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Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Published on: May 14, 2019

Multi-phase equilibrium microemulsions and synthesis of hierarchically structured calcium carbonate through

Liping Liu¹, Dawei Fan, Hongzhi Mao

¹Key Laboratory of Colloid and Interface Chemistry (Shandong University), Education Ministry, Jinan 250100, PR China.

Journal of Colloid and Interface Science

|November 23, 2006

Abstract:

Middle-phase microemulsions (MPMs) in two systems of a cationic surfactant, tetradecyltrimethylammonium bromide (TTABr)/n-butanol/iso-octane/Na2CO3 or CaCl2 and an anionic surfactant, sodium dodecyl sulfate (SDS)/n-butanol/iso-octane/Na2CO3 or CaCl2, were used to synthesize nanostructured calcium carbonates. MPMs provide a simple and versatile reaction media, i.e., upper-phase W/O, BC, and O/W structured equilibrium microemulsions to be used for synthesizing hierarchically structured CaCO3 at the nanometer scale. On the basis of the investigations on the phase behavior of the MPMs, hierarchically structured calcium carbonates with dendrites, ellipsoids, square-schistose cubes, and spheres were synthesized through the MPM-based routes.

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