β-硅酸二钙水化法简易合成掺硅球霰石

Facile Synthesis of Silicon-doped Vaterite in the Hydration of β-dicalcium Silicate

据报道微量的钙离子和硅可促进成骨细胞的增殖,分化和矿化作用。掺硅球霰石因其具有:高比表面积、高的溶解度以及较小的比重是一种重要的生物材料。本研究中,通过一种简易的方法可以很容易制得掺硅球霰石,即,在二氧化碳气体的气氛下进行水化反应。X射线衍射,傅里叶红外光谱和能谱仪被用于表征球霰石的相组成和形貌特征。通过这种方法不仅可以消除水泥中氢氧化钙对水泥的危害同时在硬组织修复方面也很有潜力。

Trace amounts of ionic calcium and silicate species have been reported to stimulate the proliferation, differentiation, and mineralization of bone-forming cells. Silicon-doped vaterite as an important biomedical material due to its features such as high specific area, high solubility, and small specific gravity. In this research, silicondoped vaterite was easily prepared by a simple method, namely, setting the hydration reaction of β-Ca2 Si O4 powders under the CO2 gas atmosphere. XRD, FTIR, and SEM-EDS were used to characterize the phase composition and morphology of the vaterite. This method not only eliminate the damage of Ca(OH)2 for cement but also can be a potential candidate as biomaterials for hard tissue repair.