Improving the selectivity of the reactive intermediates such as ClO− and •OH by modifying nickel foam electrodes with ion exchangeable layered materials would greatly enhance the efficiency of high-salinity wastewater treatment. A universal pattern was verified herein that through functioning as a permeable overlayer regulating the transport of cations/anions, ClO− and •OH could be the predominant intermediates in the anionic/cationic layered material modified electrode. The significance of selectivity enhancement includes improving electrochemical efficiency and reducing the usage of chemical reagents. For instance, it is demonstrated that electrochemically degrading high salinity azo wastewater using decorated electrodes would be as effective as chemical treatment. Furthermore, electrochemical oxidation using cation layered material modified electrode could reduce the pKa of the oxidized cellulose filter paper as effectively as using H2O2.

中文翻译：

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通过用层状材料改性电极，提高活性中间体的选择性，用于绿色高盐度废水处理


通过使用离子交换层状材料改性泡沫镍电极来提高反应性中间体（如 ClO-和•OH）的选择性，将大大提高高盐度废水处理的效率。本文验证了一个通用模式，通过作为调节阳离子/阴离子传输的可渗透覆盖层，ClO-和•OH可以成为阴离子/阳离子层状材料改性电极中的主要中间体。选择性增强的意义包括提高电化学效率和减少化学试剂的使用。例如，研究表明，使用装饰电极电化学降解高盐度偶氮废水与化学处理一样有效。此外，使用阳离子层状材料改性电极的电化学氧化可以像使用 H2O2 一样有效地降低氧化纤维素滤纸的 pKa。