Synergetic PVA degradation and H2 evolution in photocatalytic fuel cells using Ag@Fe_(2)O_(3) cathode

In a dual-chamber photocatalytic fuel cell device,polyvinyl alcohol degradation and H2 evolution were concurrently achieved.The setup involved commercial P25 as the photoanode and Ag@Fe_(2)O_(3) nanoparticles as the cathode.Additionally,the feasibility of a Fentonlike reaction in the cathode,utilizing Fe^(2+)ions and pumped O_(2),was demonstrated.Different cathode materials,polyvinyl alcohol types,and pH values’effects were assessed on device performance.Quenching tests highlighted photoinduced holes(h+)and OH·radicals as pivotal contributions to polyvinyl alcohol degradation.Long-term stability of the device was established through cycling experiments.