水热法合成磷酸银及其表征

Hydrothermal Synthesis and Characterization of Silver Phosphate

以硝酸银和十二水磷酸钠为原料,150℃水热条件下反应24 h制备出了多面体Ag3PO4。对产物的结构进行了X-射线粉末衍射(XRD),扫描电子显微镜(SEM),荧光(FL)光谱表征,分析了在水热条件下AgNO3浓度﹑反应时间、反应温度和溶液的pH对产物形貌的影响。X-射线粉末衍射分析表明得到的产物为纯净的立方相Ag3PO4,通过扫描电镜观察到产物形貌主要为多面体结构。

Polyhedron Ag3PO4 particles are hydrothermally prepared by the reaction of AgNO3 with Na3PO4 - 12H20 at 150~C for 24h. The products are characterized by X -ray powder diffraction （XRD）, scanning electron microscopy （SEM） and fluorescence （FL）. The XRD spectra confirms that the products are pure cubic Ag3PO4. The morphology Ag3PO4 is polyhedron. The influences of the concentration of the sliver salt, the time, the temperature and pH on the morphology of the final products were studied.