Method for degrading methylene blue by activating hydrogen peroxide with nano CuO/Fe3O4

The invention discloses a method for degrading methylene blue by activating hydrogen peroxide with nano CuO/Fe3O4. The optimal conditions for degrading 100mL of methylene blue solution with the concentration of 10mg/L are determined through a single factor variable experiment as follows: the addition amount of the catalyst is 0.20 g, the addition amount of H2O2 is 7.0 mL, the reaction temperature is 30 DEG C, the initial pH value of the reaction is 7, and the reaction time is 6 hours. Under the optimal condition, the degradation rate of methylene blue is up to 95% or above. The purity of all raw materials is not specially limited, and the raw materials are low in cost and easy to obtain. And the obtained nano CuO/Fe3O4 heterogeneous catalyst expands the pH range, has high degradation efficiency on methylene blue, and is stable in catalytic performance. The catalyst is easy to recycle, and secondary pollution is not easy to form. 本发明公开了一种纳米CuO/Fe3O4活化过氧化氢降解亚甲基蓝的方法。通过单因素变量实验确定了降解100mL浓度为10mg/L的亚甲基蓝溶液的最佳条件为：催化剂的