efficient CPbondformation reaction of diarylphosphine oxides with aryl iodides was achieved by combining nickelcatalysis and visible‐light‐induced photoredoxcatalysis. This dual‐catalytic reaction showed a broad substrate scope, excellent functional group tolerance, and afforded the corresponding products in good to excellent yields. Compared with the previously reported use of photoredox/nickel dual
combination of black TiO2 nanoparticles (NPs) with a nickel catalyst provides a low-cost, sustainable, and reusable alternative dual catalytic system to a homogeneous counterpart (noble metals). This black TiO2-photoredox/nickel dual catalytic system has efficiently driven C–P bond formation between aryliodides and diarylphosphine oxides under visible light, providing good to excellent yields as well as