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| 铜修饰钒酸铋/膨润土复合材料的制备及可见光催化脱硫性能研究 | |
| 引用本文： | 刘巍,田永胜,崔佳伟,王光辉. 铜修饰钒酸铋/膨润土复合材料的制备及可见光催化脱硫性能研究[J]. 化工新型材料, 2021, 0(2): 200-203 |
| 作者姓名： | 刘巍 田永胜 崔佳伟 王光辉 |
| 作者单位： | 武汉科技大学化学与化工学院 |
| 基金项目： | 国家自然科学基金(21473126);湖北省煤转化与新型碳材料重点实验室开放基金(WKDM201705)。 |
| 摘 要： | 采用水热法制备了铜修饰钒酸铋/膨润土(Cu-BiVO_4/BTT)复合材料,借助X射线衍射(XRD)、扫描电子显微镜(SEM)、X射线光电子能谱(XPS)和紫外-可见漫反射吸收光谱(DRS)对其进行表征。XRD分析显示,所制备的催化剂中BiVO_4均保持单斜结构,SEM结果证实了钒酸铋负载到了膨润土上,XPS结果显示Cu元素以CuO形式存在于催化剂表面,DRS结果显示复合材料在可见光区域的吸收增强。研究表明,当Cu与Bi的摩尔比为1.2时,复合材料光催化活性最高,经可见光照射3h,对模型汽油脱硫率达91%。 |
| 关 键 词： | 钒酸铋 膨润土 可见光 光催化脱硫 |
Preparation and characterization of Cu-BiVO4/BTT nanocomposite for visible light photocatalytic desulfurization |
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| Liu Wei,Tian Yongsheng,Cui Jiawei,Wang Guanghui. Preparation and characterization of Cu-BiVO4/BTT nanocomposite for visible light photocatalytic desulfurization[J]. New Chemical Materials, 2021, 0(2): 200-203 | |
| Authors: | Liu Wei Tian Yongsheng Cui Jiawei Wang Guanghui |
| Affiliation: | (School of Chemistry and Chemical Engineering,Hubei Key Laboratory of Coal Conversion and New Carbon Material,Wuhan University of Science and Technology,Wuhan 430081) |
| Abstract: | Copper modified bismuth vanadate/bentonite(Cu-BiVO4/BTT)nanocomposites were hydrothermally synthesized,and characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),and UV-Vis diffuse reflectance spectroscopy(DRS).XRD showed that all the photocatalysts had the same single monoclinic sheelite structure.SEM results confirmed that BiVO4was loaded to BTT.XPS results shown that Cu existed on the surface of the BiVO4catalysts as their stable oxide cation species CuO.DRS results shown the absorption of nanocomposites was enhanced in the visible region.The highest desulfurization rate of model oil can reach 91%under the visible light irradiation for 3 hwhen the molar ratio of Cu to Bi was equal to 1.2. |
| Keywords: | bismuth vanadate bentonite visible light photocatalytic desulfurization |
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