Persistent organic pollutants (POPs) present a significant threat to both the environment and human health due to their pervasive presence and tendency to bioaccumulate. Herein, we have developed a sustainable photoelectrochemical sensing platform for the effective identification of a stable and representative perfluorooctane sulfonate (PFOS), which is based on the synergistic combination of titanium dioxide (TiO₂), graphene oxide (GO), and molecular nanocages (MNCs). The TiO₂/GO/MNCs heterostructure is engineered to provide a high-surface-area architecture for the efficient adsorption of POPs. Among them, the introduction of GO cleverly combined TiO₂ and MNCs by its surface functional groups (-COOH, -OH). The MNCs act as selective receptors, enabling the platform to discern specific pollutants with high sensitivity and specificity. The sustainability of the sensing platform is achieved by methanol washing, subsequent release of previously bound contaminants from the MNCs, and regeneration. This sustainable approach is in accordance with the principles of green chemistry and ensures the continuous and energy-efficient functioning of the sensing capabilities. Furthermore, the sustainable nature and multifunctional composition of this platform make it an attractive option for long-term and continuous monitoring of PFOS in diverse environmental matrices.

中文翻译：

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用于有效检测全氟辛烷磺酸盐的可持续光电化学传感平台


持久性有机污染物 （POP） 因其普遍存在和生物积累的趋势而对环境和人类健康构成重大威胁。在此，我们开发了一个可持续的光电化学传感平台，用于有效鉴定稳定且具有代表性的全氟辛烷磺酸盐 （PFOS），该平台基于二氧化钛 （TiO₂）、氧化石墨烯 （GO） 和分子纳米笼 （MNC） 的协同组合。TiO₂/GO/MNCs 异质结构旨在为 POP 的高效吸附提供高表面积结构。其中，GO 的引入通过其表面官能团 （-COOH， -OH） 巧妙地结合了 TiO₂ 和 MNCs。MNC 充当选择性受体，使平台能够以高灵敏度和特异性识别特定污染物。传感平台的可持续性是通过甲醇洗涤、随后从 MNC 中释放先前结合的污染物以及再生来实现的。这种可持续方法符合绿色化学原则，可确保传感功能的持续节能运行。此外，该平台的可持续性和多功能组成使其成为长期连续监测不同环境基质中 PFOS 的有吸引力的选择。