Investigation and Optimization of Some Parameters Influencing Brilliant Green (Dye) Removal Using Activated Carbon

The present study evaluates the performance of activated carbon modified by silica nanoparticles (SiO₂) for remoing brilliant green dye from aqueous environments. At first, silica nanoparticles (SiO₂) was prepared as the adsorbent which was subsequently stabilized on active carbon. Then, the various parameters influencing the absorption process such as PH of the dye solution (1-10), adsorbent contact time (0.5-30 minutes), amount of the adsorbent (0.005-0.02 grams) and the initial concentration of the dye (10-40 milligrams/liter) were evaluated. After investigating the effect of the parameters influencing the absorption process, the optimum solution PH rate, optimum contact time, optimum adsorbent amount and optimum preliminary dye concentration were respectively obtained equal to 6, 18 minutes, 0.02g and 15mg/l; under the foresaid setup, the silica nanoparticles-modified active carbon adsorbent was found capable of removing more than 95% of the brilliant green dye. This is while the maximum capacity of the SiO₂ nanoparticle-modified active carbon’s absorption was also found above 250.0 milligram per gram of the adsorbent.