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Dialdehyde carboxymethyl cellulose cross-linked chitosan for the recovery of palladium and platinum from aqueous solution

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Abstract
Platinum (Pt) and palladium (Pd) have widespread applications, such as in catalysts, jewelry, fuel cells, and electronics because of their favorable physical and chemical properties. Recovery of Pt and Pd from secondary sources is of great concern due to the increased market demand and limitation of the natural reserves of these precious metals. The aim of this research is to achieve recovery of Pt and Pd ions from dilute aqueous solution using dialdehyde of carboxymethyl cellulose (DCMC) crosslinked chitosan (Ch-DCMC). The DCMC was prepared by periodate oxidation of carboxymethyl cellulose (CMC). Both the DCMC and Ch-DCMC were characterized before and after Pt or Pd adsorption using Fourier-transformed infrared (FTIR) spectroscopy, X-ray powder diffraction (XRPD), and scanning electron microscopy (SEM). The effect of cross-linking ratios of chitosan and DCMC (1:1, 1:0.8, 1:0.5, 1:0.25 and 1:0.1) on the Pt and Pd recovery was studied. The optimal cross-linking ratio was found to be 1:0.25 (chitosan: DCMC) with maximum adsorption capacity of 80.8 mg/g Pt and 89.4 mg/g Pd. High selectivity for Pt and Pd compared to base metals and common anions was achieved.
Keywords
Platinum, Palladium, Chitosan, Carboxymethyl cellulose, Resource recovery, SELECTIVE RECOVERY, ACTIVATED CARBON, WASTE-WATER, ADSORPTIVE RECOVERY, SORPTION, PD(II), IONS, REMOVAL, CHITIN, GOLD

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MLA
Asere, Tsegaye Girma et al. “Dialdehyde Carboxymethyl Cellulose Cross-linked Chitosan for the Recovery of Palladium and Platinum from Aqueous Solution.” REACTIVE & FUNCTIONAL POLYMERS 141 (2019): 145–154. Print.
APA
Asere, T. G., Mincke, S., Folens, K., Vanden Bussche, F., Lapeire, L., Verbeken, K., Van Der Voort, P., et al. (2019). Dialdehyde carboxymethyl cellulose cross-linked chitosan for the recovery of palladium and platinum from aqueous solution. REACTIVE & FUNCTIONAL POLYMERS, 141, 145–154.
Chicago author-date
Asere, Tsegaye Girma, Stein Mincke, Karel Folens, Flore Vanden Bussche, Linsey Lapeire, Kim Verbeken, Pascal Van Der Voort, Dejene A. Tessema, Gijs Du Laing, and Christian Stevens. 2019. “Dialdehyde Carboxymethyl Cellulose Cross-linked Chitosan for the Recovery of Palladium and Platinum from Aqueous Solution.” Reactive & Functional Polymers 141: 145–154.
Chicago author-date (all authors)
Asere, Tsegaye Girma, Stein Mincke, Karel Folens, Flore Vanden Bussche, Linsey Lapeire, Kim Verbeken, Pascal Van Der Voort, Dejene A. Tessema, Gijs Du Laing, and Christian Stevens. 2019. “Dialdehyde Carboxymethyl Cellulose Cross-linked Chitosan for the Recovery of Palladium and Platinum from Aqueous Solution.” Reactive & Functional Polymers 141: 145–154.
Vancouver
1.
Asere TG, Mincke S, Folens K, Vanden Bussche F, Lapeire L, Verbeken K, et al. Dialdehyde carboxymethyl cellulose cross-linked chitosan for the recovery of palladium and platinum from aqueous solution. REACTIVE & FUNCTIONAL POLYMERS. 2019;141:145–54.
IEEE
[1]
T. G. Asere et al., “Dialdehyde carboxymethyl cellulose cross-linked chitosan for the recovery of palladium and platinum from aqueous solution,” REACTIVE & FUNCTIONAL POLYMERS, vol. 141, pp. 145–154, 2019.
@article{8616771,
  abstract     = {Platinum (Pt) and palladium (Pd) have widespread applications, such as in catalysts, jewelry, fuel cells, and electronics because of their favorable physical and chemical properties. Recovery of Pt and Pd from secondary sources is of great concern due to the increased market demand and limitation of the natural reserves of these precious metals. The aim of this research is to achieve recovery of Pt and Pd ions from dilute aqueous solution using dialdehyde of carboxymethyl cellulose (DCMC) crosslinked chitosan (Ch-DCMC). The DCMC was prepared by periodate oxidation of carboxymethyl cellulose (CMC). Both the DCMC and Ch-DCMC were characterized before and after Pt or Pd adsorption using Fourier-transformed infrared (FTIR) spectroscopy, X-ray powder diffraction (XRPD), and scanning electron microscopy (SEM). The effect of cross-linking ratios of chitosan and DCMC (1:1, 1:0.8, 1:0.5, 1:0.25 and 1:0.1) on the Pt and Pd recovery was studied. The optimal cross-linking ratio was found to be 1:0.25 (chitosan: DCMC) with maximum adsorption capacity of 80.8 mg/g Pt and 89.4 mg/g Pd. High selectivity for Pt and Pd compared to base metals and common anions was achieved.},
  author       = {Asere, Tsegaye Girma and Mincke, Stein and Folens, Karel and Vanden Bussche, Flore and Lapeire, Linsey and Verbeken, Kim and Van Der Voort, Pascal and Tessema, Dejene A. and Du Laing, Gijs and Stevens, Christian},
  issn         = {1381-5148},
  journal      = {REACTIVE & FUNCTIONAL POLYMERS},
  keywords     = {Platinum,Palladium,Chitosan,Carboxymethyl cellulose,Resource recovery,SELECTIVE RECOVERY,ACTIVATED CARBON,WASTE-WATER,ADSORPTIVE RECOVERY,SORPTION,PD(II),IONS,REMOVAL,CHITIN,GOLD},
  language     = {eng},
  pages        = {145--154},
  title        = {Dialdehyde carboxymethyl cellulose cross-linked chitosan for the recovery of palladium and platinum from aqueous solution},
  url          = {http://dx.doi.org/10.1016/j.reactfunctpolym.2019.05.008},
  volume       = {141},
  year         = {2019},
}

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