Preparation method of Mn1Cd3S4 photocatalyst

The invention discloses a preparation method of a Mn1Cd3S4 photocatalyst, which comprises the following steps: 1. weighing 2 parts by weight of anhydrous manganese chloride, 9 parts by weight of cadmium nitrate, 3.5 parts by weight of thioacetamide and 40 parts by weight of distilled water, and sequentially putting the raw materials into a reaction kettle to perform heating reaction for 8-12 hoursto obtain a pre-reaction solution; 2, adding 0.5 part by weight of a coating treatment agent into the pre-reaction solution obtained in the step 1, uniformly stirring the mixture, and continuously heating the mixture to react for 12-18 hours to obtain a reaction solution; 3, filtering the reaction solution obtained in the step 2, putting filter residues into an oven for heating and drying the material, and then crushing and sieving the material. The preparation process is simple, the obtained product is good in stability and large in specific surface area, and industrial production and application are facilitated. 本发