Kinetics and Equilibrium Study of Resorcinol Adsorption onto Surface Modified Ordered Mesoporous Carbon

摘要

Ordered Mesoporous Carbon (OMC), a relatively new member of carbonaceous family, has been able to attract substantial attention due to its unique attributes such as high BET surface area, narrow pore size distribution, large pore volume and thermal stability. A novel ordered mesoporous carbon was synthesized using COK-19 silica scaffold for the first time and doped with cerium (HI) chloride for the removal of resorcinol from aqueous solution. Traditional multistage technique was employed for synthesizing OMC. Nitrogen Adsorption-Desorption Isotherms, Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Fourier Transformed Infrared Spectroscopy (FTiR), Energy Dispersive X-ray Spectroscopy (EDS) were employed to characterize the modified OMCs. Highest removal efficiency was achieved for 5% wt. cerium loading followed by a reduction in the removal efficiency for 7.5% and 10% wt. cerium loading. Results from adsorption kinetics and isotherms suggest that Pseudo-Second-Order Model and Langmuir Isotherm well described the experimental data. Adsorption capacity increased by 76.8% with increased cerium content from 0 to 5%.