精品文档---下载后可任意编辑NO 在贵金属 Pt 和 Pd 修饰的 TiO2 上的光催化氧化性能实验讨论的开题报告摘要：本文将探讨贵金属 Pt 和 Pd 对 TiO2 光催化氧化性能的影响。通过制备不同 Pt 和 Pd 含量的 Pt/TiO2 和 Pd/TiO2 催化剂，用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、X-射线光电子能谱（XPS）和紫外可见光谱等表征技术对其进行分析，并讨论了催化剂对罗丹明 B的光催化降解性能。实验结果表明，将 Pt 和 Pd 添加到 TiO2 中可以提高其光催化性能。随着 Pt 和 Pd 的含量增加，光催化性能不断提高，但达到一定的 Pt 和 Pd含量后，其性能开始趋于稳定。在光照 4 小时后，Pt 和 Pd 负载催化剂的降解率分别达到了 85.2%和 79.5%。本讨论的结果可以为开发具有高效光催化性能的 TiO2 基复合材料提供理论依据和实验基础。关键词：贵金属；TiO2；光催化；催化剂；降解性能Abstract：This paper explores the effect of precious metals Pt and Pd on the photocatalytic oxidation performance of TiO2. By preparing Pt/TiO2 and Pd/TiO2 catalysts with different Pt and Pd contents, the characterization techniques such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet visible light spectroscopy are used for analysis, and the catalytic degradation performance of Rhodamine B by the catalysts is studied.The experimental results show that adding Pt and Pd to TiO2 can improve its photocatalytic performance. With the increase of Pt and Pd content, the photocatalytic performance improves continuously, but when reaching a certain Pt and Pd content, its performance begins to stabilize. After 4 hours of illumination, the degradation rates of Pt and Pd loaded catalysts reached 85.2% and 79.5%, respectively.The results of this study can provide theoretical basis and experimental basis for the development of TiO2-based composite materials with efficient photocatalytic performance.精品文档---下载后可任意编辑Keywords: precious metal; TiO2; photocatalysis; catalyst; degradation performance
