Facile construction of calix[4]pyrrole-templated gold nanoparticles: computational insights and application for efficient reduction of 4-nitrophenol

IF 2.2 4区 工程技术 Q2 Chemistry Gold Bulletin Pub Date : 2019-11-15 DOI:10.1007/s13404-019-00265-x
Anita Kongor, Manthan Panchal, Mohd Athar, Keyur Bhatt, P. C. Jha, Vinod Jain
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引用次数: 3

Abstract

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.

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杯[4]吡咯模板金纳米颗粒的简单构建:计算见解和高效还原4-硝基苯酚的应用
本文报道了一种简单的单锅合成水分散金纳米颗粒(AuNPs)的方法,该方法使用中介四(甲基)中四酰腙功能化杯[4]吡咯(ECPTH)作为还原和稳定模板。采用紫外可见光谱、透射电子显微镜、x射线衍射(XRD)、动态光散射(DLS)和zeta电位技术对ECPTH-AuNPs进行了表征。制备的球形纳米颗粒具有较高的稳定性,平均粒径为8±2 nm。计算研究的机理表明,ECPTH可以通过利用肼臂成功地覆盖Au。纳米颗粒作为4-硝基苯酚还原的有效非均相催化剂,ECPTH作为盖层配体通过协同作用增强了催化活性。本研究为利用高效、低成本的超分子功能化纳米催化剂降解有害有毒污染物开辟了新的催化途径。
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来源期刊
Gold Bulletin
Gold Bulletin 工程技术-材料科学:综合
CiteScore
3.30
自引率
4.50%
发文量
0
审稿时长
3 months
期刊介绍: Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.
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