A　light-induced　carbonylative　Suzuki　reaction　to　produce　diaryl　ketone　was　achieved　over　Pd(phen)Cl2/TiO2　under　mild　condition　via　a　successful　coupling　of　TiO2-based　photocatalytic　decomposition　of　DMF　to　generate　CO　and　the　Pd-based　catalysis.　An　optimum　conversion　of　PhI　of　89%,　with　a　yield　of　45%　to　the　desired　carbonylative　diaryl　ketone　was　achieved　over　irradiated　Pd(phen)Cl2/TiO2　under　CO2　atmosphere.　Although　the　side　self-coupling　of　PhI　to　form　biphenyl　cannot　be　completely　suppressed　in　the　light-induced　carbonylative　reaction,　the　use　of　photocatalytic　decomposition　of　DMF　to　in-situ　generate　CO　as　a　self-supplied　CO　source　still　shows　prospect　in　the　synthesis　of　diaryl　ketone　and　represents　a　new　and　promising　strategy　for　realizations　of　carbonylative　reactions.　©　2017　Elsevier　B.V.