Abstract:

Using metal-organic frameworks(MOFs) MIL-53(Fe) as its templet, a kind of porous metallic oxide FeO_x has been synthesized. This kind of material remains porosity and high specific surface area(934 m²/g), and has certain magnetism(35.10 emu/g) and resistance to acids and bases. Therefore, this kind of material has the capability of catalytic oxidation degradation of organic dyestuff under severe environment. In the presence of H₂O₂ and NH₂OH, the experimental results of methylene blue degradation show that the degradation capability is the best, when pH=3.0, concentration of NH₂OH=10 mmol/L, and concentration of H₂O₂=10 mmol/L. Compared with other materials, the catalytic capability of this kind of material is comparatively high.

Key words: metal-organic frameworks, catalytic oxidation, methylene blue, porous metal oxides

摘要：

以金属有机骨架（MOFs）MIL-53（Fe）为模板，合成了一种多孔金属氧化物FeO_x。这种材料保留了MOFs的多孔性和高比表面积（934 m²/g），还具有一定的磁性（35.10 emu/g）和耐酸碱性，使其具备了在恶劣环境下催化氧化降解有机染料的性能。在H₂O₂和NH₂OH存在的条件下降解亚甲蓝的实验结果表明，在pH=3.0，NH₂OH浓度为10 mmol/L，H₂O₂浓度为10 mmol/L的条件下，降解性能最优，与其他材料相比，表现出了较高的催化性能。

关键词: 金属有机骨架, 催化氧化, 亚甲蓝, 多孔金属氧化物

CLC Number: 

• X703.1