Investigating the efficiency of graphene oxide in the adsorption of 2-chlorophenol from aqueous solutions as an environmental pollutant

The purpose of the present research was to evaluate the potential of graphene oxide as an adsorbent for removing 2-chlorophenol (2-CP) from aqueous solutions. For this purpose, the effects of various parameters, including the initial concentration of 2-CP, contact time, initial pH, and adsorbent dosage, were examined. The results showed that 2-CP adsorption reaches equilibrium within 50 min. An increase in 2-CP concentration and pH leads to a decrease in 2-CP removal efficiency. Additionally, increasing the adsorbent dosage initially enhanced the removal percentage of 2-CP, but further increases led to a decrease. Based on the findings, 0.3 g/L of graphene oxide can remove 78.76% of 2-CP at an initial concentration of 100 mg/L and pH of 2. Thus, graphene oxide is an effective adsorbent for removing 2-CP as a toxic compound from aqueous solutions.