| abstract |
The invention provides an α-Fe 2 O 3 /LaFeO 3 /g-C 3 N 4 /MXene material and a preparation method and application thereof, belonging to the technical field of photocatalysis. The invention combines two narrow band gap semiconductors (LaFeO 3 and α-Fe 2 O 3 ) with one wide band gap semiconductor (g-C 3 N 4 ) to form a double heterojunction, which can not only broaden the response range of sunlight, but also It can promote the separation of photo-induced electrons and holes and improve the redox ability. At the same time, the metal-like MXene material is compounded on the surface of the material, which not only increases the conductivity of the material, but also separates photogenerated carriers, which greatly improves the photocatalysis of the whole system. performance. As a photocatalyst for the treatment of polluted wastewater, it has excellent ability to remove organic pollutants and heavy metal ions, such as methylene blue, rhodamine B, tetracycline hydrochloride and heavy metal hexavalent chromium. |