Synthesizing catalyst supports with appropriate compositions and structures is crucial for reducing the sizes of metal nanoparticles and enhancing their catalytic activities. In this work, a series of monolithic hyper-cross-linked supports (HCP-CC) with hierarchical pores were synthesized. The monolithic structure facilitated easy operation in catalytic reactions, while the composition and structure of HCP-CC could be tailored simultaneously by utilizing the functional cross-linking agent cyanogen chloride. Furthermore, in situ loading of nano-Ag into HCP-CC resulted in the hybrid catalyst HCP-CC-Ag. The synergy of confinement and coordination effect controlled and limited the size of nano-Ag to approximately 3 nm, classifying them as ultrasmall nanoparticles, which ensured outstanding catalytic activity. This hybrid catalyst could improve the reaction rate constant to 0.423 min^–1; it efficiently promoted the degradation of organic dye and exhibited great universality and recyclability, making it a potential heterogeneous catalyst for dye wastewater treatment.

中文翻译：

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开发整体超交联聚苯乙烯负载的超小纳米银催化剂，用于增强 NaBH4 介导的染料降解


合成具有适当成分和结构的催化剂载体对于减小金属纳米颗粒的尺寸和增强其催化活性至关重要。在这项工作中，合成了一系列具有多级孔的整体超交联载体 （HCP-CC）。整体结构便于在催化反应中轻松操作，同时可以通过利用功能联剂氯化氰同时定制 HCP-CC 的组成和结构。此外，将纳米银原位负载到 HCP-CC 中产生了杂化催化剂 HCP-CC-Ag。约束和配位效应的协同作用控制并将纳米银的尺寸限制在大约 3 nm 左右，将它们归类为超小纳米颗粒，从而确保了出色的催化活性。该杂化催化剂可以将反应速率常数提高到 0.423 min^–1;它有效地促进了有机染料的降解，并表现出极强的通用性和可回收性，使其成为染料废水处理的潜在非均相催化剂。