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> The elimination of methyl tert-butyl ether (MTBE) from water resources remains a main environmental concern. In the present study, photo-assissted process for removal of MTBE was examined in the solutions containing C-N-TiO₂ nanoparticles under UV irradiation in the batch mode.<br> <strong>Methods:</strong> The effects of operational factors such as pH, initial catalyst concentration, and initial MTBE concentration on MTBE removal was investigated.<br> <strong>Results:</strong> The optimum degradation condition for MTBE was obtained at pH 7, catalyst load of 100 mg/L, air flow rate = 0.1 L/min and C₀ = 5 mg/L with 73 percent degradation of MTBE at 60 min. In addition, Analytical profiles on MTBE removal were based on the first-order kinetics model. However, the removal rate decreased by increasing initial concentration of MTBE.<br> Conclusion: The findings showed that UV/C-N-TiO₂ system is an efficient method for MTBE degradation from aqueous solution.</span></span></div> <br> &nbsp; MTBE removal, Nano C-N-TiO2, Photocatalysis, UV light, 60 64 http://jhehp.zums.ac.ir/browse.php?a_code=A-10-43-4&slc_lang=en&sid=1 Tohid Soltani soltanitohid071@gmail.com 100319475328460011162 100319475328460011162 No Department of Environmental Health Engineering, Zanjan University of Medical Sciences, Zanjan, Iran. Ali Assadi assadi@zums.ac.ir 100319475328460011163 100319475328460011163 Yes Department of Environmental Health Engineering, Zanjan University of Medical Sciences, Zanjan, Iran. Foad Kazemi kazemi_f@iasbs.ac.ir 100319475328460011164 100319475328460011164 No Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran. Mohammad Reza Mehrasbi zmehr@zums.ac.ir 100319475328460011165 100319475328460011165 No Department of Environmental Health Engineering, Zanjan University of Medical Sciences, Zanjan, Iran.