Integrated　membranes　with　filtration　and　photocatalytic　functions　have　been　considered　as　an　effective　strategy　for　purifying　flowing　wastewater,　but　the　design　and　preparation　of　high-efficiency　and　low-cost　membranes　is　still　of　great　urgency.　Herein,　we　report　efficient　recyclable　BiOBrxI1-x　fibrous　filter　membranous　photocatalyst　prepared　through　the　in-situ　growth　of　BiOBrxI1-x　solid-solutions　with　tunable　band-gaps　on　carbon　fiber　cloth　(CFC).　The　fabrication　was　performed　via　a　facile　dipping-solvothermal　synthesis　of　BiOBrxI1-x　solid-solutions　nanoplates　on　CFC　with　different　I/Br　ratios　in　the　precursor　solution.　With　the　increase　of　I/Br　ratio　from　0　to　4,　CFC/BiOBrxI1-x　solid-solutions　exhibit　a　re-shifted　in　the　photoabsorption　edge　from　420　to　620　nm,　leading　to　the　tuning　of　the　band-gap　from　2.49　to　1.81　eV.　Under　visible　light　illumination　for　120　min,　CFC/BiOBrxI1-x　solid-solutions　have　the　tuned　photocatalytic　activity,　where　CFC/BiOBr0.8I0.2　shows　the　highest　degradation　efficiency　toward　various　antibiotics　(such　as　levofloxacin　(LVFX,　94.1%),　ciprofloxacin　(CIP,　94.5%),　and　tetracycline　(TC,　98.9%))　as　well　as　dyes　(such　as　acid　orange　7　(AO7,　91.4%).　Especially,　when　CFC/BiOBr0.8I0.2　is　used　as　a　flexible　membrane　to　a　construct　multi-grade　unit　for　treating　the　flowing　sewage,　the　degradation　efficiency　of　LVFX　goes　up　from　3.9%　in　the　first　grade　to　96.2%　in　the　tenth　grade.　Therefore,　the　present　CFC/BiOBr0.8I0.2　not　only　possesses　great　potential　as　a　flexible　membrane-shaped　photocatalyst　for　purifying　the　flowing　sewage　efficiently　but　also　provides　some　insights　for　developing　new　types　of　purifying　membranes　and　devices.　©　2023　Elsevier　Ltd