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Type: Journal article
Title: Green synthesis of silver nanoparticles using green tea leaves: experimental study on the morphological, rheological and antibacterial behaviour
Author: Nakhjavani, M.
Nikkhah, V.
Sarafraz, M.
Shoja, S.
Sarafraz, M.
Citation: Heat and Mass Transfer, 2017; 53(10):3201-3209
Publisher: Springer
Issue Date: 2017
ISSN: 0947-7411
Statement of
Maryam Nakhjavani, V. Nikkhah, M.M. Sarafraz, Saeed Shoja, Marzieh Sarafraz
Abstract: In this paper, silver nanoparticles are produced via green synthesis method using green tea leaves. The introduced method is cost-effective and available, which provides condition to manipulate and control the average nanoparticle size. The produced particles were characterized using x-ray diffraction, scanning electron microscopic images, UV visualization, digital light scattering, zeta potential measurement and thermal conductivity measurement. Results demonstrated that the produced samples of silver nanoparticles are pure in structure (based on the x-ray diffraction test), almost identical in terms of morphology (spherical and to some extent cubic) and show longer stability when dispersed in deionized water. The UV-visualization showed a peak in 450 nm, which is in accordance with the previous studies reported in the literature. Results also showed that small particles have higher thermal and antimicrobial performance. As green tea leaves are used for extracting the silver nanoparticles, the method is eco-friendly. The thermal behaviour of silver nanoparticle was also analysed by dispersing the nanoparticles inside the deionized water. Results showed that thermal conductivity of the silver nano-fluid is higher than that of obtained for the deionized water. Activity of Ag nanoparticles against some bacteria was also examined to find the suitable antibacterial application for the produced particles.
Keywords: Silver nanoparticles; eco-friendly nanofluid; antimicrobial behaviour; thermal conductivity measurement
Rights: © Springer-Verlag Berlin Heidelberg 2017
RMID: 0030071124
DOI: 10.1007/s00231-017-2065-9
Appears in Collections:Medicine publications

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