scholarly journals Microwave Synthesis of Silver Nanoparticles

Nano Hybrids ◽  
2013 ◽  
Vol 4 ◽  
pp. 99-112 ◽  
Author(s):  
Sonali Saha ◽  
M.M. Malik ◽  
M.S. Qureshi

In this work, a green route for synthesis of Ag nanoparticles is presensted. For the synthesis of Ag nanoparticles, tulasi leaf extract (Ocimum leaf) in combination with microwave irradiation was used which yielded stable spherical Ag nanoparticle in the range of 5-50 nm. Surface morphology of nanoparticle was analyzed by XRD and TEM. UV-Vis analysis was also carried out to characterize the synthesized nanoparticles. The main feature of the process is that it is carried out in a very short span of time in comparison to other conventional physical, chemical and biological methods. Microwave assisted synthesis suppresses the enzymatic action to keep the process easy, fast and eco-friendly.

2019 ◽  
Vol 126 ◽  
pp. 170-177 ◽  
Author(s):  
Anukorn Phuruangrat ◽  
Sineenat Siri ◽  
Paweena Wadbua ◽  
Somchai Thongtem ◽  
Titipun Thongtem

RSC Advances ◽  
2020 ◽  
Vol 10 (35) ◽  
pp. 20676-20681
Author(s):  
Renata Pascoal Illanes Tormena ◽  
Eliane Vieira Rosa ◽  
Bruna de Fátima Oliveira Mota ◽  
Juliano Alexandre Chaker ◽  
Christopher William Fagg ◽  
...  

Silver nanoparticles with low toxicity and improved antibacterial activity are obtained by a green route using microwave-assisted synthesis with plant extract.


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Aklilu Guale Bekru ◽  
Osman Ahmed Zelekew ◽  
Dinsefa Mensur Andoshe ◽  
Fedlu Kedir Sabir ◽  
Rajalakshmanan Eswaramoorthy

Copper-oxide-based nanomaterials play an important role as a low-cost alternative to nanoparticles of precious metals for the catalytic reduction of 4-nitrophenols. In this study, CuO nanoparticles were synthesized by a microwave-assisted method using Cordia africana Lam. leaf extract for reduction or stabilization processes. The synthesized CuO nanoparticles (NPs) were characterized using X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The analysis indicated that nanocrystals of the monoclinic CuO phase having a cluster of agglomerated morphology with a crystallite size of about 9 nm were synthesized. We also evaluated the catalytic performance of CuO NPs against 4-nitrophenol (4-NP) reduction. The catalyst has shown excellent performance completing the reaction within 12 min. Furthermore, the performance of CuO NPs synthesized at different pH values was investigated, and results indicated that the one synthesized at pH 7 reduced 4-NP effectively in shorter minutes compared to those obtained at higher pH values. The CuO NPs synthesized using Cordia africana Lam. leaf extract exhibited a better reducing capacity with an activity parameter constant of 75.8 min−1·g−1. Thus, CuO synthesized using Cordia africana Lam. holds a potential application for the catalytic conversion of nitroarene compounds into aminoarene.


2012 ◽  
Vol 3 (2) ◽  
pp. 177-179
Author(s):  
Dr. K.Vinoth Kumar Dr. K.Vinoth Kumar ◽  
◽  
Dr. C. Udayasoorian Dr. C. Udayasoorian

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