Dataset.

Supplementary information for Ionic polymer absorbents inspired by deep eutectic solvents to recover cobalt and nickel [Dataset]

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/365988
Digital.CSIC. Repositorio Institucional del CSIC
  • Bastos, Henrique
  • Gallastegui, Antonella
  • López de Lacalle, Jon
  • Scaheffer, Nicolas
  • Pringle, Jennifer M.
  • Mecerreyes, David
  • Pozo Gonzalo, Cristina
Under a Creative Commons License BY 3.0., Vídeo mp4 of pieces of polymers after adsorbing metal irons. Stripping with water. Speed x25. Total real time 5 minutes.-- Table S1. Polymer compositions used in this work, describing the HBA and HBD used as well as the HBA:HBD molar ratio of each component.-- Figure S1. Schematic representation of the interaction between the HBA (METAC) and HBD of the monomer through hydrogen bonding of chloride of METAC and the OH-moiety of HBD, resulting in an ionic polymer after photopolymerization. In this case PCA is used as an example of HBD, although the same logic applied to the other polymers used in this work.-- Figure S2. FTIR spectra of the monomers (bottom spectra), i.e. mixtures of METAC and hydroxylated solvents in a 1:2 molar ratio, and after their photopolymerization (poly, top spectra), with highlighted bands related to the polymerization process. The represented polymers are polyMETAC:Gly (a), polyMETAC:EG (b), polyMETAC:BdOH (c) and polyMETAC:BuOH (d).-- Figure S3. FTIR spectra of each monomer component, i.e. METAC or an hydroxylated solvent, and after mixing both components in a 1:2 molar ratio (METAC:hydroxylated solvent).--Figure S4. polyMETAC:Gly, polyMETAC:EG, polyMETAC:BdOH, polyMETAC:BuOH, polyMETAC:TA and polyMETAC:PGA polymers after preliminary metal absorption assays – 48 h contact with either 50 mM CoCl2∙6H2O (a) or 50 mM NiCl2∙6H2O (b) in aqueous solution (top) or 6 M HCl (bottom).-- Figure S5. a) UV-Vis spectra of mixed CoCl2∙6H2O and NiCl2∙6H2O dissolved in either aqueous solution (aq) or in 6 M HCl (HCl), showing both Co and Ni species showed in the individual metal solutions. b,c) polyMETAC:Gly, polyMETAC:EG, polyMETAC:BdOH and polyMETAC:BuOH polymers after preliminary metal absorption assays – 48 h contact with 50 mM CoCl2∙6H2O and 50 mM NiCl2∙6H2O in either aqueous (b) or in 6 M HCl (c) solution.-- Table S2. Fraction of carbon, hydrogen and nitrogen from CHN elemental analysis of selected polymers following metal uptake process in mixed Co-Ni solutions in 6 M HCl. The absorption capacity qe was used to determine the nitrogen/absorbed metal ratios for discussion of the effect of the trimethylammonium moiety of METAC in the overall absorption capacity of the polymers.-- Figure S6. 13C-NMR spectra of remaining media after 48 h contact time of the polymers polyMETAC:Gly (a), polyMETAC:EG (b), polyMETAC:BdOH (c) and polyMETAC:BuOH (d) with 6 M HCl media. All samples were diluted in D2O in the same ratios prior to analysis.-- Figure S7. 13C-NMR spectra of remaining media after 48 h contact time of polyMETAC:TA with 6 M HCl media. The samples were diluted in D2O in the same ratios prior to analysis..-- Figure S8. FTIR spectra of polyMETAC:TA before (top) and after (bottom) metal uptake, suggesting the maintenance of the polymeric structure.-- Figure S9. Swelling (%) of METAC:alcohol polymers after contact for 48 h with a mixture of Co and Ni, using 50 mM of each metal in 6 M HCl solutions and after a pre-equilibration step using 6 M HCl.-- Figure S10. a) Absorption capacity of polyMETAC:EG in each of the five cycles after contacting a 50 mM CoCl2∙6H2O and NiCl2∙6H2O solution in 6 M HCl. b) Progression of the swelling degree of the METAC:EG polymers in each cycle, either after absorption of the metals or after each of the three water washes carried out in each cycle.-- Figure S11. a) Absorption capacity of polyMETAC:TA in each of the five cycles after contacting a 50 mM CoCl2∙6H2O and NiCl2∙6H2O solution in 6 M HCl. b) Progression of the swelling degree of the METAC:TA polymers in each cycle, either after absorption of the metals or after each of the three water washes carried out in each cycle. Three different scenarios are shown, depending on the metal solution that was used during absorption, either individual 50 mM CoCl2∙6H2O (Co,black square), individual 50 mM NiCl2∙6H2O (Ni, red circle) or a mixture of both (Co + Ni, blue triangle)., Peer reviewed
 
DOI: http://hdl.handle.net/10261/365988
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/365988

HANDLE: http://hdl.handle.net/10261/365988
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/365988
 
Ver en: http://hdl.handle.net/10261/365988
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/365988

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/365988
Dataset. 2024

SUPPLEMENTARY INFORMATION FOR IONIC POLYMER ABSORBENTS INSPIRED BY DEEP EUTECTIC SOLVENTS TO RECOVER COBALT AND NICKEL [DATASET]

Digital.CSIC. Repositorio Institucional del CSIC
  • Bastos, Henrique
  • Gallastegui, Antonella
  • López de Lacalle, Jon
  • Scaheffer, Nicolas
  • Pringle, Jennifer M.
  • Mecerreyes, David
  • Pozo Gonzalo, Cristina
Under a Creative Commons License BY 3.0., Vídeo mp4 of pieces of polymers after adsorbing metal irons. Stripping with water. Speed x25. Total real time 5 minutes.-- Table S1. Polymer compositions used in this work, describing the HBA and HBD used as well as the HBA:HBD molar ratio of each component.-- Figure S1. Schematic representation of the interaction between the HBA (METAC) and HBD of the monomer through hydrogen bonding of chloride of METAC and the OH-moiety of HBD, resulting in an ionic polymer after photopolymerization. In this case PCA is used as an example of HBD, although the same logic applied to the other polymers used in this work.-- Figure S2. FTIR spectra of the monomers (bottom spectra), i.e. mixtures of METAC and hydroxylated solvents in a 1:2 molar ratio, and after their photopolymerization (poly, top spectra), with highlighted bands related to the polymerization process. The represented polymers are polyMETAC:Gly (a), polyMETAC:EG (b), polyMETAC:BdOH (c) and polyMETAC:BuOH (d).-- Figure S3. FTIR spectra of each monomer component, i.e. METAC or an hydroxylated solvent, and after mixing both components in a 1:2 molar ratio (METAC:hydroxylated solvent).--Figure S4. polyMETAC:Gly, polyMETAC:EG, polyMETAC:BdOH, polyMETAC:BuOH, polyMETAC:TA and polyMETAC:PGA polymers after preliminary metal absorption assays – 48 h contact with either 50 mM CoCl2∙6H2O (a) or 50 mM NiCl2∙6H2O (b) in aqueous solution (top) or 6 M HCl (bottom).-- Figure S5. a) UV-Vis spectra of mixed CoCl2∙6H2O and NiCl2∙6H2O dissolved in either aqueous solution (aq) or in 6 M HCl (HCl), showing both Co and Ni species showed in the individual metal solutions. b,c) polyMETAC:Gly, polyMETAC:EG, polyMETAC:BdOH and polyMETAC:BuOH polymers after preliminary metal absorption assays – 48 h contact with 50 mM CoCl2∙6H2O and 50 mM NiCl2∙6H2O in either aqueous (b) or in 6 M HCl (c) solution.-- Table S2. Fraction of carbon, hydrogen and nitrogen from CHN elemental analysis of selected polymers following metal uptake process in mixed Co-Ni solutions in 6 M HCl. The absorption capacity qe was used to determine the nitrogen/absorbed metal ratios for discussion of the effect of the trimethylammonium moiety of METAC in the overall absorption capacity of the polymers.-- Figure S6. 13C-NMR spectra of remaining media after 48 h contact time of the polymers polyMETAC:Gly (a), polyMETAC:EG (b), polyMETAC:BdOH (c) and polyMETAC:BuOH (d) with 6 M HCl media. All samples were diluted in D2O in the same ratios prior to analysis.-- Figure S7. 13C-NMR spectra of remaining media after 48 h contact time of polyMETAC:TA with 6 M HCl media. The samples were diluted in D2O in the same ratios prior to analysis..-- Figure S8. FTIR spectra of polyMETAC:TA before (top) and after (bottom) metal uptake, suggesting the maintenance of the polymeric structure.-- Figure S9. Swelling (%) of METAC:alcohol polymers after contact for 48 h with a mixture of Co and Ni, using 50 mM of each metal in 6 M HCl solutions and after a pre-equilibration step using 6 M HCl.-- Figure S10. a) Absorption capacity of polyMETAC:EG in each of the five cycles after contacting a 50 mM CoCl2∙6H2O and NiCl2∙6H2O solution in 6 M HCl. b) Progression of the swelling degree of the METAC:EG polymers in each cycle, either after absorption of the metals or after each of the three water washes carried out in each cycle.-- Figure S11. a) Absorption capacity of polyMETAC:TA in each of the five cycles after contacting a 50 mM CoCl2∙6H2O and NiCl2∙6H2O solution in 6 M HCl. b) Progression of the swelling degree of the METAC:TA polymers in each cycle, either after absorption of the metals or after each of the three water washes carried out in each cycle. Three different scenarios are shown, depending on the metal solution that was used during absorption, either individual 50 mM CoCl2∙6H2O (Co,black square), individual 50 mM NiCl2∙6H2O (Ni, red circle) or a mixture of both (Co + Ni, blue triangle)., Peer reviewed




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