
TY  - JOUR
A1  - Furlong, DN 
A1  - Tricot, Y 
A1  - Swift, JD 
A1  - Sasse, WHF 
T1  - Competitive adsorption of sensitizer and electron transfer agent in an aqueous photolysis system
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1984
VL  - 37
IS  - 4
SP  - 703
EP  - 711
KW  - 
UR  - https://doi.org/10.1071/CH9840703 
N2  - Tris(2,2'-bipyridine)ruthenium(II) dichloride, ru2+, and methylviologen, mv2+, have been shown to adsorb strongly onto negative surfaces of silica and dhp vesicles. When both ru2+ and mv2+ are present in an aqueous solution mv2+ demonstrates the higher affinity for adsorption. The distribution of ru2+ and mv2+ between the 'adsorbed' and 'bulk solution' states has been found to dramatically affect hydrogen production from a photolysis mixture in which these components function as sensitizer and electron transfer reagent, respectively. In the adsorbed state, charge separation is diminished and reaction of mv+ with platinum catalyst retarded. Enhanced adsorption of mv2+ may render that left in solution more prone to hydrogenation at the metal catalyst surface. 
ER  -

