Recently,　photocatalysis　combined　peroxydisulfate　(PDS)　activation　as　a　novel　advanced　oxidation　processes　(AOPs)　was　applied　to　remove　pharmaceuticals　and　personal　care　products　(PPCPs)　in　waterbody.　Under　visible　light　irradiation,　photocatalysts,　such　as　graphitic　carbon　nitride　(g-C3N4,　CN),　could　generated　holes　and　electrons　for　both　organic　oxidation　and　PDS　activation.　However,　it　exhibits　the　drawbacks　of　low　organics　removal　rate,　high　electron-hole　recombination　rate　and　low　activation　efficiency　of　PDS.　In　this　study,　amorphous　iron　oxyhydroxide　(FeOOH)　was　intercalated　into　the　surface　of　the　g-C3N4　nanosheets　(CNNS)　to　form　a　Z-scheme　heterojunction　to　solve　these　problems.　Electrochemical　impedance　spectroscopy　(EIS)　and　photoluminescence　spectrum　(PL)　tests　proved　the　enhancement　of　the　charge　separation　and　migration　capability　of　FeOOH/CNNS.　The　density　functional　theory　(DFT)　supported　the　constructive　role　of　the　Z-type　heterojunction　between　FeOOH　and　CNNS　in　promoting　photocarrier　transfer　and　facilitating　more　effective　PDS　activation　reactions.　The　removal　rate　of　tetracycline　(TC)　achieved　98.8　%　within　80　min　by　FeOOH/CNNS　coupled　PDS　under　visible　light　(FeOOH/CNNS-PDS/Vis)　system.　Finally,　electron　spin　resonance　(ESR)　approved　the　pivotal　role　of　(OH)-O-center　dot,　SO4　center　dot-,　and　O-center　dot(2)-　during　the　process.