Surface Functionalization of Ordered Mesoporous Carbon by Immobilization of Diamine for Cobalt-Ion Adsorption

Highly ordered mesoporous carbon(CMK-3) was fabricated for the adsorption of cobalt from aqueous solutions. With the high surface area of 1112.7m(2)/g and pore size of 17.2 nm, its abundant mesopores were benefit for providing channels for liquid propagate. In order to improve the adsorption properties, CMK-3 was modified by hydroxylation and amination. Fourier transform infrared (FTIR) spectroscopy can be seen that the amino group was successfully grafted onto the CMK-3 with highly ordered mesoporous structure. The functionalized ordered mesoporous carbon (CMK-3-EDA), CMK-3 and CMK-3-OX were used as absents for the adsorption of Co(II) from aqueous solution. The results showed that CMK-3-EDA were more twice effective in adsorption of Co(II) compared to CMK-3, which indicated that CMK-3-EDA had great potential for the adsorption of Co(II).