【摘要】 采用浸渍法将中间体rGO-CeO₂NPs与杂多酸K₈[Ni（H₂O）W₁₁MnO₃₉]成功合成三元复合材料K₈[Ni（H₂O）W₁₁MnO₃₉]@rGO-CeO₂NPs,通过XRD、FT-IR、UV-Vis、XPS、SEM-EDS、N₂吸附-脱附等表征其结构与性能,并且利用K₈[Ni（H₂O）W₁₁MnO₃₉]@rGO-CeO₂NPs三元复合材料作为催化剂,对龙胆紫进行光催化降解实验。结果表明:在pH 4、50 mL 5 mg/L龙胆紫溶液中加入0.20g K₈[Ni（H₂O）W₁₁MnO₃₉]@rGO-CeO₂NPs三元复合材料为优化光降解条件,降解率可达94.89%。进行3次重复回收实验,降解率仍能达到70%以上。更多还原

【Abstract】 The ternary composite K₈[Ni（H₂O）W₁₁MnO₃₉]@rGO-CeO₂NPs was successfully prepared by the impregnation method with intermediate rGO-CeO₂NPs and heteropoly acid K₈[Ni（H₂O）W₁₁MnO₃₉]. Its structure and properties were characterized by XRD, FT-IR, UV-Vis, XPS, SEM-EDS, N₂ adsorption-desorption, etc,and K₈[Ni（H₂O）W₁₁MnO₃₉]@rGO-CeO₂NPs ternary composite material was used as catalyst for the photocatalytic degradation of gentian violet. The results showed that 0.20 g of K₈[Ni（H₂O）W₁₁MnO₃₉]@rGO-CeO₂NPs composite material were added to 50 mL 5 mg/L gentian violet solution at pH 4 as the optimal photodegradation conditions for the experiment, the decolorization rate could reach 94.89%. After three repeated recovery experiments, the degradation rate could still reach more than 70%.更多还原