Crystal growth of calcium carbonate on the cellulose acetate/pyrrolidon blend films in the presence of L-aspartic acid |
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| Authors: | Xiuzhen Zhang Anjian Xie Fangzhi Huang Yuhua Shen |
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| Institution: | 1. Modern Experiment and Technology Center, Anhui University, Hefei, Anhui, 230039, People’s Republic of China
2. School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230039, People’s Republic of China
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| Abstract: | The morphogenesis and growth process of calcium carbonate on the cellulose acetate/polyvinyl pyrrolidone (CA/PVP) blend films in the presence of L-aspartic acid was carefully investigated. The results showed that the concentration of L-aspartic acid, the initial pH value of reaction solution and temperature turned out to be important factors for the control of morphologies and polymorphs of calcium carbonate. Complex morphologies of CaCO3 particles, such as cubes, rose-like spheres, twinborn-spheres, cone-like, bouquet-like, etc. could be obtained under the different experimental conditions. The dynamic process of formation of rose-like sphere crystals was analyzed by monitoring the continuous morphological and structural evolution and components of crystals in different crystal stages. This research may provide a promising method to prepare other inorganic materials with complex morphologies. |
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