Photocatalytic degradation of Orange II (OII) dye has been carried out with commercially available materials, namely sodium Y zeolite (NaY), ammonium Y zeolite (NH₄Y), and reduced graphene oxide (RGO). The catalysts were characterized by N₂ adsorption at −196 °C, pH at the point of zero charge (pH_pzc), and ultraviolet/visible (UV/Vis) diffuse reflectance absorbance. The initial screening of processes like adsorption, oxidation with hydrogen peroxide alone, direct photolysis, combination of H₂O₂ with the catalyst, and/or with UV/Vis radiation has been done. For the process with better performance (radiation combined with the oxidant and using the materials as photocatalysts), a parametric study was carried out to evaluate the effect of pH, H₂O₂ concentration, catalyst dose, radiation intensity, and radiation type (UV/Vis or visible radiation) in OII degradation and mineralization.

中文翻译：

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光催化湿式过氧化物通过还原的氧化石墨烯和沸石辅助降解橙色II染料

Orange II（OII）染料的光催化降解已通过可商购的材料进行，即钠Y沸石（NaY），铵Y沸石（NH ₄ Y）和还原型氧化石墨烯（RGO）。催化剂的特征是在-196°C的N ₂吸附，零电荷点的pH（pH _pzc）和紫外/可见（UV / Vis）漫反射吸收率。初步筛选过程，如吸附，仅用过氧化氢氧化，直接光解，H ₂ O _2结合用催化剂和/或用UV / Vis辐射已经完成。对于性能更好的过程（辐射与氧化剂结合并使用该材料作为光催化剂），进行了参数研究，以评估pH，H ₂ O ₂浓度，催化剂剂量，辐射强度和辐射类型（UV）的影响/ Vis或可见辐射）导致OII降解和矿化。