- 231-238_736_Bourikas_12-3.pdf
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Paper ID736
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Paper statusPublished
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Abstract
The mechanism of retention of vanadium oxo-species at the “titanium oxide/aqueous solution”
interface was investigated over a wide pH range (4-9) and V(V) solution concentration (10-5-2×10-2 M)
by combining equilibrium deposition experiments, potentiometric titrations, microelectrophoresis and
“proton–ion” titration curves. It was inferred that the adsorbed V(V) oxo-species are retained inside
the compact layer of the interface through hydrogen/coordinative bonds forming very probably innersphere
complexes with the titania surface groups.
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