Abstract :

In the current study, a dinitrodiphenyldiquinoline derivative (DNDPDQ) is synthesized, purified, characterized, and its adsorptive ability examined for the first time. Twelve common polyaromatic hydrocarbons (PAHs) are chosen as potential adsorbates for removal by using DNDPDQ as an adsorbent surface. The adsorptive capacity and the efficiency of removal depends on several variables such as adsorbent dose, PAH initial concentration, pH, and contact time. This paper summarizes the adsorbent parameters and the kinetic models that can optimize and describe the adsorption process used to treat aqueous solutions of PAHs.Experimentally, the optimum adsorbent dose, the initial concentration, and contact time are found to be 0.1 gm, 1 ppm, and 60 minutes, respectively. Mathematical treatment of the adsorption data reveals that the adsorption of all the PAHs by DNDPDQ adopted a pseudo second-order adsorption model. As a result, the DNDPDQ derivative is found to be a very good adsorbent surface for several hazardous organic pollutants such as PAHs.