Mimusops elengi bark extract mediated green synthesis of gold nanoparticles and study of its catalytic activity

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• 作者：Rakhi Majumdar ; Braja Gopal Bag ; Pooja Ghosh
• 关键词：Gold nanoparticle ; Green synthesis ; Mimusops elengi ; Polyphenols ; Catalytic reduction ; Nitrophenol
• 刊名：Applied Nanoscience
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：6
• 期：4
• 页码：521-528
• 全文大小：1,613 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science
  Nanotechnology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：2190-5517

文摘

The bark extract of Mimusops elengi is rich in different types of plant secondary metabolites such as flavonoids, tannins, triterpenoids and saponins. The present study shows the usefulness of the bark extract of Mimusops elengi for the green synthesis of gold nanoparticles in water at room temperature under very mild conditions. The synthesis of the gold nanoparticles was complete within a few minutes without any extra stabilizing or capping agents and the polyphenols present in the bark extract acted as both reducing as well as stabilizing agents. The synthesized colloidal gold nanoparticles were characterized by HRTEM, surface plasmon resonance spectroscopy and X-ray diffraction studies. The synthesized gold nanoparticles have been used as an efficient catalyst for the reduction of 3-nitrophenol and 4-nitrophenol to their corresponding aminophenols in water at room temperature.