Polymerization-driven removal of pollutants in advanced oxidation processes (AOPs) offers a sustainable way for the simultaneous achievement of contamination abatement and resource recovery, supporting a low-carbon water purification approach. In this work, metal–organic frameworks (MOFs) glass complexes (g-ZIF-62@8) were used as a platform to enhance proton transfer through the confinement effect of nanopores, modulating proton coupled electron transfer (PCET) reaction to promote organic pollutant polymerization. The results show that the confinement effect of nanopores in ZIF-62 glass can significantly improve the proton and electron transfer behavior, the proton diffusion coefficient is increased by 4.9 times (2.91*10 to 1.43*10), the energy barrier of the PCET reaction can be reduced by 1.9 eV, and the reaction kinetic rate constant is increased from 0.0198 min to 0.20118 min. Photogenerated holes and Fe(IV = O), as the main reactive oxygen species (ROS), undergo PCET reaction with Bisphenol A (BPA) to convert them into phenoxy radicals, which are then polymerized into macromolecular organic compounds. PCET with proton-electron synergy was identified as a key driver of pollutant polymerization. This enables low-carbon purification and organic carbon recovery in wastewater. Our work provides new insights into the application of confinement effects to enhance proton and electron behavior to regulate pollutant polymerization toward sustainable water purification.

中文翻译：

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FeMOFs 玻璃的限域效应增强了有机污染物聚合的质子耦合电子转移反应，实现可持续水净化


高级氧化工艺（AOP）中聚合驱动的污染物去除为同时实现污染减排和资源回收提供了一种可持续的方式，支持低碳水净化方法。在这项工作中，金属有机框架（MOF）玻璃复合物（g-ZIF-62@8）被用作平台，通过纳米孔的限域效应增强质子转移，调节质子耦合电子转移（PCET）反应以促进有机反应污染物聚合。结果表明，ZIF-62玻璃中纳米孔的限域作用可以显着改善质子和电子的传递行为，质子扩散系数提高4.9倍（2.91*10~1.43*10），PCET反应的能垒提高可以降低1.9 eV，反应动力学速率常数从0.0198 min增加到0.20118 min。光生空穴和Fe(IV = O)作为主要活性氧(ROS)，与双酚A(BPA)发生PCET反应，转化为苯氧基自由基，然后聚合成高分子有机化合物。具有质子-电子协同作用的PCET被认为是污染物聚合的关键驱动因素。这使得废水中的低碳净化和有机碳回收成为可能。我们的工作为应用限制效应增强质子和电子行为以调节污染物聚合以实现可持续水净化提供了新的见解。