Fe-Based metal–organic frameworks (Fe-MOFs) were prepared with trimesic acid and FeSO₄·7H₂O via a microwave-assisted ball milling approach. The structure and thermal stability of the as-prepared Fe-MOFs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FTIR), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). When used to degrade 20 mg L⁻¹ hexavalent chromium in aqueous solution, the Fe-MOFs were found to completely reduce a 100 mL solution within 120 min under natural light and a 400 mL solution within 90 min under Xe lamp irradiation. Under natural sunlight, 98% of the Cr(VI) was removed from a 40 mL solution after 40 min.

中文翻译：

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微波辅助球磨制备降低废水中Cr（VI）的Fe-MOFs

铁基金属有机骨架（Fe-MOFs）是由偏苯三酸和FeSO ₄ ·7H ₂ O通过微波辅助球磨法制备的。通过X射线衍射（XRD），扫描电子显微镜（SEM），傅立叶变换红外光谱（FTIR），X射线光电子能谱（XPS）和热重分析表征了制备的Fe-MOF的结构和热稳定性。分析（TGA）。当用于降解水溶液中的20 mg L ^-1六价铬时，发现Fe-MOF在自然光下120分钟内可完全还原100 mL溶液，在Xe灯照射下90分钟内可完全还原400 mL溶液。在自然光下，Cr（VI40分钟后，从40mL溶液中除去）。