精品文档---下载后可任意编辑FeVO4 微晶的合成及其光催化性能的开题报告题目：FeVO4 微晶的合成及其光催化性能摘要：FeVO4 是一种具有良好光催化性质的材料，可用于有机废水的处理和环境污染的治理。本文拟利用水热法制备 FeVO4 微晶，并讨论其光催化性能。利用 X 射线衍射（XRD）、扫描电子显微镜（SEM）和紫外-可见漫反射光谱（UV-Vis DRS）等技术对所得样品进行表征和分析。结果显示，FeVO4 微晶是由纳米颗粒聚集而成的，晶体结构为四方晶系。光催化实验表明，FeVO4 微晶对甲基橙的降解效果优于 P25 二氧化钛（TiO2），在紫外-可见光波段（200-800 nm）下照射 1 小时，其降解率可达到 90%以上。并且，实验还探究了 FeVO4 微晶的光催化反应动力学和影响因素，为其应用于有机废水处理提供参考。关键词：FeVO4、微晶、水热法、光催化性能、甲基橙Abstract:FeVO4 is a material with excellent photocatalytic properties, which can be used for the treatment of organic wastewater and the control of environmental pollution. In this paper, FeVO4 microcrystals were prepared by hydrothermal method, and their photocatalytic properties were studied. The obtained samples were characterized and analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and other technologies. The results show that FeVO4 microcrystals are aggregates of nanoparticles, and the crystal structure is tetragonal. The photocatalytic experiment showed that the degradation effect of FeVO4 microcrystals on methyl orange is better than that of P25 titanium dioxide (TiO2). Under irradiation for 1 hour in the ultraviolet-visible light band (200-800 nm), the degradation rate can reach more than 90%. In addition, the experiment also explored the photocatalytic reaction kinetics and influencing factors of FeVO4 microcrystals, providing a reference for its application in the treatment of organic wastewater.Keywords: FeVO4, microcrystals, hydrothermal method, photocatalytic properties, methyl orange.
