Comprehensive study of mesoporous carbon functionalized with carboxylate groups and magnetic nanoparticles as a promising adsorbent

► Ordered mesoporous carbon functionalized with carboxylate groups and magnetic nanoparticles. ► The functionalizations of mesoporous carbon material lead to an enhanced adsorption performance. ► Carboxylic functional groups result in an extremely rapid adsorption rate. ► Magnetic nanoparticles endow the mesoporous carbon with an easy magnetically separable process.