Selective recovery of silver and palladium from acidic waste solutions using dithiocarbamate-functionalized cellulose

Biswas, Foni B.; Rahman, Ismail M.M.; Nakakubo, Keisuke; Yunoshita, Koki; Endo, Masaru; Nagai, Kanji; Mashio, Asami S.; Taniguchi, Tsuyoshi; Nishimura, Tatsuya; Maeda, Katsuhiro; Hasegawa, Hiroshi

doi:10.1016/j.cej.2020.127225

Cited by 50 publications

(10 citation statements)

References 54 publications

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“…Figure b shows the effect of the HNO 3 concentration on the adsorption capacity of Ag + on SPC-3. The adsorption capacity of Ag + decreases with the increase of the HNO 3 concentration, which agrees well with other relevant literature reports. , The decrease of the Ag + adsorption amount at higher acid concentrations can be attributed to the following two factors. First, the presence of competitive adsorption between H + and Ag + in a high concentration of HNO 3 may prevent the adsorption of Ag + ions on the adsorption sites .…”

Section: Resultssupporting

confidence: 92%

“…For example, gels immobilized with functional groups of polyethylene–polyamine or dithiooxamide exhibited high affinity for Ag + . Dithiocarbamate-functionalized cellulose delivered high selectivity for the recovery of silver from acidic waste solutions . The introduction of amino groups has been proven to enhance the Ag + adsorption performance of biochar .…”

Section: Introductionmentioning

confidence: 99%

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Selective Adsorption and Recovery of Silver from Acidic Solution Using Biomass-Derived Sulfur-Doped Porous Carbon

Fan,

Duan,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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It is vital to recycle precious metals effectively such as silver from waste sources because of limited natural reserves. Herein, passion fruit (Passiflora edulis Sims) shell-derived S-doped porous carbons (SPCs) were newly synthesized by hydrothermal carbonization and following with activation by KOH/(NH 4 ) 2 SO 4 , and the adsorption of Ag + on SPC under acidic solutions was investigated. It was found that the activator of (NH 4 ) 2 SO 4 can not only introduce the doping of S elements but also increase the proportion of mesopores in the as-prepared SPC. As the active site, the increasing S doping can improve the adsorption of Ag + on SPC. The kinetic data of Ag + adsorption by SPC was consistent with the pseudosecond-order kinetic model. The Langmuir isothermal model was used to well fit the Ag + adsorption isotherms of SPC, and the maximum adsorption capacity of the optimized SPC-3 for Ag + is up to 115 mg/g in 0.5 mol/L HNO 3 solution. SPC-3 showed good selectivity toward Ag + over diverse competing cations, which is mainly attributed to the strong bonding between Ag + ions and the sulfur-containing functional groups on the surface of SPC-3 resulting in the formation of Ag 2 S nanoparticles. The adsorbed Ag could be recovered as an elemental form by a simple calcination. This study provides a new insight into the design of an environmentally friendly and efficient adsorbent for the selective recovery of silver from acidic aqueous media.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Selective Adsorption and Recovery of Silver from Acidic Solution Using Biomass-Derived Sulfur-Doped Porous Carbon

Fan,

Duan,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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“…In addition, the Pd(II) adsorption performance of single-site and multisite adsorbents reported in the literature was compared (Table S3). − Among the previously reported research studies, PAF-1-N 4 showed good performance of deep removal capacity.…”

Section: Resultsmentioning

confidence: 94%

Nanoporous Aromatic Framework with Bulky Binding Groups for Palladium Recovery

Zhao

et al. 2022

ACS Appl. Nano Mater.

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Effective extraction of palladium from secondary resources is a promising solution for the sustainable utilization of precious metals. A cyclic molecule containing four N atoms was modified on a nanoporous aromatic framework (PAF) to give PAF-1-N 4 , which provided a meaningful route to introduce bulky molecules with multiple coordination sites into the PAF materials. Through the interaction of multiple binding sites to Pd(II), PAF-1-N 4 showed rapid and deep adsorption of Pd(II) at a low initial concentration. The maximum Pd(II) adsorption capacity of PAF-1-N 4 reached 299.4 mg g −1 , and PAF-1-N 4 reduced the concentration of Pd(II) from 5.35 ppm to 84 ppb within 5 min and finally to 42 ppb within 60 min. After the in situ reduction, the obtained Pd@ PAF-1-N 4 exhibited good catalytic activity and reusability for the Suzuki−Miyaura coupling reaction in five-cycle catalytic experiments, thus realizing its sustainable utilization of palladium extracted from secondary resources.

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“…Another method is employing supported liquid membranes (SLMs) or polymer inclusion membranes (PIMs), where a liquid carrier is incorporated into the matrix either by lling the pores or blending with the polymer solution prior casting. 32,33 Functionalizing polymeric membranes with ionexchange groups, chelating groups, or ligands can be considered one of the effective methods for palladium recovery, 34,35 nally creating membranes from metal-complexing polymers. Among these methods, the use of metal-complexing polymers stands out due to the potential for achieving the maximum adsorption site concentration per membrane volume, with at least one adsorption site present in each monomeric unit.…”

Section: Introductionmentioning

confidence: 99%

From waste to wealth: chelating polymeric membranes for precious palladium recovery from wastewater

Aburabie,

Mohammed,

Kumaran

et al. 2023

J. Mater. Chem. A

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Selective recovery of silver and palladium from acidic waste solutions using dithiocarbamate-functionalized cellulose

Cited by 50 publications

References 54 publications

Selective Adsorption and Recovery of Silver from Acidic Solution Using Biomass-Derived Sulfur-Doped Porous Carbon

Selective Adsorption and Recovery of Silver from Acidic Solution Using Biomass-Derived Sulfur-Doped Porous Carbon

Nanoporous Aromatic Framework with Bulky Binding Groups for Palladium Recovery

From waste to wealth: chelating polymeric membranes for precious palladium recovery from wastewater

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