The current scenario of environmental pollution attributed to industrial ecotoxicants envisages the imperative necessity not just to detect highly toxic heavy metal ions but also to concurrently eliminate them, to ensure the sustainable safeguard of the environment. However, the contemporaneous detection and removal of mercury ions is seldom reported. Herein, a triazine-based porous organic polymer, POP CCAD, consisting of nitrogen-rich binding sites, has been designed and synthesized via a simple nucleophilic substitution reaction using cyanuric chloride and adenine as the starting materials. POP CCAD could achieve its application as a bifunctional material for the fluorescence sensing of Hg²⁺ with a detection limit of 8.4 nM and a removal capacity of 460 mg g^–1. This work reveals the capability of porous organic polymers, serving not only as fluorescent sensors for mercury ions but also as molecular sieves for their separation.

中文翻译：

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三嗪-腺嘌呤锚定多孔有机聚合物：作为汞离子荧光传感器和分子筛的综合方法

当前工业生态毒物污染环境的情况表明，不仅需要检测高毒重金属离子，而且还需要同时消除它们，以确保环境的可持续保护。然而，同时检测和去除汞离子的报道却很少。在此，以三聚氯氰和腺嘌呤为起始原料，通过简单的亲核取代反应设计并合成了一种由富氮结合位点组成的三嗪基多孔有机聚合物（POP CCAD）。 POP CCAD可以实现作为Hg ²⁺荧光传感双功能材料的应用，检测限为8.4 nM，去除能力为460 mg g ^–1。这项工作揭示了多孔有机聚合物的能力，不仅可以用作汞离子的荧光传感器，还可以用作分离汞离子的分子筛。