Congo　red　(CR)　is　documented　as　a　typical　azo　dye　compound　that　is　widely　used　for　industrial　activities　such　as　papermaking,　textiles,　leather　and　additives　production,　making　it　a　main　component　of　COD　contaminants　in　industrial　wastewaters.　Excessive　releases　of　CR　have　resulted　in　adverse　impacts　on　water　environments　and　ecological　systems　due　to　its　non-biodegradable,　toxic　and　carcinogenic　properties.　Therefore,　the　removal　of　CR　from　water　environments　is　of　important　for　wastewater　treatment.　Previous　studies　have　proved　that　metal-organic　frameworks　(MOFs)　were　feasible　for　CR　adsorption,　but　less　stable　in　water　environments.　Several　functionalized　materials　have　therefore　been　used　to　produce　MOF-derived　composite　material　for　better　performance.　To　simplify　the　synthesis　processes　and　reduce　the　energy　consumption,　an　ionic　liquid　(IL)　was　used　in　this　study　for　the　synthesis　of　[BMIM][PF6]/ZIF-8　(BP/Z)　composite　material.　The　morphological　structure　of　this　material　remained　stable　after　the　incorporation　of　IL.　The　equilibrium　time　of　CR　adsorption　was　90　​min　with　a　maximum　adsorption　capacity　of　1463　​mg/g.　Isotherm　and　kinetic　studies　revealed　that　the　adsorption　process　was　better　described　by　Langmuir　and　pseudo-second-order　model.　Our　results　also　presented　that　the　IL/MOF　composite　material　can　be　used　within　pH　5　and　6　with　the　presence　of　Na+,　K+,　Mg2+,　Ca2+,　Cl−　and　SO42−.　It　was　also　proved　that　the　novel　IL/MOF　composites　in　this　study　have　great　potential　to　adsorb　and　remove　organic　dyes　from　water.　©　2023　The　Authors