Oxidation, basic conditions photo

Under similar conditions silver is oxidized only to the +2 oxidation state, the ultimate product being Agp2, which is not soluble in aHF. If however the F2 is photo- dissociated to atoms (sunlight will do) the Agp2 is further oxidized and dissolves in the aHF made basic... 

Figure 11.1. Schematic of photocatalytic fuel cell with single compartment (1) single compartment photo-eleetrochemical cell (2) photocatalyst thin film (3) anode substrate (4) aqueous electrolyte (5) cathode support (6) cathode catalyst (7) oxidization reaction of OH by holes in basic media (8) oxidization of organic matter by OH radicals (9) oxidization reaction of organic matter in neutral media (10) proton reduction to produce hydrogen in anaerobic condition (11) oxygen reduction to generate water in aerobic condition (12) light irradiation (13) electric circuit (14) loading (15) quartz window.

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