en Environmental Health, Sciences, and Engineering Environmental Health, Sciences, and Engineering پژوهشي Original Article <div style="text-align: justify;"><span style="font-size:14px;"><span style="font-family:times new roman;"><strong>Background:</strong> Phenolic compounds are an important group of pollutants in industrial wastewater, which must be treated before disposal into water resources. The present study aimed to use synthesized graphene oxide (SGO) to remove bisphenol A (BPA) from aqueous solutions.<br> <strong>Methods:</strong> Graphene oxide was synthesized using Hummers&#39; method, and BPA adsorption was assessed as a function of solution pH, contact time, adsorbent dosage, and initial BPA concentration using the batch method. Isotherms and kinetic evaluation of dye adsorption was performed using the equilibrium data.<br> <strong>Results:</strong> Adsorption was rapid and strongly dependent on pH and adsorbent dosage, reaching the peak at the pH of 7 and adsorbent dosage of 0.8 g/l. BPA removal efficiency at the initial concentration of 10 mg/l was 98.8 &plusmn; 0.62%. Analysis of the experimental isotherm data using the Langmuir-Freundlich and Temkin models indicated that the removal process followed the Langmuir isotherm, while the adsorption kinetics followed the pseudo-second-order kinetic model. The maximum adsorption capacity was calculated by Langmuir fitting and determined to be 58.12 &plusmn; 1.14 mg/g.<br> <strong>Conclusion:</strong> According to the results, SGO could be employed as an effective agent for the removal of BPA from aqueous solutions.</span></span></div> Graphene oxide, Adsorption, Kinetics, Bisphenol A 98 103 http://jhehp.zums.ac.ir/browse.php?a_code=A-10-65-4&slc_lang=en&sid=1 Davoud Balarak dbalarak2@gmail.com 10031947532846009724 10031947532846009724 Yes Department of Environmental Health, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Hossein Ansari 10031947532846009725 10031947532846009725 No Department of Environmental Health, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Mahdethe Dashtizadeh 10031947532846009726 10031947532846009726 No Department of Environmental Health, Student Research Committee, Zahedan University of Medical Sciences, Zahedan, Iran. Maryam Bazi 10031947532846009727 10031947532846009727 No Department of Environmental Health, Student Research Committee, Zahedan University of Medical Sciences, Zahedan, Iran.