Method for photodegradation of methylene blue by using basic copper oxalate

The invention discloses a method for photodegradation of methylene blue by using basic copper oxalate, and the method comprises the following steps: (1) dropwisely adding a 0.7 mol/L KOH and K2C2O2 mixed solution into a 60DEG C and 3.5 mol/L CuCl2 solution, continuously stirring, keeping the temperature, reacting for a period of time, centrifuging the sample, and drying; (2) weighing 0.01 g of thebasic copper oxalate, uniformly dispersing the basic copper oxalate in a methylene blue solution, and dropwise adding 1mL of H2O2; and (3) carrying out dark treatment for 30 min, then carrying out irradiation degradation, and calculating the degradation rate according to eta = (1-Ai/A0) * 100% after 60 min. According to the method, the methylene blue is degraded by utilizing the basic copper oxalate, the catalyst is simple to prepare and high in yield, the methylene blue can be effectively degraded by light, and a relatively good degradation effect on the methylene blue solution with relatively high concentration is