Cobalt FunctionalizedOrderedMesoporous Carbon as EffectiveAdsorbent forRemoval ofOrganic Pollutants fromAqueousMedia

Abstract

Ordered mesoporous carbon CMK-3 (OMC) have been synthesized using mesoporous SBA-<br />15 silica as template and modified with cobalt carbonate. Morphologies and surface texturing of materials were<br />characterized by X-Ray diffraction (XRD), Scanning Electron Microscopy (SEM) and N2 adsorption-desorption<br />isotherms. The cobalt modified ordered mesoporous carbon were found to have a surface area of 490.06m2/g<br />and pore volume of 0.42cm3/g. The adsorption behavior of 1, 10-Phenanthroline (OP) and 2, 2'-bipyridine<br />(BP) on cobalt modified ordered mesoporous carbon (Co+2-OMC) were studied in aqueous system. The<br />parameter such as temperature, contact time and initial OP and BP concentrations was investigated. Batch<br />adsorption studies demonstrate that the cobalt containing CMK-3 has significant capacity for adsorption of<br />OP and BP from aqueous solution. The adsorption processes of OP and BP are tested with langmuir and<br />freundlich isotherm models. According to the langmuir isotherms, the maximum adsorption capacities of OP<br />and BP on Co+2-OMC were 595 and 500 mg/g, respectively.