REMOVAL OF RHODAMINE B USING MESOPOROUS CACBON MATERIALS WITH SBA-15 AS TEMPLATE

Abstract

The objective of this work is to evaluate the Rhodamine B (RhB) adsorption capacity of mesoporous carbon material (OMC (SBA-15)) based on the structure of SBA-15 material. Synthetic material has the advantages of carbon materials, which have good organic adsorption capacity, and mesoporous materials, which have large pore sizes. The characteristic methods (X-ray diffraction method, transmission electron microscopy method, nitrogen adsorption-desorption method, etc.) show that the obtained material has a mesoporous structure with an average pore size of 4.5 nm and a surface area of 1126 m²/g. The synthesized material OMC (SBA-15) adsorbed RhB well; the adsorption capacity increased with time and concentration. The maximum adsorption capacity of RhB on OMC (SBA-15) material, calculated according to the Langmuir adsorption isotherm model, is 400 mg/g. The adsorption process is consistent with the Langmuir isotherm model, and the kinetics are consistent with the apparent second-order kinetics equation.