Synthesis of CaCO3 Nanoparticles by Mechanochemical Processing
Source abstract
Abstract
The synthesis of calcite (CaCO3) nanoparticles by mechanochemical reaction and subsequent heat treatment was investigated. A solid-state displacement reaction CaCl2 + Na2CO3 → CaCO3+2NaCl was induced during mechanical milling of a CaCl2+ Na2CO3 powder mixture. Heat treatment of the as-milled powder at 350°C completed the reaction, forming crystalline CaCO3 nanoparticles separated from each other in a dry-salt matrix. A simple washing process to remove the matrix yielded calcite single phase ultrafine powder. The mean particle size was controlled by changing the volume fraction of CaCO3 in the matrix. 20% volume fraction yielded nanoparticles of ~ 140 nm in size, whereas 10% volume fraction led to ~ 80 nm size nanoparticles.
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Research context
OpenAlex topics: Calcium Carbonate Crystallization and Inhibition · Crystallization and Solubility Studies · Electrophoretic Deposition in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
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