Multicomponent plasmonic photocatalysts consisting of a plasmonic antenna and a reactive catalytic surface: the antenna-reactor effect

A multicomponent photocatalyst comprising:

• by a reactive component chemically attached to a plasmonic material coprecipitation methods,
• wherein the reactive component is a transition metal alloyed at the surface of the plasmonic material, thereby producing a surface alloy of the reactive component with the plasmonic material to form a surface alloy particle,
• wherein the bulk of the surface alloy particle is plasmonic material and substantially all of the reactive component is present at the surface of the surface alloy particle.