In　this　study,　lignin　sulfonate-based　mesoporous　materials　(LSMMs)　were　prepared　and　applied　for　removal　malachite　green　(MG)　from　aqueous　solution.　Lignin　sulfonate-g-poly　(acrylic　acid-r-acrylamide)　was　prepared　by　grafting　poly(acrylic　acid-r-acrylamide)　onto　a　lignin　sulfonate　molecule　followed　by　crosslinking.　N2　adsorption/desorption　indicated　that　the　corsslinked　lignin　sulfonate-g-poly(acrylic　acid-r-acrylamide)　were　mesoporous　materials.　The　batch　adsorption　experiments　of　MG　on　LSMMs　were　carried　out　to　evaluate　the　performance　of　the　LSMMs.　Results　revealed　that　the　maximum　percentage　adsorption　of　MG　on　the　LSMMs　is　more　than　that　of　MG　on　the　lignin　sulfonate-based　polymer　without　grafted　copolymer　with　a　maximum　difference　of　37%　in　the　same　adsorption　conditions.　pH,　adsorbent　dosage,　initial　MG　concentration　and　temperature　are　just　the　parameters　that　could　exhibit　breathing　effect　to　the　adsorption　process.　The　adsorption　kinetics　follows　a　pseudo-second-order　kinetics,　intra-particle　diffusion　is　not　the　only　rate-controlling　step　in　the　entire　adsorption　process,　and　the　equilibrium　adsorption　data　could　be　described　well　by　the　Langmuir　isotherm　equation.　The　adsorption　process　is　endothermic,　spontaneous　and　random.　LSMMs　can　be　used　as　low-cost　adsorbent　for　refractory　cationic　organic　dye　in　effluent.　©　2016　Elsevier　Ltd.　All　rights　reserved.