Amorphous Calcium Carbonate: Synthesis and Transformation

Abstract

AbstractIn this chapter, we discuss in detail about the syntheses and transformation of amorphous calcium carbonate (ACC). The aim of the present chapter is to present an overview on the synthetic strategies and crystallization of ACC reported till now. It should be noticed that the synthesis strategies and crystallization of ACC have achieved great progress. The main preparation methods for ACC include the direct-mixing method, gas diffusion technique, hydrolysis of carbonate source method and Kitano method, which have been fully discussed. A general review on the crystallization of ACC has been discussed. It is demonstrated that the transformation of ACC plays an important role in biomineralization. Several important transformation routes of ACC are selected for more detailed discussion. Current progress in this field demonstrates that there are a number of potential opportunities for both syntheses and transformation of ACC, and CaCO3 crystals with different morphologies, structural features, and functionalities. In future, it is dramatically needed to find a reasonable way to prepare new composite materials using ACC or their transformed calcium carbonate crystals as one component, making ACC more useful for practical applications.KeywordsCalcium CarbonateColloidal CrystalCalcium Carbonate PrecipitatePolyaspartic AcidAmorphous Calcium CarbonateThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.