煅烧温度对于WO3光催化CO2耦合CH3OH制备DMC性能影响
Effect of Calcination Temperature on the Performance of WO3 in Photocatalytic CO2 Coupled with CH3OH to DMC
DOI: 10.12677/ms.2025.156123, PDF,    科研立项经费支持
作者: 何泽雄, 陈 鹭, 夏宇宙, 陈 峰*：宁德师范学院新能源与材料学院，福建 宁德
关键词: WO3；CO2转化；碳酸二甲酯；光催化；WO3； CO2 Conversion； DMC； Photocatalyst
摘要: 光催化技术可以在光能的驱动下转化CO2获得高附加值的化学品，被视为发展可再生能源极具潜力的技术手段。WO3由于其良好的光吸收性能和化学稳定性被广泛用于与光催化研究领域。本文采用水热法结合高温煅烧制备了系列WO3半导体材料，探究合成温度对于WO3光催化CO2耦合CH3OH制备碳酸二甲酯(DMC)性能的影响。研究表明，不同煅烧温度均成功制备得到了WO3半导体材料。得到的样品表现为不规则块状形貌。WO3-500℃具有更高的氧缺陷浓度和更大的比表面积，进而表现出最佳的光催化反应活性，DMC的产率为2.25 μmol∙g−1∙h−1。
Abstract: Photocatalytic convertion CO2 into high value-added chemicals is regarded as a promising technical means for the development of renewable energy. WO3 is widely used in the field of photocatalysis due to its good light absorption performance and chemical stability. In this paper, a series of WO3 semiconductor materials were prepared by hydrothermal method combined with high-temperature calcination, and the effect of synthesis temperature on the performance of WO3 photocatalytic CO2 coupled with CH3OH into dimethyl carbonate (DMC) was explored. The results showed that WO3 semiconductor materials were successfully prepared at different calcination temperatures. The resulting sample exhibits an irregular block topography. WO3-500˚C exhibited the best photocatalytic activity with a higher oxygen defect concentration and a larger specific surface area, with a yield of 2.25 μmol∙g−1∙h−1 of DMC.
文章引用：何泽雄, 陈鹭, 夏宇宙, 陈峰. 煅烧温度对于WO3光催化CO2耦合CH3OH制备DMC性能影响[J]. 材料科学, 2025, 15(6): 1177-1183. https://doi.org/10.12677/ms.2025.156123

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