海螺状碳酸钙的可控合成与荧光性能

发布时间：2018-05-30 15:53

  本文选题：碳酸钙 + 原位制备　； 参考：《高等学校化学学报》2017年12期

【摘要】：采用液相沉淀法,以硝酸铋[Bi(NO_3)_3]为添加剂来调控碳酸钙晶体的形状与大小,制备了海螺状碳酸钙粒子.通过扫描电子显微镜(SEM)、X射线衍射仪(XRD)、热重分析仪(TGA)、原子荧光光谱仪(AFS)等对产物的结构和性能进行了表征.结果表明,在60℃条件下,添加20 mL浓度为2 g/L的Bi(NO_3)_3溶液可得到海螺状球霰石型碳酸钙粒子,且其荧光性明显增强.在碳酸钙的成核过程中,Bi~(3+)的加入起到了显著的调控作用.
[Abstract]:Conch calcium carbonate particles were prepared by liquid-phase precipitation method with bismuth nitrate [Bi(NO_3)_3] as additive to regulate the shape and size of calcium carbonate crystal. The structure and properties of the products were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and atomic fluorescence spectroscopy (AFS). The results show that the conch type calcium carbonate particles can be obtained by adding 20 mL Bi(NO_3)_3 solution at 60 鈩，

本文编号：1955864