Environmental Chemistry Letters

, Volume 11, Issue 2, pp 183–187

Large-scale green synthesis of Cu nanoparticles

  • A. B. S. Sastry
  • R. B. Karthik Aamanchi
  • Ch. Sree Rama Linga Prasad
  • B. S. Murty
Original Paper

DOI: 10.1007/s10311-012-0395-x

Cite this article as:
Sastry, A.B.S., Karthik Aamanchi, R.B., Sree Rama Linga Prasad, C. et al. Environ Chem Lett (2013) 11: 183. doi:10.1007/s10311-012-0395-x

Abstract

This article reports a novel, eco-friendly herbal method to synthesize Cu nanoparticles in large scales. Cu nanoparticles are an alternative to Ag and Au nanoparticles and have potential applications in many industrial areas. Many synthetic routes have been documented for the preparation of copper nanoparticles, but very few routes are eco-friendly and large-scale. We report here the preparation of Cu nanoparticles from aqueous CuSO4 using non-toxic and inexpensive materials like curd, milk, and herbal extracts such as tamarind and lemon juice as capping agents. X-ray diffraction and transmission electron microscopy show that produced particles are nanocrystalline copper 20–50 nm in size with a face-centered cubic structure. Fourier-transformed infrared spectroscopy evidences the role of organic acids in the capping process. The novelty of this work is the synthesis of Cu nanoparticles from CuSO4 without electricity and using non-toxic, cheap capping agents.

Keywords

Copper Nanoparticles Herbal extracts Organic acids Green technology Electroless deposition XRD TEM FTIR 

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • A. B. S. Sastry
    • 1
  • R. B. Karthik Aamanchi
    • 1
  • Ch. Sree Rama Linga Prasad
    • 2
  • B. S. Murty
    • 3
  1. 1.Srimaharshi Research Institute of Vedic TechnologySecunderabadIndia
  2. 2.Department of Metallurgical and Materials EngineeringRajiv Gandhi University of Knowledge TechnologiesIdupulapayaIndia
  3. 3.Department of Metallurgical and Materials EngineeringIndian Institute of Technology MadrasChennaiIndia

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