Developing　an　efficient　and　stable　monolithic　catalyst　is　the　key　to　remove　organic　pollutants　from　water.　Herein,　Cu　doped　CoCO3　was　successfully　loaded　on　metal　foam　nickel　(NF)　via　a　solvothermal　process　for　the　first　time,　which　exhibited　excellent　performance　for　tetracycline　(TTC)　elimination.　The　effects　of　experimental　conditions,　including　the　initial　solution　pH　and　coexisting　ions　were　studied　in　detail.　The　removal　efficiency　of　TTC　(50　mg/L)　was　85.37%.　The　porous　NF　material　speeded　up　the　transfer　of　electrons　in　the　process　of　catalytic　degradation.　Notably,　the　results　of　quenching　experiments　show　that　both　free　radicals　and　non-free　radicals　have　a　synergistic　effect　in　the　degradation　of　TTC.　Porous　NF　has　good　mechanical　strength.　The　degradation　rate　of　the　catalyst　was　77.52%　after　three　cycles.　The　reaction　mechanism　of　degradation　of　TTC　in　Cu-CoCO3@NF/PS　system　with　persulfate　is　proposed　to　be　due　to　both　free　radicals,　center　dot　OH　and　SO4　center　dot-　and　non-free　radicals　of　O-2(1).　Moreover,　the　system　has　long-term　oxidation　performance.