Abstract
In this research, MgO/C3N4 nanocomposite was synthesized via facile and economical method and was characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, Field emission scanning electron microscopy, Energy-dispersive X-ray spectroscopy and Dot mapping. Then efficiency of synthesized MgO/C3N4 nanocomposite was investigated in removal of Reactive Orange 16 (RO16) dye from aqueous solutions under visible light in a batch system. Results obtained from photocatalytic removal showed that removal percentage of RO16 dye decreases by increasing RO16 dye concentration and increasing MgO/C3N4 nanocomposite dosage. The optimum pH for the removal of RO16 was pH 6. As results, maximum removal of RO16 dye was obtained about 82% in following conditions: Visible light radiation = 39.6 w, RO16 dye concentration = 2 mg/L, MgO/C3N4 nanocomposite, dosage = 0.2 g/500 mL, pH 6, time = 30 min. Accordingly, it can be concluded that the synthesized MgO/C3N4 nanocomposite can be used as an efficient photocatalyst under visible light for the removal of RO16 dye.
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