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Effective Degradation of Rh 6G Using Montmorillonite-Supported Nano Zero-Valent Iron under Microwave Treatment

机译：蒙脱土负载的纳米零价铁在微波处理下对Rh 6G的有效降解

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Nano zero-valent iron has drawn great attention for the degradation of organic dyes due to its high reactivity, large specific surface area, lightweight, and magnetism. However, the aggregation and passivation of iron nanoparticles may prohibit the wide use of it. A new composite material was prepared by loading nano zero-valent iron (nZVI) on montmorillonite (MMT) to overcome the above shortcomings and it was further used for the removal of Rhodamine 6G (Rh 6G) under microwave treatment in the present work. The effects of various parameters, including the initial concentration of Rh 6G, microwave power, and pH value were investigated. The new composite material (nZVI/MMT) showed an excellent degradation ability for removing Rh 6G, and the removal amount reached 500 mg/g within 15 min. The degradation rate reached 0.4365 min−1, significantly higher than most previous reports using other removal methods for Rh 6G.
机译：纳米零价铁因其高反应活性，大比表面积，重量轻和磁性而引起了有机染料降解的极大关注。但是，铁纳米颗粒的聚集和钝化可能会阻止其广泛使用。克服了上述缺点，通过在蒙脱土（MMT）上负载纳米零价铁（nZVI）制备了一种新的复合材料，该复合材料在本工作中通过微波处理进一步用于去除若丹明6G（Rh 6G）。研究了各种参数的影响，包括Rh 6G的初始浓度，微波功率和pH值。新的复合材料（nZVI / MMT）具有极好的降解Rh 6G的降解能力，在15分钟内的去除量达到500 mg / g。降解速率达到0.4365 min -1 ，大大高于以前使用Rh 6G的其他去除方法的大多数报道。

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