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Adsorption of silver complexes on carbon from aqueous solution

✍ Scribed by P. Ehrburger; J. Dentzer; J. Lahaye

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
455 KB
Volume
25
Category
Article
ISSN
0008-6223

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✦ Synopsis

The adsorption of silver diammine complex on graphitized carbon black has been studied in aqueous ammonia solution. The carbon black has been gasified to various levels of burnoff in order to increase its active surface area (ASA). The effect of different parameters, ASA, concentrations of silver diammine and of ammonium cations on the silver adsorption has been investigated. The metal complex interacts specifically with the active sites located in the ASA where it undergoes a reduction to metallic silver. A phenomenological model of the adsorption and decomposition reactions of the silver complex is proposed.

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