A novel self-breathing air-diffusion rod graphite electrode (ADE-RG) engineered with spatial hydrophobic microenvironments was developed to enhance HO production without external air aeration. The microenvironments, created through thermal shaking-induced turbulence and centrifugal effect, significantly improved the air-diffusion capability. This innovation led to the increase in HO generation (3.36 times higher than that in the unmodified system) due to a locally enhanced electric field, increased oxygen transfer rate, and improved selectivity for two-electron transfer process. Furthermore, incorporating polyepoxysuccinic acid into the electrolyte not only prevents electrode scaling but also minimizes HO decomposition, culminating in the HO concentration of 50.64 ± 2.92 mg L cm. Notably, the system performed prominently in treating industrial rifampicin wastewater, achieving a degradation efficiency of 95.29 ± 0.47%, even under high-loading conditions (initial COD was 22,898.50 ± 405.17 mg L). These results indicate the significant potential of the self-breathing ADE-RG system in broad-scale wastewater treatment applications.

中文翻译：

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设计一种由空间疏水微环境调节的自呼吸电极，具有稳定的 H2O2 生成，用于废水处理

开发了一种采用空间疏水微环境设计的新型自呼吸空气扩散棒石墨电极（ADE-RG），无需外部空气曝气即可提高 H2O 产量。通过热震动引起的湍流和离心效应创建的微环境显着提高了空气扩散能力。由于局部增强的电场、氧转移速率的提高以及双电子转移过程的选择性的提高，这项创新导致 H2O 生成量增加（比未修改的系统高 3.36 倍）。此外，将聚环氧琥珀酸加入电解液中不仅可以防止电极结垢，还可以最大限度地减少 H2O 分解，最终使 H2O 浓度达到 50.64 ± 2.92 mg L cm。值得注意的是，该系统在处理工业利福平废水方面表现突出，即使在高负荷条件下（初始COD为22,898.50±405.17 mg·L），降解效率也达到95.29±0.47%。这些结果表明自呼吸 ADE-RG 系统在大规模废水处理应用中具有巨大潜力。