An improved process for the synthesis of VPI-5 molecular sieve

[摘要] VPI-5 was synthesized with lesser time duration. The synthesized sample was characterized by XRD, SEM, FT-IR, TG/DTA, 27Al and 31P MASNMR techniques, which shows that the synthesized sample was highly crystalline. Carbon and nitrogen analyses reveal that the sample contains no template molecules, however, TG/DTA analysis shows the presence of physisorbed template molecules. MASNMR results show the presence of three different types of aluminium and phosphorous. Two of them were present as in tetrahedral and the remaining one is present in octahedral environment.

[学科分类] 材料工程

[关键词] VPI-5;synthesis;XRD;SEM;TG/DTA;FT-IR;MASNMR.