Herein, we report a simple one-pot synthesis of water-dispersible gold nanoparticles (AuNPs) by using meso-tetra(methyl) meso-tetra hydrazide-functionalized calix[4]pyrrole (ECPTH) as both reducing and stabilizing template. The characterization of ECPTH-AuNPs has been carried out by UV-Vis spectroscopy, transmission electron microscope, X-ray diffraction (XRD), dynamic light scattering (DLS), and zeta potential techniques. The spherical shaped nanoparticles are highly stable with an average size of 8 ± 2 nm. The mechanistic insights rendered by the computational study have suggested that ECPTH can successfully cap the Au via utilizing the hydrazide arms. The nanoparticles functioned as an effective heterogeneous catalyst for the 4-nitrophenol reduction and ECPTH as capping ligand enhances the catalytic activity via a synergistic effect. This work contributes a new catalytic pathway for the degradation of hazardous and toxic pollutants using highly efficient and cost-effective supramolecular-functionalized nanocatalyst. Graphical Abstract Graphical Abstract Graphical Abstract

中文翻译：

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杯[4]吡咯模板化金纳米粒子的简便构建：有效还原4-硝基苯酚的计算见解和应用

在此，我们报告了使用内消旋四（甲基）内消旋四酰肼官能化杯[4]吡咯（ECPTH）作为还原和稳定模板的水分散性金纳米粒子（AuNPs）的简单一锅法合成。ECPTH-AuNPs 的表征已通过紫外-可见光谱、透射电子显微镜、X 射线衍射 (XRD)、动态光散射 (DLS) 和 zeta 电位技术进行。球形纳米颗粒高度稳定，平均尺寸为 8 ± 2 nm。计算研究提供的机械见解表明 ECPTH 可以通过利用酰肼臂成功地封闭 Au。纳米颗粒作为 4-硝基苯酚还原的有效多相催化剂，ECPTH 作为封端配体通过协同效应增强了催化活性。这项工作为使用高效且具有成本效益的超分子功能化纳米催化剂降解有害和有毒污染物提供了一种新的催化途径。图形抽象图形抽象图形抽象