Developing　efficient　photocatalysts　is　critical　for　degradation　of　organic　pollutants.　Herein,　a　highly　efficient　heterojunction　photocatalyst　(m-Bi2O4/Bi2O4−x/BiOCl)　was　synthesized　by　a　hydrothermal　method.　Through　changing　the　added　volume　of　concentrated　HCl　acid,　the　ternary　composite　based　on　BiOCl　nanosheets　matrix　on　which　the　m-Bi2O4　micro-rods　and　the　Bi2O4−x　nanospheres　are　firmly　attached.　The　prepared　m-Bi2O4/Bi2O4−x/BiOCl　showed　a　favorable　degradation　rate　and　mineralization　ability　towards　Bisphenol　A　(BPA)　and　Ciprofloxacin　(CIP)　under　visible　light　irradiation,　which　degraded　98.3%　of　BPA　in　30　min,　82.3%　of　CIP　in　80　min,　and　the　rate　constants　were　around　30.16　and　2.82　times　higher　than　that　of　pure　BiOCl,　respectively.　This　enhanced　photocatalytic　activity　of　m-Bi2O4/Bi2O4−x/BiOCl　composite　can　be　originated　from　the　improved　light　adsorption　range　and　the　synergistic　effect　of　type-II　and　the　Z-scheme　charge　transfer　on　the　interfaces　of　m-Bi2O4,　Bi2O4−x　and　BiOCl,　which　then　lead　to　an　accelerated　separation　and　migration　of　photo-generated　carriers.　Meanwhile,　the　photoluminescence　(PL)　test　and　photoelectrochemistry　(PEC)　test　provided　strong　evidence　for　the　construction　of　the　heterojunction.　Moreover,　the　repeatability　of　m-Bi2O4/Bi2O4−x/BiOCl　heterojunction　photocatalyst　was　also　investigated,　and　it　still　remained　90%　photocatalytic　activity　after　four　successive　cycles.　This　work　proposed　a　possible　photocatalytic　pathway　for　m-Bi2O4/Bi2O4−x/BiOCl,　which　would　open　up　a　new　avenue　for　water　environment　treatment　utilizing　ternary　photocatalysts.　©　2022　Elsevier　B.V.