熔融盐法合成性能优异的 CoFeO/C 纳米催化剂及其在 4-硝基苯酚还原中的应用。
Synthesis of CoFeO/C nano-catalyst with excellent performance by molten salt method and its application in 4-nitrophenol reduction.
机构信息
The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Ministry Key Laboratory of Oil and Gas Fine Chemicals College of Chemistry and Chemical Engineering, Xinjiang University Urumqi, 830046, China.
Ministry Key Laboratory of Oil and Gas Fine Chemicals College of Chemistry and Chemical Engineering, Xinjiang University Urumqi, 830046, China.
出版信息
Environ Pollut. 2019 Nov;254(Pt A):112961. doi: 10.1016/j.envpol.2019.112961. Epub 2019 Jul 31.
CoFeO/C nano-sheets (NSs) have been synthesized by a facile molten salt method using cheap potassium fulvate as carbon source and sodium chloride as template. The morphology, crystallinity and composition of the materials were analyzed by TEM, XRD and XPS. The study on the catalytic performance of 4-nitrophenol (4-NP) shows that CoFeO/C-600 nano-catalyst has the highest catalytic activity and the corresponding apparent constant is 1.91 min, this result is higher than that reported in most literatures. Catalytic kinetics of 4-NP reduction was studied in this article, and activation energy (E) was calculated to be 14.31 kJ mol. The catalyst also shows good cycle performance and stability. This convenient method provides a reference for the synthesis of MFeO/C and other nano-metal oxides/C nanocomposite catalysts.
CoFeO/C 纳米片（NSs）已通过一种简便的熔融盐法合成，该方法使用廉价的富马酸钾作为碳源，氯化钠作为模板。通过 TEM、XRD 和 XPS 分析了材料的形态、结晶度和组成。对 4-硝基苯酚（4-NP）的催化性能研究表明，CoFeO/C-600 纳米催化剂具有最高的催化活性，相应的表观常数为 1.91 min，这一结果高于大多数文献报道的结果。本文还研究了 4-NP 还原的催化动力学，并计算了活化能（E）为 14.31 kJ/mol。该催化剂还表现出良好的循环性能和稳定性。这种简便的方法为 MFeO/C 和其他纳米金属氧化物/C 纳米复合材料催化剂的合成提供了参考。
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