Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder

Poobalasingam Abiman; Gregory G. Wildgoose; Alison Crossley; Richard G. Compton

doi:10.1039/B805804K

Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder

Poobalasingam Abiman, Gregory G. Wildgoose, Alison Crossley, Richard G. Compton

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

L-Cysteine methyl ester modified graphite powder (Cyscarbon) was used as a material to remove palladium ions from aqueous media. Cheap graphite powders (2–20 µm in diameter) were surface functionalised with L-cysteine methyl ester. The removal of Pd(II) ions was studied as a function of concentration of Pd(II) ions, contact time with modified carbon and amount of modified carbon used. Determination of palladium ions was performed by adsorptive stripping voltammetry using a mercury nanodroplet array modified glassy carbon electrode. Dimethylglyoxime (DMG) was used as chelating agent for palladium. It was found that 1 g of Cyscarbon takes up 60 µM palladium ions from 25 mL of 100 µM palladium ion samples whilst the recovery experiment carried out by stirring the palladium–Cyscarbon with DMG gave a yield of 45% (optimised).

Original language	English
Pages (from-to)	3948-3953
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	18
Issue number	33
DOIs	https://doi.org/10.1039/B805804K
Publication status	Published - 2008

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10.1039/B805804K

Cite this

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title = "Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder",

abstract = "L-Cysteine methyl ester modified graphite powder (Cyscarbon) was used as a material to remove palladium ions from aqueous media. Cheap graphite powders (2–20 µm in diameter) were surface functionalised with L-cysteine methyl ester. The removal of Pd(II) ions was studied as a function of concentration of Pd(II) ions, contact time with modified carbon and amount of modified carbon used. Determination of palladium ions was performed by adsorptive stripping voltammetry using a mercury nanodroplet array modified glassy carbon electrode. Dimethylglyoxime (DMG) was used as chelating agent for palladium. It was found that 1 g of Cyscarbon takes up 60 µM palladium ions from 25 mL of 100 µM palladium ion samples whilst the recovery experiment carried out by stirring the palladium–Cyscarbon with DMG gave a yield of 45% (optimised).",

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T1 - Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder

AU - Abiman, Poobalasingam

AU - Wildgoose, Gregory G.

AU - Crossley, Alison

AU - Compton, Richard G.

PY - 2008

Y1 - 2008

N2 - L-Cysteine methyl ester modified graphite powder (Cyscarbon) was used as a material to remove palladium ions from aqueous media. Cheap graphite powders (2–20 µm in diameter) were surface functionalised with L-cysteine methyl ester. The removal of Pd(II) ions was studied as a function of concentration of Pd(II) ions, contact time with modified carbon and amount of modified carbon used. Determination of palladium ions was performed by adsorptive stripping voltammetry using a mercury nanodroplet array modified glassy carbon electrode. Dimethylglyoxime (DMG) was used as chelating agent for palladium. It was found that 1 g of Cyscarbon takes up 60 µM palladium ions from 25 mL of 100 µM palladium ion samples whilst the recovery experiment carried out by stirring the palladium–Cyscarbon with DMG gave a yield of 45% (optimised).

AB - L-Cysteine methyl ester modified graphite powder (Cyscarbon) was used as a material to remove palladium ions from aqueous media. Cheap graphite powders (2–20 µm in diameter) were surface functionalised with L-cysteine methyl ester. The removal of Pd(II) ions was studied as a function of concentration of Pd(II) ions, contact time with modified carbon and amount of modified carbon used. Determination of palladium ions was performed by adsorptive stripping voltammetry using a mercury nanodroplet array modified glassy carbon electrode. Dimethylglyoxime (DMG) was used as chelating agent for palladium. It was found that 1 g of Cyscarbon takes up 60 µM palladium ions from 25 mL of 100 µM palladium ion samples whilst the recovery experiment carried out by stirring the palladium–Cyscarbon with DMG gave a yield of 45% (optimised).

U2 - 10.1039/B805804K

DO - 10.1039/B805804K

M3 - Article

SN - 1364-5501

VL - 18

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JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

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