Fast Synthesis of CHA-type Zeolite Using Dealuminated Amorphous Aluminosilicates with High Reactivity
- Resource Type
- Article
- Authors
- Sada, Yuki; Miyagi, Shoko; Yoshioka, Masato; Ishikawa, Tomoya; Naraki, Yusuke; Sano, Tsuneji; Okubo, Tatsuya; Wakihara, Toru
- Source
- Chemistry Letters; September 2023, Vol. 52 Issue: 9 p691-695, 5p
- Subject
- Language
- ISSN
- 03667022; 13480715
Use of dealuminated amorphous aluminosilicates (deAl-Amor) achieved faster synthesis of CHA-type zeolites compared with using conventional amorphous aluminosilicates (Amor). The deAl-Amor also expanded the synthesis window of reactant compositions. Moreover, there was a large difference in morphologies of solid products obtained during the crystallization process between deAl-Amor and Amor, suggesting the time gap in supplying aluminosilicate species contributing to the CHA crystal growth. These results indicate the high potential of deAl-Amor as starting materials for zeolite synthesis.Use of dealuminated amorphous aluminosilicates (deAl-Amor) achieved the faster synthesis of CHA-type zeolites compared with using conventional amorphous aluminosilicates (Amor) prepared by simply mixing amorphous Si and Al sources in an alkaline solution. The deAl-Amor also extended the range of reactant compositions. These results suggest that the deAl-Amor has locally ordered structures favorable to CHA zeolite synthesis.