Catalysts | |
Green Synthesis of Silver and Gold Nanoparticles via Sargassum serratifolium Extract for Catalytic Reduction of Organic Dyes | |
SunYoung Park1  Geuntae Park2  Beomjin Kim2  WooChang Song2  | |
[1] Bio-IT Fusion Technology Research Institute, Pusan National University, Busan 46241, Korea;Department of Nanofusion Technology, Pusan National University, Busan 46241, Korea; | |
关键词: catalytic activity; gold nanoparticles; green synthesis; Sargassum serratifolium; silver nanoparticles; | |
DOI : 10.3390/catal11030347 | |
来源: DOAJ |
【 摘 要 】
The green synthesis of inorganic nanoparticles (NPs) using bio-materials has attained enormous attention in recent years due to its simple, eco-friendly, low-cost and non-toxic nature. In this work, silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) were synthesized by the marine algae extract, Sargassum serratifolium (SS). The characteristic studies of bio-synthesized SS-AgNPs and SS-AuNPs were carried out by using ultraviolet–visible (UV–Vis) absorption spectroscopy, dynamic light scattering (DLS), high-resolution transmission electron microscope (HR-TEM), selected area electron diffraction (SAED), energy-dispersive X-ray spectroscopy (EDX), X-ray powder diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). Phytochemicals in the algae extract, such as meroterpenoids, acted as a capping agent for the NPs’ growth. The synthesized Ag and Au NPs were found to have important catalytic activity for the degradation of organic dyes, including methylene blue, rhodamine B and methyl orange. The reduction of dyes by SS-AgNPs and -AuNPs followed the pseudo-first order kinetics.
【 授权许可】
Unknown