Synthesis of Chiral, Crystalline Au-Nanoflower Catalyst Assisting Conversion of Rhodamine-B to Rhodamine-110 and a Single-Step, One-Pot, Eco-Friendly Reduction of Nitroarenes

被引：17

作者：

Bera, Kallol ^{[1
]}

Ghosh, Tanmay ^{[2
]}

Basak, Soumen ^{[1
]}

机构：

[1] Saha Inst Nucl Phys, Div Chem Sci, Kolkata 700064, India

[2] Saha Inst Nucl Phys, Surface Phys & Mat Sci Div, Kolkata 700064, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2015年 / 119卷 / 04期

关键词：

REAL-TIME UPTAKE; GOLD NANOPARTICLES; ACTIVE-SITE; AQUEOUS-SOLUTION; LIVING CELLS; GROWTH; OXIDATION; NANOSTRUCTURES; NANOCLUSTERS; MERCURY(II);

D O I：

10.1021/jp5086125

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Chiral, multipetal gold nanoflowers (AuNFs) with crystalline tips were synthesized in high yield through the reduction of HAuCl4 in water in the presence of preformed coresatellite Ag nanoparticle (AgNP) seeds. High-resolution transmission electron microscopic (HRTEM) images and tomography reveal the actual crystallographic and 3-dimensional structural profile of the AuNFs. In a first demonstration of this kind, a Hg2+/AuNF combination was shown to catalyze the direct transformation of rhodamine-B to rhodamine-110 in water. The AuNFs were also shown to catalyze reduction of nitroarenes to its corresponding aminoarene with similar to 90% conversion efficiency by a single-step, one-pot, eco-friendly protocol. There are numerous opportunities for using these unique AuNFs in catalysis, sensing, imaging, drug delivery, and opto-photonics.

引用

页码：1800 / 1808

页数：9