Heteropoly acid zeolite coated rare earth-organic framework material and its preparation method

One coating heteropoly acids zeolite type rare earth - organic framework material of the formula: [Dy48 (NO3) 48 (bpdc) 48 (PW12O40) (TBA) 3] · 140H2O, wherein 2,2'-bipyridine bpdc 6,6'-dicarboxylic acid, TBA is tetrabutylammonium hydroxide; preparation of the material is a mixed solvent of chloroform and methanol was added to a mixture of dysprosium nitrate, manganese chloride, H2bpdc, H3PW12O40 of TBA and, at 80 ° C for 48h , filtered, washed to obtain; the photocatalyst material may be used for the reaction of the degradation of methylene blue. Advantages of the invention: the first material is a structure having a coating of rho zeolite type rare earth heteropoly acids - organic framework material, having a good effect on photodegradation of methylene blue, and simple preparation process, the photocatalytic polyoxometalate is large-scale purification of industrial waste water application provides a theoretical basis.