Investigation of Doxycycline Antibiotics Removal from Aqueous Solution using functionalized graphene nano oxide
Subject Areas : The Application of Chemistry in Environment
Keywords: Adsorption, Zinc Oxide, Doxycycline, Graphene Nanooxide,
Abstract :
In this study, The composites based on nano oxide graphene (GO) functionalized with zinc oxide, were prepared for the removal of doxycycline antibiotics. A major concern about pharmaceutical pollution is the presence of antibiotics in water resources through their release into sewers where they cause bacterial resistance and enhanced drug-resistance in human-borne pathogens and growing microbial populations in the environment. Additionally, the adsorption process parameters of pH (3-10), initial concentration of doxycycline (25-100 mg/L), the concentration of nano-adsorbent (GO/ZnO)( 100,150,200 mg / 250 ml solution) and contact time (30-90 min) were investigated. Based on the results, an optimum pH of 8, a contact time of 60 minutes, T = 25 ± 2 °C, [GO-ZnO] = 200 mg / 250 ml and [DOX.] = 50mg/L were the optimum conditions to achieve a doxycycline removal efficiency of 93%. The GO/ZnO may thus be claimed to be highly capable of removing doxycycline from aqueous solutions.
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