Ag nanoparticles were synthesized and stabilized on a polymeric support, poly([Formula: see text]-isopropyl acrylamide-co-itaconic acid)/POSS, by simply reducing Ag[Formula: see text] ions adsorbed in the interior of the polymeric network. The prepared Ag@p(NIPAM-IA)/POSS was used as an efficient and recyclable catalyst for removal of the 4-nitrophenol (4-NP) contaminant by NaBH4-induced reduction to 4-aminophenol (4-AP) in aqueous solution. Different conditions including Ag content and amount of the nanocomposite, and also temperature of the 4-NP reduction were investigated. Also, two kinetic models, zero-order and first-order kinetics, were studied for the reduction of 4-NP to 4-AP.

中文翻译：

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稳定在立方多面体低聚倍半硅氧烷交联聚（N-异丙基丙烯酰胺-衣康酸）上的银纳米粒子：一种有效的 4-硝基苯酚还原催化剂

通过简单地还原吸附在聚合物网络内部的 Ag[分子式：见文字] 离子，在聚合物载体聚（[分子式：参见文本]-异丙基丙烯酰胺-共衣康酸）/POSS 上合成并稳定了银纳米颗粒. 制备的 Ag@p(NIPAM-IA)/POSS 用作高效且可回收的催化剂，用于通过 NaBH2 去除 4-硝基苯酚 (4-NP) 污染物4-在水溶液中诱导还原为 4-氨基苯酚 (4-AP)。研究了不同条件，包括纳米复合材料的银含量和数量，以及 4-NP 还原的温度。此外，研究了将 4-NP 还原为 4-AP 的两种动力学模型，即零级和一级动力学。