A new low temperature synthesis route of fraipontite (Zn,Al)3(Si,Al)2O5(OH)4
Kloprogge, J. Theo, Hammond, Mayra, Hickey, Leisel, & Frost, Ray L. (2001) A new low temperature synthesis route of fraipontite (Zn,Al)3(Si,Al)2O5(OH)4. Materials Research Bulletin, 36(5-6), pp. 1091-1098.
A low temperature synthesis method based on the decomposition of urea at 90°C in water has been developed to synthesise fraipontite. This material is characterised by a basal reflection 001 at 7.44 Å. The trioctahedral nature of the fraipontite is shown by the presence of a 06l band around 1.54 Å, while a minor band around 1.51 Å indicates some cation ordering between Zn and Al resulting in Al-rich areas with a more dioctahedral nature. TEM and IR indicate that no separate kaolinite phase is present. An increase in the Al content however, did result in the formation of some SiO2 in the form of quartz. Minor impurities of carbonate salts were observed during the synthesis caused by to the formation of CO32- during the decomposition of urea.
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|Item Type:||Journal Article|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2001 Elsevier|
|Deposited On:||17 Jun 2009 13:42|
|Last Modified:||04 Sep 2009 01:52|
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