Regulation of Calcium Carbonate Biomimetic Mineralization by Biomass Polysaccharide with Different Molecular Weights and Spatial Configurations

Shuang Liu1, 2, 3

Hao Wu1, 2, 3

Xiang Lu1, 2, 3, Email

Jinping Qu1, 2, 3, Email

1Key Laboratory of Material Chemistry for Energy Conversion and Storage, Huazhong University of Science & Technology, Ministry of Education, Wuhan, 430074, P. R. China 
2Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Huazhong University of Science & Technology, Wuhan, 430074, P. R. China 
3Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, 430074, P. R. China

 

Abstract

As one of the important research directions in biomimetic mineralization, the research of biomimetic synthesis of calcium carbonate (CaCO3) can administer to deeply understand the mineralization mechanism of biominerals, and provides new mentality for the preparation of new multifunctional materials. In this study, the biomass polysaccharides with different chain lengths and spatial configurations were introduced into a simple system of CaCl2 and CO(NH2)2, and the effect on the crystallization of CaCO3 were studied. The obtained crystals were analyzed by scanning electron microscope (SEM), X-ray powder diffractometer (XRD), Fourier transform infrared (FT-IR) and the results showed that glucose, sucrose, amylose and amylopectin played a crucial role in the crystallization process of CaCO3, which not only induces and regulates the mineralization process of CaCO3 crystals, but also affects the morphology and size of the formed CaCO3 crystals. Among the rest, amylose will induce amorphous calcium carbonate (ACC) in the process of inducing calcium carbonate crystallization, and the ACC will transform into stable calcite with the increase of time. Moreover, 25 mg/L amylopectin can induce the formation of CaCO3 calcite crystals with smaller particle size in terms of particle size adjustment for CaCO3 crystals.

Regulation of Calcium Carbonate Biomimetic Mineralization by Biomass Polysaccharide with Different Molecular Weights and Spatial Configurations