Abstract Cu-BTC, as one of the metal organic frameworks (MOFs), was prepared and employed for the capture of elemental mercury (Hg0) in sintering gas. The material was characterized using TGA, XPS, XRD, BET surface measurement and TEM. Results showed that Cu-BTC had good microscopic morphologies, large BET surface area and high thermal stability, which make it suitable for sintering gas. The Hg0 removal performance was investigated under different conditions. Cu-BTC had limited Hg0 removal ability without HCl, but exhibited an excellent Hg0 removal efficiency when 15 ppm HCl was added. HCl and O2 played an important role for the Hg0 removal efficiency when they were at low concentration. According to the results of Hg0 removal performance and physiochemical characterization, the mechanism of Hg0 capture was speculated with and without HCl. Furthermore, the influence of SO2, NO and H2O were studied. SO2 has inhibition effect on the removal of Hg0, while NO can promote the Hg0 removal. As for H2O, it has nearly no effect on mercury removal. When HCl and O2 were at high concentration, the influence of SO2, NO and H2O are not significant.

中文翻译：

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Cu-BTC作为一种从烧结气体中去除元素汞的新型材料

摘要 Cu-BTC 作为金属有机骨架（MOFs）之一，被制备并用于捕获烧结气体中的元素汞（Hg0）。使用 TGA、XPS、XRD、BET 表面测量和 TEM 对材料进行表征。结果表明，Cu-BTC具有良好的微观形貌、较大的BET表面积和较高的热稳定性，使其适用于烧结气体。在不同条件下研究了 Hg0 去除性能。Cu-BTC 在没有 HCl 的情况下具有有限的 Hg0 去除能力，但在添加 15 ppm HCl 时表现出优异的 Hg0 去除效率。HCl 和 O2 在低浓度时对 Hg0 去除效率起重要作用。根据Hg0去除性能和理化表征的结果，推测有和没有HCl的Hg0捕获机制。此外，还研究了 SO2、NO 和 H2O 的影响。SO2对Hg0的去除有抑制作用，而NO对Hg0的去除有促进作用。至于H2O，它对除汞几乎没有影响。当HCl和O2浓度较高时，SO2、NO和H2O的影响不显着。