School of Materials Science and Engineering, Nanjing Institute of Technology, No. 1, Hongjing Road, Jiangning District, Nanjing, 211167, People's Republic of China. Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, No. 1, Hongjing Road, Jiangning District, Nanjing, 211167, People's Republic of China.
Nanotechnology. 2020 May 22;31(21):215702. doi: 10.1088/1361-6528/ab73b4. Epub 2020 Feb 7.
Pyramidal SnO/CeO nano-heterojunction photocatalysts were successfully synthesized via a facile hydrothermal method. The structural characterization was investigated by using common characterization tools. The content of SnO affected the morphology and photocatalytic performance of the SnO/CeO nano-heterojunctions. With the increase of the SnO content, the morphology of the samples changed from a spherical structure to a pyramidal structure. The photocurrent of the SnO/CeO (1:6) sample was about 36 times that of pure CeO. With SnO/CeO (1:6) as the photocatalyst, the degradation rate of tetracycline (TC) was 99% within 140 min under visible light and after five cyclic tests the photocatalytic efficiency of TC remained at 98%, which suggests that the SnO/CeO (1:6) nano-heterojunction had a high photocatalytic efficiency and stable photocatalytic performance. These results indicate that SnO/CeO (1:6) nano-heterojunction possesses broad prospects for industrial application.
通过简便的水热法成功合成了金字塔形 SnO/CeO 纳米异质结光催化剂。采用常见的表征工具对其结构进行了表征。SnO 的含量影响 SnO/CeO 纳米异质结的形态和光催化性能。随着 SnO 含量的增加，样品的形态从球形结构变为金字塔形结构。SnO/CeO（1:6）样品的光电流约为纯 CeO 的 36 倍。以 SnO/CeO（1:6）为光催化剂，在可见光下，四环素（TC）的降解率在 140 分钟内达到 99%，经过五次循环测试后，TC 的光催化效率仍保持在 98%，这表明 SnO/CeO（1:6）纳米异质结具有较高的光催化效率和稳定的光催化性能。这些结果表明，SnO/CeO（1:6）纳米异质结具有广阔的工业应用前景。
