Preparation method of Fenton-like catalyst

The invention discloses a preparation method of a Fenton-like catalyst, and belongs to the field of heavy metal wastewater resource utilization. The preparation method of the Fenton-like catalyst comprises the following steps: S1, putting a prepared porous calcium silicate adsorbent into heavy metal wastewater for adsorption, and when the pH value is 5-10.5, adding sulfide for primary vulcanization; and S2, collecting the primarily vulcanized porous calcium silicate adsorbent, adding the primarily vulcanized porous calcium silicate adsorbent into a sulfide solution, carrying out secondary vulcanization, filtering and separating a product, washing, and drying to obtain the Fenton-like catalyst. The method is simple in operation process and low in cost, and resource utilization of heavy metals can be realized while the heavy metal wastewater is purified. 本发明公开一种类芬顿催化剂的制备方法，属于重金属废水资源化利用领域。所述类芬顿催化剂的制备方法，包括以下步骤：S1、将制备好的多孔硅酸钙吸附剂投入到重金属废水中进行吸附，待pH为5-10.5时投加硫化物进行初步硫化；S2、收集初步硫化后的多孔硅酸钙吸附剂，加入到硫化物溶液中进行二次硫化，过滤分离产物，洗涤，烘干，得到