| abstract |
The invention belongs to the technical field of wastewater treatment, and particularly relates to a photocatalyst for treating organic dye wastewater, and a preparation method and application thereof. The photocatalyst is a composite photocatalyst of cerium and ytterbium codoped lanthanum manganate and silver oxide, and has a chemical formula of cerium and ytterbium codoped lanthanum manganate La 1‑x‑y Ce x Yb y MnO 3 /Ag 2 O, wherein x is 0.05-0.15, y is 0.05-0.15, and silver oxide, cerium and ytterbium are codopedThe mass ratio of lanthanum manganate to lanthanum manganate is 1: 10 to 20. Cerium and ytterbium codoped lanthanum manganate is prepared by a sol-gel method, and silver oxide is loaded by a photoreduction method, so that the preparation method is simple. And the synergistic effect of cerium and ytterbium and the synergistic effect of silver oxide supported by a photoreduction method are utilized, so that the photocatalytic performance of the lanthanum manganate photocatalyst is further improved, the lanthanum manganate photocatalyst has good photodegradation capability on organic dyes in organic wastewater, and the lanthanum manganate is an ideal material for treating dye wastewater. |