Abroma augusta Linn bark extract-mediated green synthesis of gold nanoparticles and its application in catalytic reduction

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Abstract

The bark extract of Abroma augusta Linn is rich in medicinally important phytochemicals including antioxidants and polyphenols. First one step green synthesis of gold nanoparticles (AuNPs) has been described utilizing the bark extract of Abroma augusta L. and chloroauric acid under very mild reaction conditions. The phytochemicals present in the bark extract acted both as a reducing as well as a stabilizing agent, and no additional stabilizing and capping agents were needed. Detailed characterizations of the stabilized AuNPs were carried out by surface plasmon resonance spectroscopy, high resolution transmission electron microscopy, and X-ray diffraction studies. The catalytic activity of the freshly synthesized gold nanoparticles has been demonstrated for the sodium borohydride reduction of 4-nitrophenol to 4-aminophenol, and the kinetics of the reduction reaction have been studied spectrophotometrically.

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Das, S., Bag, B. G., & Basu, R. (2015). Abroma augusta Linn bark extract-mediated green synthesis of gold nanoparticles and its application in catalytic reduction. Applied Nanoscience (Switzerland), 5(7), 867–873. https://doi.org/10.1007/s13204-014-0384-4

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