Green synthesis of silver nanoparticles using green tea leaves: experimental study on the morphological, rheological and antibacterial behaviour
| Autor: | Saeed Shoja, V. Nikkhah, Marzieh Sarafraz, Maryam Nakhjavani, M.M. Sarafraz |
|---|---|
| Přispěvatelé: | Nakhjavani, Maryam, Nikkhah, V, Sarafraz, MM, Shoja, Saeed, Sarafraz, Marzieh |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Fluid Flow and Transfer Processes
silver nanoparticles thermal conductivity measurment Materials science Scanning electron microscope 020209 energy Nanoparticle Nanotechnology 02 engineering and technology Conductivity 021001 nanoscience & nanotechnology Condensed Matter Physics Silver nanoparticle antimicrobial behaviour Thermal conductivity measurement Thermal conductivity Nanofluid Chemical engineering 0202 electrical engineering electronic engineering information engineering Zeta potential eco-friendly nanofluid 0210 nano-technology |
| Popis: | 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. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|