Calcium sulphate dihydrate nanocrystals of 25–100 nm width have been synthesized in 100% purity and yield by means of a method—the cryovacuum process—consisting of rapid freezing of quasi-saturated solutions and subsequent vacuum assisted sublimation of water. Transmission electron microscopy reveals both curled nano-lamellae and smaller, irregular particles; electron diffraction patterns demonstrated that the particles are crystalline. This is a very powerful method for the ‘clean’ synthesis of moderately and completely water-soluble inorganic materials.
Salvadori, B., Mellini, M., Dei, L., Capitani, G. (2006). A novel method to prepare inorganic water-soluble nanocrystals. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 298(1), 487-490 [10.1016/j.jcis.2005.12.016].
A novel method to prepare inorganic water-soluble nanocrystals
CAPITANI, GIANCARLO
2006
Abstract
Calcium sulphate dihydrate nanocrystals of 25–100 nm width have been synthesized in 100% purity and yield by means of a method—the cryovacuum process—consisting of rapid freezing of quasi-saturated solutions and subsequent vacuum assisted sublimation of water. Transmission electron microscopy reveals both curled nano-lamellae and smaller, irregular particles; electron diffraction patterns demonstrated that the particles are crystalline. This is a very powerful method for the ‘clean’ synthesis of moderately and completely water-soluble inorganic materials.
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