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RESEARCH PRODUCT
Exploratory Synthesis of Low-Silica Nanozeolites through Geopolymer Chemistry
Wenwen ZhangDong Kyun SeoShaojiang ChenLukas P. Sorgesubject
010405 organic chemistryGeneral ChemistryFaujasiteengineering.material010402 general chemistryCondensed Matter Physics01 natural sciences0104 chemical sciencesCancriniteCatalysisGeopolymerchemistry.chemical_compoundChemical engineeringchemistryengineeringSodaliteGeneral Materials ScienceCrystalliteMesoporous materialZeolitedescription
Nanozeolites are of great interest with the premise of their efficiency in traditional applications such as catalysis and separation, as well as their emerging applications including chemical sensors, medicine, and food industry. We report a new geopolymerization route for the synthesis of nanozeolites with different crystal structures by exploring the Na–Al–Si–H2O quaternary phase space under a mild hydrothermal condition. Nanostructured faujasite (FAU), cancrinite (CAN), and sodalite (SOD) zeolites with a crystallite size smaller than 40 nm were successfully produced from our exploration, as well as a submicron-sized Linde-Type A (LTA) zeolite. The transmission electron microscopy and nitrogen sorption analysis on representative zeolite samples showed that FAU and SOD zeolites exhibit textural mesopores, while CAN products have a more open aggregate structure. Our findings establish the geopolymerization as a convenient route for production of low-silica nanozeolites.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-01-10 | Crystal Growth & Design |