在此研究中，藉由MIL-100(Fe)的一步還原鍛燒，成功製備出FeO/Fe3O4/Fe3C磁性複合物。此複合物保有原MIL-100(Fe)的形態，並且具備磁力和吸收紫外光的特性。因此本研究藉由在紫外光下降解亞甲藍(methylene blue, MB)來證實FeO/Fe3O4/Fe3C複合物的光觸媒性能。結果發現此複合物在中性環境下具備優良的光觸媒性能，且此吸附/催化複合程序可以Langmuir–Hinshelwood模型來描述。藉由相關速率常數與平衡常數的決定，顯示所得FeO/Fe3O4/Fe3C複合材料作為可磁性回收之光觸媒，在染料廢水處理有良好的應用潛力

In this study, the FeO/Fe3O4/Fe3C magnetic composite has been successfully prepared by the one-step reductive calcination of MIL-100(Fe). The FeO/ Fe3O4/Fe3C composite had the morphology inherited from the pristine MIL-100 (Fe), could be separated using a magnet and exhibited strong absorption in the ultra-violet (UV) region. Its photocatalytic performance was demonstrated by investigating its capability for the photocatalytic degradation of methylene blue (MB) under UV light irradiation. It was found that the FeO/Fe3O4/Fe3C composite had a better photocatalytic performance at near-neutral solution pH value. Also, the adsorption/catalysis combined process could be described by the Langmuir–Hinshelwood kinetic model. The corresponding rate constant and equilibrium constant was determined. This revealed that the resulting FeO/Fe3O4/Fe3C composite had potential as the magnetically recoverable photocatalyst in the treatment of textile printing and dyeing wastewaters.

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