Synthesis of silver-nanoparticles with aqueous extract of robusta plant leaves as reducing agent
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silver nanoparticles
reducing agent nano bạc
lá vối
tác nhân khử

How to Cite

Lê TKA, Lê Đại V, Võ Văn QB, Nguyễn TPN, Nguyễn HT, Nguyễn TQA, Phạm TTH. Synthesis of silver-nanoparticles with aqueous extract of robusta plant leaves as reducing agent. hueuni-jns [Internet]. 2022Mar.31 [cited 2022Aug.14];131(1A):119-26. Available from:


In this study, we use the aqueous extract of Robusta plant leaves as a reducing agent and alginate as a surfactant to synthesize silver nanoparticles from silver nitrate (AgNO3). The influence of extraction time and the solid-liquid ratio, the concentration of AgNO3, the volume ratio between silver nitrate solution and the extract of Robusta leaves, and the reaction time on the synthesis were investigated. The optimal conditions are as follows: 15 g of leaves/200 mL, silver nitrate concentration 4 mM, Vextract/VAgNO3 4:100, 1% sodium alginate solution, and reaction time 45 minutes. The obtained solution of silver nanoparticles has a yellow-brown color. The TEM, XRD, and FT-IR measurements of the samples show that the silver nanoparticles have been successfully synthesized. The particles are spherical with an even size and 19.0-26.6 nm in diameter.
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