Preparation Method of Mg-Fe Layered Double Hydroxide Composite Magnetic Hydrothermal Carbon

Using corn straw as the raw material, iron-based solution A containing straw powder and Mg-Fe mixed solution B are first prepared. After mixing, a hydrothermal reaction is carried out at 220 °C for 20 hours, and the composite material is obtained through washing, suction filtration, drying and grinding.

Combining the advantages of magnetic hydrothermal carbon and Mg-Fe layered double hydroxide, this material features uniform element distribution and abundant active functional groups. It can efficiently activate persulfate and exhibits an excellent degradation effect on atrazine, along with a wide pH adaptability and good reusability. With low-cost raw materials and a simple preparation process, it is suitable for the degradation of organic pollutants in water bodies.