UV degradation of naproxen adsorbed on graphite oxide

Abstract

In the study, it was aimed to remove naproxen sodium (NPX) adsorbed on graphite oxide pro-duced from commercial graphite by degrading it under UV effect. Temperature (25 degrees C-50 degrees C), adsorbent amount (1-3 g/50 mL), pH (3-9), contact time (15-1440 min) and initial concentration (20-150 ppm) were selected as parameters. The scanning electron microscopy morphological images, X-ray diffraction mineralogical content, Fourier-transform infrared spectroscopy func-tional group analysis, Brunauer-Emmett-Teller surface areas of adsorbents were determined. It was observed that the NPX removal efficiency of graphite (11.56%) was much lower (73.29%) than graphite oxide (GRO). Determination of the desorption% of UV degradation studies of adsorbed GRO's at the end of 1, 2 and 3 h as 47.5%, 34.06% and 31.59% respectively, proved that the UV degradation is effective in the removal of NPX attached to the GRO surface. As a result, it was observed that UV degradation was effective in removing NPX from the GRO surface.