| abstract |
The invention relates to a CaTiO 3 /CaO composite material and a preparation method and application thereof; the preparation method includes the following steps: S1. Slowly adding a CaCO 3 suspension to a TiOSO 4 solution that is continuously stirred at a first preset temperature In the process, a mixed solution is obtained after stirring evenly; S2, the mixed solution obtained in step S1 is placed under a second preset temperature condition for constant temperature stirring, and a CO(NH 2 ) 2 solution is added dropwise to adjust the pH of the mixed solution to 5-7 S3, the mixed solution obtained in step S2 is subjected to a hydrothermal reaction, and the product of the hydrothermal reaction is subjected to calcination treatment to obtain a CaTiO 3 /CaO composite material. The invention avoids the use of strong acids and strong bases, and simultaneously prepares CaTiO 3 and spherical CaO composite photocatalytic materials with uniform particle size distribution and cubic shape by calcining under low temperature conditions, and has the advantages of energy saving, high production efficiency, green environmental protection and good product performance, etc. advantage. |