Effective adsorption and separation of organic pollutants from wastewater are essential to protecting the environment and human health. In this study, porous organic polymers (PAPOPs) containing a tri(polyhydroxy-phenyl-azo-phenyl) benzene skeleton structure were synthesized through diazotization coupling without any catalyst participation. It was found that PAPOPs have a high specific surface area, a mesoporous structure, a good thermal stability, and electronegativity. Based on these characteristics, PAPOPs demonstrated a maximum adsorption capacity of 1773.15 mg g^–1 for rhodamine B (RhB), 1091.75 mg g^–1 for Congo red, and 306.33 mg g^–1 for tetracycline hydrochloride. Furthermore, PAPOPs also exhibited good selectivity and an extremely fast adsorption rate for RhB. The adsorption efficiency of PAPOPs did not significantly decrease even after seven repeated uses, indicating their broad application prospects in wastewater treatment.

中文翻译：

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用于高效去除水中有机污染物的多羟基偶氮多孔有机聚合物

有效吸附和分离废水中的有机污染物对于保护环境和人类健康至关重要。本研究在没有任何催化剂参与的情况下，通过重氮化偶联合成了含有三（多羟基苯基-偶氮苯基）苯骨架结构的多孔有机聚合物（PAPOPs）。研究发现PAPOPs具有高比表面积、介孔结构、良好的热稳定性和电负性。基于这些特性，PAPOPs对罗丹明B（RhB）的最大吸附能力为1773.15 mg g ^–1 ，对刚果红的最大吸附能力为1091.75 mg g ^–1 ，对盐酸四环素的最大吸附能力为306.33 mg g ^–1 。此外，PAPOPs 对 RhB 还表现出良好的选择性和极快的吸附速率。 PAPOPs重复使用7次后吸附效率并未明显下降，表明其在废水处理中具有广阔的应用前景。