A　polymeric　Fc-CO-NH-C3N4　(Fc-CN)　material　was　synthesized　by　amidation　reaction　of　ferrocenecarboxylic　acid　(Fc-COOH)　with　NH2　groups　on　the　surface　of　mesoporous　graphitic　carbon　nitride　(MCN).　The　properties　of　the　as-synthesized　samples　were　characterized　by　X-ray　diffraction,　Fourier　transform　infrared　spectroscopy,　UV-Vis　diffuse　reflectance　spectra,　N-2　adsorption-desorption　isotherm,　photoluminescence　spectroscopy,　transmission　electron　microscopy,　electron　paramagnetic　resonance,　(photo)　electrochemical　measurement　and　X-ray　photoelectron　spectroscopy.　The　resultant　catalysts　were　investigated　as　heterogeneous　catalysts　for　the　selective　oxidation　of　benzene　to　phenol　using　H2O2　as　a　green　oxidant　under　visible　light　irradiation.　The　results　reveal　that　Fc-modified　samples　can　not　only　extend　the　visible　light　absorption,　but　also　accelerate　the　bulk-to-surface　charge　transfer　and　separation　via　surface　dyadic　structures,　both　of　which　are　favorable　for　phenol　production　from　benzene　photocatalytic　hydroxylation　with　H2O2.　Under　the　optimal　conditions,　up　to　16.9　%　phenol　yield　(based　on　benzene)　is　obtained　by　Fc-CN/(1.5)-5　sample,　and　the　corresponding　Fe　content　is　about　0.64　wt%.　Furthermore,　after　the　second　run,　no　significant　decrease　of　the　activity　(in　term　of　TOF)　and　the　selectivity　is　found　in　Fc-CN/(1.0)-5　sample.　Combined　with　the　experimental　results　and　Fenton-chemistry,　a　possible　photocatalytic　reaction　mechanism　on　the　hydroxylation　of　benzene　to　phenol　at　neutral　medium　with　visible　light　is　proposed.