Dried bamboo shoots (DBS) are a natural resource with inherent silica content, which can serve as sacrificial templates for the formation of mesoporous carbon but also promote the generation of silicon carbide (SiC). Building on this, we introduced mesoporous and graphitic carbon/SiC (SiC/BSC) as the CDI electrode for copper ion (Cu²⁺) removal. Mesoporous carbon electrodes facilitate faster ion transport, diffusion, and electron-transfer pathways. Furthermore, SiC accelerates electron transfer and promotes faradic redox reactions during the charge and discharge processes. Consequently, the synergistic effect of SiC/BSC mesoporous carbon material leads to a promising electrode for Cu²⁺ capacitive deionization. Leveraging these unique properties, the SiC/BSC electrode material exhibits an outstanding CDI performance of 381.5 mg/g at 1.8 V. This study offers a strategy for the preparation of efficient mesoporous carbon materials as CDI electrodes, specifically tailored for the deionization of Cu²⁺ ions.

中文翻译：

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盐干竹笋衍生介孔碳固有掺杂 SiC 和氮用于电容去离子

干竹笋（DBS）是一种固有二氧化硅含量的自然资源，可以作为形成介孔碳的牺牲模板，同时也促进碳化硅（SiC）的生成。在此基础上，我们引入介孔石墨碳/SiC (SiC/BSC) 作为 CDI 电极，用于去除铜离子 (Cu ²⁺ )。介孔碳电极有利于更快的离子传输、扩散和电子转移途径。此外，SiC在充电和放电过程中加速电子转移并促进法拉第氧化还原反应。因此，SiC/BSC介孔碳材料的协同效应导致了一种有前途的Cu ²⁺电容去离子电极。利用这些独特的性能，SiC/BSC 电极材料在 1.8 V 下表现出 381.5 mg/g 的出色 CDI 性能。这项研究提供了一种制备高效介孔碳材料作为 CDI 电极的策略，专门用于 Cu ^{2的去离子化+}离子。