Abstract More discrete and active nano-scale zero-valent iron (NZVI) particles were obtained by assembling them on the surface of carbonized fungi (F) in this study. NZVI/F composites can totally remove 0.25 mmol/L U(VI) in 0.5 h at pH 6.5. Both sorption and reductive precipitation of U(VI) resulted in the high removal. Preliminary evidence showed that the influence of ions (Na+, K+, Ca2+, Mg2+, and CO32−) on NZVI/F composites reactivity varied with system pH. Our findings could provide an essential start in the treatment of water containing U(VI) and multiply coexistent ions, and open the doorways for the application of NZVI/F composites.

中文翻译：

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碳化真菌负载的纳米级零价铁对 U(VI) 的反应性受天然离子影响

摘要 本研究通过将纳米零价铁（NZVI）颗粒组装在碳化真菌（F）表面，获得了更多离散和活性的纳米级零价铁（NZVI）颗粒。在 pH 6.5 条件下，NZVI/F 复合材料可在 0.5 小时内完全去除 0.25 mmol/LU(VI)。U(VI) 的吸附和还原沉淀都导致高去除率。初步证据表明，离子（Na+、K+、Ca2+、Mg2+ 和 CO32-）对 NZVI/F 复合材料反应性的影响随系统 pH 值而变化。我们的发现可以为处理含有 U(VI) 和多种共存离子的水提供一个重要的开端，并为 NZVI/F 复合材料的应用打开大门。