Cibacron Blue F3GA Bağlı mPHEMA ile Sulu Sistemden Fenol ve Nitrofenollerin Uzaklaştırılması

Abstract

Phenol and nitrophenols are toxic to other organisms in aqueous media even at very low concentrations. In this work, the removal of phenols and nitrophenols by using Cibacron Blue F3GA attached of magnetic poly(2-hydroxyethylmethacrylate) as an adsorbent from the aqueous media was investigated. The adsorption phenomenon of the phenol and nitrophenols on adsorbent at different time ranges (15, 20, 45, 60, 90 and 120 minutes) was investigated to elucidate the equilibrium times with increasing phenol and nitrophenols concentration. The parameters such as pH (2-12), adsorbent dosage, adsorption time and initial concentration were studied. The maximum adsorption equilibrium time was found to be approximately 20 minutes. The amount of adsorbed substance on adsorbent was observed to decrease in the order of 4-nitrophenol> 3-nitrophenol> and 2-nitrophenol> phenol. The adsorbent was examined by using Fourier Transform Infra-Red, Scanning Electron Microscopy-Energy Dispersive X-ray techniques and Differential Thermal Analysis-Thermal Gravimetric Analysis Techniques before and after the adsorption. The adsorption process was observed to comply with the Langmuir isotherm. It was possible to use again and again Cibacron Blue F3GA-attached mPHEMA beads without any significant decreases in their adsorption capacities.