Direct photocatalytic synthesis of N-2/H2O to ammonia by plasmonic metal Pt supported on coal based graphene oxide/silica dioxide

摘要

Here, we report the photocatalytic synthesis of N-2/H2O to NH(3)over plasmonic metal Pt supported on the coal-based graphene oxide/silica dioxide. Through the capture experiments of active substance, the photoinduced electrons were found to play a key role during the photocatalysis. As proving by the FDTD theoretical calculation, the photogenerated electric filed can distribute around the surface of Pt nanoparticle via SPR effect under visible light, which can weaken the bond of N equivalent to N by polarization. NH(3)and N(2)H(4)were found to be the photocatalytic products due to the results of the(1)H NMR characterization.