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One-step, low-temperature fabrication of CdS quantum dots by watermelon rind: a green approach

Authors Lakshmipathy R, Sarada NC, Chidambaram K, Pasha S

Received 5 January 2015

Accepted for publication 31 March 2015

Published 1 October 2015 Volume 2015:10(Supplement 1 Challenges in biomaterials research) Pages 183—188

DOI https://doi.org/10.2147/IJN.S79988

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Editor who approved publication: Dr Thomas J Webster


Rajasekhar Lakshmipathy,1 Nallani Chakravarthula Sarada,2 K Chidambaram,3 Sk Khadeer Pasha3

1Centre for Material Science, KCG College of Technology, Chennai, Tamil Nadu, India; 2Environmental and Analytical Chemistry Division, 3Material Physics Division, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu, India

Abstract: We investigated the one-step synthesis of CdS nanoparticles via green synthesis that used aqueous extract of watermelon rind as a capping and stabilizing agent. Preliminary phytochemical analysis depicted the presence of carbohydrates which can act as capping and stabilizing agents. Synthesized CdS nanoparticles were characterized using UV-visible, Fourier transform infrared spectroscopy, X-ray diffraction, EDX, dynamic light scattering, transmission electron microscopy, and atomic force microscopy techniques. The CdS nanoparticles were found to be size- and shape-controlled and were stable even after 3 months of synthesis. The results suggest that watermelon rind, an agro-waste, can be used for synthesis of CdS nanoparticles without any addition of stabilizing and capping agents.

Keywords: green synthesis, nanoparticles, biomimetic, atomic force microscopy

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