钙钛矿型氧化物AgTaO<sub>3</sub>光催化性质的研究

钙钛矿型氧化物AgTaO₃光催化性质的研究

基金项目:

营口理工学院院极科研基金项目(QN-L-201403)

国家自然科学基金项目(21201073)

详细信息

1. YingKou Institute of Technology, Yingkou 115000, China;
2. Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun 130012, China

摘要: 采用水热法制备钙钛矿型化合物AgTaO₃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AgTaO₃的光催化性能。Rietveld精修结果表明,化合物AgTaO₃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。
- 水热合成 /
- 钙钛矿结构 /
- 光催化性质
Abstract: The perovskite-type AgTaO₃ crystal was prepared by mild hydrothermal method and characterized by powder X-ray diffraction, scanning electron microscopy (SEM), Brunauer-Emmet-Teller surface area (BET), XPS, FTIR and UV-vis diffuse reflectance spectra (UV-vis DRS). Rietveld refinements indicated that AgTaO₃ crystallized in orthorhombic system with space group Pcmn. The results showed that the compound had high photocatalytic activity at room temperature and could degrade amaranth under UV-light irradiation effeciently.
- hydrothermal synthesis /
- perovskite structure /
- photocatalytic property