In-situ self-regenerating adsorbent and preparation method thereof

The invention belongs to the technical field of adsorption purification, and provides an in-situ self-regenerating adsorbent and a preparation method thereof. The in-situ self-regenerating adsorbent is prepared in the mode that pyrophanite and lignite-based active coke are taken as raw materials, the pyrophanite is directly loaded onto the lignite-based active coke through an impregnation method,or the pyrophanite is directly formed on the lignite-based active coke. According to the novel in-situ self-regenerating adsorbent prepared through the preparation method, the adsorption function of the lignite-based active coke is inherited, in-situ self-regenerating can further be achieved under the effect of visible light, and the continuous purification and repair effects are achieved; and thein-situ self-regenerating adsorbent can treat refractory organic pollutants containing biotoxic substances and water bodies rich in nutrients, heavy metal and the like and needing to be purified. 本发明属于吸附净化技术领域，提供种原位自再生吸附剂及其制备