This study aims at the development of novel and highly sulfonated hyper-cross-linked polymers (sHCPs) using facile and one-step synthetic approach, and verification of the potential applicability of the as-synthesized polymers in the adsorptive removal of various antibiotic pollutants under environmentally relevant conditions. The sHCPs synthesized in this work were capable of highly efficient removal of antibiotic pollutants at relatively high (30 mg/L) and low (50 µg/L) initial concentrations, both from a simple as well as complex water matrices. The rate of ciprofloxacin removal and the adsorption capacity observed for the most efficient adsorbent (q = 757.7 mg/g) were found to be approximately twice higher than that established for other previously reported sulfonated polymers prepared via post-synthetic sulfonation (q = 476.9 mg/g), and commercial polymer-based adsorbents (e.g. Amberlyst-15, q = 438.5 mg/g). The highest adsorption capacity was observed at pH close to neutral for polar antibiotic pollutants that contain protonated functional groups and exist in cationic or zwitterion form (e.g. ciprofloxacin and tetracycline). The reported results clearly imply that highly sulfonated hyper-cross-linked polymers are promising candidates for potential practical application for the elimination of organic pollutants from aqueous media, being capable of selective removal of various antibiotics via ionic interaction even in the presence of a great excess of other cations, anions and organic matter naturally existing in environmentally relevant water samples (e.g. river water).

中文翻译：

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高度磺化的超交联聚合物作为有前景的吸附剂，可有效、选择性地去除水中的环丙沙星

本研究旨在采用简便的一步合成方法开发新型高度磺化的超交联聚合物（sHCP），并验证所合成的聚合物在吸附去除各种抗生素污染物方面的潜在适用性。环境相关条件。这项工作中合成的 sHCP 能够从简单和复杂的水基质中高效去除初始浓度相对较高 (30 mg/L) 和较低 (50 µg/L) 的抗生素污染物。发现最有效的吸附剂 (q = 757.7 mg/g) 的环丙沙星去除率和吸附容量大约比之前报道的通过后合成磺化制备的其他磺化聚合物 (q = 476.9 mg) 所建立的值高出大约两倍/g），以及商用聚合物吸附剂（例如 Amberlyst-15，q = 438.5 mg/g）。对于含有质子化官能团并以阳离子或两性离子形式存在的极性抗生素污染物（例如环丙沙星和四环素），在pH值接近中性时观察到最高的吸附能力。报告的结果清楚地表明，高度磺化的超交联聚合物是消除水介质中有机污染物的潜在实际应用的有希望的候选者，即使在存在大量过量的情况下，也能够通过离子相互作用选择性去除各种抗生素。环境相关水样（例如河水）中自然存在的其他阳离子、阴离子和有机物。