超声辅助加热制备虫草状碳酸钡微米棒

Preparation of Cordycep-like Shape Barium Carbonate Microrods with Ultrasonic-assisted Heating

利用氯化钡和碳酸钠为原料,通过在溶剂中加入适量聚乙二醇(PEG)作为添加剂,运用超声辅助加热快速合成出了虫草状碳酸钡微米棒。利用扫描电子显微镜(SEM)、傅立叶变换红外光谱(FT-IR)、X-射线衍射(XRD)和热重分析(TGA)等系列技术对产物进行了表征。结果显示,产物为正交相Ba CO3,呈现虫草棒状结构,直径约为0.5μm,长度在2.2~5μm之间,粒度均匀,颗粒之间有明显的边界。

Cordycep-like shape barium carbonate microrods have been synthesized rapidly via an ultrasonic-assistant heating process by using barium chloride and carbonate as the raw materials,and adding polyethylene glycol（ PEG） as the additive. The obtained materials were characterized by Scanning electron microscopy（ SEM）, Fourier transform infrared spectrometer（ FT-IR）, X-ray diffractometer（ XRD） and Thermogravimetry Analyzer（ TGA）. The results indicate that the as-prepared sample was orthorhombic BaCO3,SEM images show that the sample possessed cordyceps-likes microrods structure,the diameters are about 0. 5 μm,the lengths range from 2. 2 to 5 μm with uniform cordyceplike shape,the boundaries among the particles are clear.