Cobalt-porphyrin/Bi19S27Br3 nanorods enable photocatalytic CO2 reduction to C2H4

Abstract

Herein, Co(II) meso-tetra(4-cyanobenzyl)porphine (TCBP(Co)) was electrostatically integrated onto Bi₁₉S₂₇Br₃ nanorods. Its Co–N₄ sites and electron withdrawing cyano groups promote interfacial charge separation and facilitate CO₂ activation, thereby enhancing solar driven CO₂ reduction to C₂H₄. This work provides an effective strategy for designing high performance organic/inorganic photocatalysts for selective multielectron CO₂ conversion.