TY - JOUR AU - Lê, Thị Kim Anh AU - Lê, Đại Vương AU - Võ Văn, Quốc Bảo AU - Nguyễn, Thị Phương Nga AU - Nguyễn, Hữu Thịnh AU - Nguyễn, Thị Quỳnh Anh AU - Phạm , Thị Thảo Hiền PY - 2022/03/31 Y2 - 2024/03/28 TI - Synthesis of silver-nanoparticles with aqueous extract of robusta plant leaves as reducing agent JF - Hue University Journal of Science: Natural Science JA - hueuni-jns VL - 131 IS - 1A SE - DO - 10.26459/hueunijns.v131i1A.6295 UR - https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6295 SP - 119-126 AB - <p>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 (AgNO<sub>3</sub>). The influence of extraction time and the solid-liquid ratio, the concentration of AgNO<sub>3</sub>, 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, <em>V</em><sub>extract</sub>/<em>V</em><sub>AgNO3</sub> 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.</p> ER -