论文部分内容阅读
全球变暖和能源危机使得人们开始同时关注二氧化碳和太阳能的利用.在本工作中,我们制备了Sr Zr O3纳米颗粒,并将其作为催化剂使二氧化碳转化为高能量附加值产品.我们利用超声化学法成功制备了Sr Zr O3纳米材料,并通过X射线衍射(XRD)、拉曼光谱、扫描电子显微镜(SEM)、BET比表面积分析、X射线光电子能谱(XPS)以及紫外-可见吸收光谱(UV/vis)等对样品进行了相应表征.将Sr Zr O3作为催化剂,在300W氙灯光源照射下进行光催化还原二氧化碳实验,结果表明乙醇、甲烷和一氧化碳是主要的光催化产物,反应进行4小时后,三种产物相应的产量分别为41、2.57和1.6μmol g-1.论文分析了三种产物生成的原因.本研究工作表明,Sr Zr O3纳米材料可以作为一种有效的催化剂应用于光催化还原二氧化碳.
The global warming and the energy crisis have led to the beginning of both the use of carbon dioxide and solar energy.In this work we prepared Sr Zr O 3 nanoparticles and use them as catalysts to convert carbon dioxide into high energy value added products.We used the sonochemical method Sr Zr O 3 nanomaterials were successfully prepared and characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), BET specific surface area analysis, X-ray photoelectron spectroscopy (XPS) and UV-visible absorption spectroscopy / vis), etc. The photocatalytic reduction of carbon dioxide with Sr Zr O3 as a catalyst under 300W xenon lamp light source showed that ethanol, methane and carbon monoxide were the main photocatalysts. After 4 hours of reaction, , The corresponding yields of the three products were 41, 2.57 and 1.6μmol g-1, respectively.The reason for the formation of the three products was analyzed in this paper.The work of this study shows that Sr ZrO3 nanomaterials can be used as an effective catalyst in photocatalysis Carbon dioxide reduction.