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Issue 33, 2008
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Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder

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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).

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

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Publication details

The article was received on 07 Apr 2008, accepted on 06 Jun 2008 and first published on 14 Jul 2008


Article type: Paper
DOI: 10.1039/B805804K
Citation: J. Mater. Chem., 2008,18, 3948-3953
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    Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder

    P. Abiman, G. G. Wildgoose, A. Crossley and R. G. Compton, J. Mater. Chem., 2008, 18, 3948
    DOI: 10.1039/B805804K

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