Low-temperature denitrated CeO2-NaX molecular sieve catalyst and preparation method thereof

The invention discloses a low-temperature denitrated CeO2-NaX molecular sieve catalyst and a preparation method thereof. The low-temperature denitrated CeO2-NaX molecular sieve catalyst takes a NaX molecular sieve to load CeO2; and the mass ratio of the CeO2 to the NaX molecular sieve is (1-15):100. The preparation method comprises the following steps of: utilizing an equal volume immersing method to immerse the NaX molecular sieve into a soluble cerium salt solution and agitating and heating at 20-80 DEG C for 1-2 hours; then drying at 80-110 DEG C for 6-12 hours; roasting in an N2 atmosphere by controlling the temperature at 600 DEG C for 3-12 hours; and then cooling to a room temperature to obtain the low-temperature denitrated CeO2-NaX molecular sieve catalyst. The low-temperature denitrated CeO2-NaX molecular sieve catalyst disclosed by the invention has the advantages of higher catalytic performance, high-temperature heat stability, mechanism strength and high-temperature oxidization performance, and has the characteristics of simple preparation process, low production cost and suitableness for industrial production.