Synthesies of nanomesoporous carbons for removal of Reactive Yellow 160 from aqueous solutions

In this study, The magnetite mesoscopically ordered nanomesoporous carbon nanoparticles (Fe3O4@SiO2-CMK-8 NPs) as CMK-8 has been successfully synthesized by carbonizing sucrose inside the pores of the KIT-6 mesoporous silica. The nanomesoporous particles were characterized by XRD, FT-IR, SEM and TEM instruments. The effect of various experimental parameters on the dye removal efficiency was studied using Taguchi experimental design method before proceeding with the real samples. According to the experimental results, about 90.0 % of Reactive Yellow-160 was removed from aqueous solutions at the adsorbent amount of 0.06 g at pH = 3 and ionic strength = 0.05 in 10 min. The kinetics and equilibrium adsorptions was well-described by the pseudo-second-order kinetic (R2 = 0.999) and Langmuir model with the maximum absorption capacity of 62.893 mg g-1, respectively. Furthermore, the Fe3O4@SiO2-CMK-8 NPs could be simply recovered by external magnet and it exhibited recyclability and reusability for subsequent six runs.