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A TAPO-11 molecular sieve with the space group Icm2 was synthesized successfully. The samples with different space group were controlled simply only by adjusting the crystallization temperature (CT) in the hydrothermal system. In the system of gel with a molar composition of 0.7R: xTiO2: P2O5: Al2O3: 30H2O, where x is 0.01-0.10 and the R is a mixture of di-n-propylamine and diisopropylamine as templates. When CT was between 150-160℃ , the calcined sample showed the space group of Icm2, while it showed Pna21 at CT larger than 190℃. The characterizations of UV-Vis and FT-IR confirmed that Ti was incorporated into the AEL framework successfully.
A TAPO-11 molecular sieve with the space group Icm2 was synthesized successfully. The samples with different space group were controlled simply simply by adjusting the crystallization temperature (CT) in the hydrothermal system. In the system of gel with a molar composition of 0.7R : xTiO2: P2O5: Al2O3: 30H2O where x is 0.01-0.10 and the R is a mixture of di-n-propylamine and diisopropylamine as templates. When CT was between 150-160 ° C, the calcined sample showed the space group of Icm2 , while it showed Pna21 at CT larger than 190 ° C. The characterizations of UV-Vis and FT-IR confirmed that Ti was incorporated into the AEL framework successfully.