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采用水热法制备钙钛矿型化合物AgTaO_3粉末晶体,采用粉末X-射线、扫描电子显微镜(SEM)和固体紫外漫反射光谱对化合物进行结构和物理性质表征,并采用BET法测定比表面积。通过光催化降解苋菜红实验测定AgTaO_3的光催化性能。Rietveld精修结果表明,化合物AgTaO_3属于正交晶系,空间群为Pcmn。该化合物的光催化性质测试表明,此化合物在室温下具有很高的光催化性质,在紫外光照射下能有效地降解染料苋菜红。
The crystal of perovskite AgTaO_3 powder was prepared by hydrothermal method. The structure and physical properties of the powder were characterized by powder X-ray diffraction, scanning electron microscopy (SEM) and solid-state ultraviolet diffuse reflectance spectroscopy. The BET surface area was measured by BET method. Photocatalytic Degradation of Amaranth by Photocatalytic Degradation of AgTaO_3. The results of Rietveld refinement show that the compound AgTaO_3 belongs to the orthorhombic system and the space group is Pcmn. The photocatalytic properties of the compound showed that the compound has high photocatalytic properties at room temperature and can effectively degrade the dye amaranth under UV irradiation.