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Ordered mesoporous materials, because of its specific high surface area, a large pore size and uniform pore size distribution, reflects its more obvious advantages in the adsorption. By regulating the pore size distribution of mesoporous carbon, not only can expand the range of selective adsorption of ordered mesoporous carbon for heavy metal ions, organic molecules and functional groups, but also provide limited space for ions or molecules which loaded into the aperture of mesoporous carbon and it is conducive to diffuse in the pore canals and adsorptive separation for pollution and solvent molecules. The study describes the adsorption behavior of dyeing wastewater such as rhodamine B from aqueous solution using ordered mesoporous carbon in different pore size distribution. Ordeded mesoporous carbon was synthesized with the evaporation induced self-assembly method in different proportion of template agent (F127) and phenolic resin and employed to evaluate the effects of initial concentration, contact time, pH and temperature on the removal of rhodamine B in batch experiments. In addition, because of the fluorescent effect of rhodamine B, this study used laser scanning confocal microscopy (LSCM) to observe the pollutants' adsorption conditions under different apertures of ordered mesoporous carbon. The experimental results indicated the ordered mesoporous carbon in different pore size distribution showed significant differences in the adsorption of rhodamine B and it was provided with an excellent selective adsorption.

Synthesis, characterization and selective adsorption of ordered mesoporous carbon in different pore size distribution