.1016/j.mtcomm.2019.100575

DO - 10.1016/j.mtcomm.2019.100575

M3 - Journal article

VL - 20

JO - Materials Today Communications

JF - Materials Today Communications

SN - 2352-4928

M1 - 100575

ER -