Modifying Crystallite Size Nano- and Giant Zeolite Crystals

4 Modifying Crystallite Size Nano- and Giant Zeolite Crystals 

Typical syntheses of microporous silicates result in the preparation of fine powders with particle sizes of a few microns, which may be agglomerates of 

The synthesis of zeolite nanoerystals ean take plaee from clear solutions as single colloidal gel particles erystallise to give erystals 40-80 nm in size. Mint-ova and Bein have developed this method and have prepared a number of zeolites (and aluminophosphates) by this route. Investigation of nanozeolites has given much information on the first steps of zeolite erystallisation and the nanozeolites themselves have many potential applieations. 

Lethbridge et al. have comprehensively reviewed the reported syntheses of large silicate crystals, and have identified routes to larger silicate crystals. These 

Charnell method Addition of aluminium chelating agent ethanolamine or related compounds LTA, FAU 

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