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采用溶胶凝胶法在石英基体上制备Ba4(In0.95Cr0.05)2O7薄膜。通过X射线衍射,扫描电镜,紫外漫反射光谱,光照下水溶液中甲基橙降解实验表征材料性能。SEM结果表明薄膜由均匀纳米棒组成,紫外漫反射结果表明材料吸收边为450nm,具有较宽的光谱响应范围。光催化实验表明材料在2h内甲基橙降解率达到76%。由于该材料易于回收再利用,可重复使用,并且其光催化效率可通过材料和光催化反应体系的不断改性来继续提高,因而在光催化方面具有较理想的研究及应用前景。
Ba4 (In0.95Cr0.05) 2O7 thin films were prepared on quartz substrates by sol-gel method. The material properties were characterized by X-ray diffraction, scanning electron microscopy, ultraviolet diffuse reflectance spectroscopy and degradation of methyl orange in aqueous solution under light irradiation. SEM results showed that the film consisted of uniform nanorods. The result of UV diffuse reflectance shows that the absorption edge of the material is 450 nm and has a wide spectral response range. Photocatalytic experiments showed that the degradation rate of methyl orange reached 76% in 2 h. As the material is easy to recycle, reusable, and its photocatalytic efficiency through continuous modification of materials and photocatalytic reaction system to continue to improve, and thus has the ideal photocatalytic research and application prospects.