Iron oxide biochar prepared from blue-green algae in Taihu Lake as raw material, preparation method of iron oxide biochar and application of iron oxide biochar in water treatment

The invention discloses iron oxide biochar with blue-green algae in Taihu Lake as a raw material, a preparation method of the iron oxide biochar and application of the iron oxide biochar in water treatment, and belongs to the technical field of water treatment. According to the method for preparing the iron oxide biochar by taking the Taihu Lake blue-green algae as the raw material, the Taihu Lake blue-green algae as the raw material is subjected to carbonization treatment to form biochar, the biochar is mixed with water, and the iron oxide biochar is prepared by utilizing water vapor activation. The prepared iron oxide biochar has the advantages of large specific surface area, high catalytic performance, multiple active sites, low transition metal ion leaching rate and the like, and the removal rate of ofloxacin can reach 100%. The method for preparing the iron oxide biochar has the characteristics of simple process, easily available raw materials, simplicity and convenience in operation, environment friendl