Ease of catalyst separation from reaction mixtures represents a significant advantage in heterogeneous photocatalytic wastewater treatment. However, the activity of the catalyst strongly depends on its surface-to-volume ratio. Here, we present an approach based on cylindrical polybutadiene-block-poly(2-vinylpyridine) polymer brushes as template, which can be simultaneously loaded with zinc oxide (ZnO) and gold (Au) nanoparticles. Pyrolytic template removal of the polymer yields in mesostructured ZnO/Au composites, showing higher efficiencies in the photocatalytic degradation of ciprofloxacin and levofloxacin (generic antibiotics present in clinical wastewater) as compared to neat mesostructured ZnO. Upscaling of the presented catalyst is straightforward promising high technical relevance.

易于从反应混合物中分离催化剂代表了在非均相光催化废水处理中的显着优势。然而，催化剂的活性强烈取决于其表面体积比。在这里，我们提出了一种基于圆柱状聚丁二烯嵌段-聚（2-乙烯基吡啶）聚合物刷的方法，该刷可以同时加载氧化锌（ZnO）和金（Au）纳米粒子。热解模板去除中型结构的ZnO / Au复合材料中的聚合物，与纯中型结构的ZnO相比，环丙沙星和左氧氟沙星（临床废水中存在的通用抗生素）的光催化降解效率更高。所提出的催化剂的升级是直接有希望的高技术相关性。