Abstract
A rapid synthetic strategy through ball milling and recrystallization was successfully developed. Aluminophosphate molecular sieve with AWO topology was prepared by the precursor of two. dimensional(2D) layered aluminophosphate AlPO-IM.
Simultaneously, metal. containing aluminophosphate molecular sieves with LAU topology were synthesized by introducing the metal heteroatoms in the ball. milling process. The phase transformation mechanism was comprehensively analyzed by Raman spectroscopy and CShM calculation.
The results show that metal heteroatoms have an inorganic structure. directing effect in the synthesis of LAU molecular sieves. The ball milling. recrystallization method not only greatly shortens the crystallization time, but also converts the 2D layered aluminophosphates into a 3D molecular sieve under solvent. free conditions.
Compared with the traditional hydrothermal/solvothermal synthesis, the ball milling. recrystallization method has the characteristics of high efficiency and energy saving, which expands the synthetic route of aluminophosphate molecular sieves.