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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Preparation of Fe-MOFs by microwave-assisted ball milling for reducing Cr(VI) in wastewater
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Preparation of Fe-MOFs by microwave-assisted ball milling for reducing Cr(VI) in wastewater

机译:通过微波辅助球磨制备Fe-Mofs,用于减少废水中的Cr(VI)

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摘要

Fe-Based metal-organic frameworks (Fe-MOFs) were prepared with trimesic acid and FeSO4 center dot 7H(2)O 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.
机译:通过微波辅助球铣削方法用微波辅助酸和FeSO4中心点7h(2)o制备Fe基金属骨架(Fe-Mof)。 通过X射线衍射(XRD),扫描电子显微镜(SEM),傅里叶变换红外光谱(FTIR),X射线光电子能谱(XPS)的结构和热稳定性的特征和热稳定性特征在于,扫描电子显微镜(X射线),以及热量标注 分析(TGA)。 当用于降解水溶液中的20mg L-1六价铬时,发现Fe-MOF在自然光下在120分钟内完全减少100mL溶液,并在XE灯照射下90分钟内的400ml溶液。 在自然阳光下,40分钟后,将在40ml溶液中除去98%的Cr(VI)。

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