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

Abiman, Poobalasingam, Wildgoose, Gregory G., Crossley, Alison and Compton, Richard G. (2008) Removal of palladium ions from aqueous systems by chemically modified cysteine carbon powder. Journal of Materials Chemistry, 18 (33). pp. 3948-3953. ISSN 1364-5501

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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).

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017) Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017)
Depositing User:	Rachel Smith
Date Deposited:	29 Mar 2011 16:18
Last Modified:	15 Dec 2022 01:31
URI:	https://ueaeprints.uea.ac.uk/id/eprint/27489
DOI:	10.1039/B805804K

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