Biogenic synthesis of gold nanoparticles by yeast Magnusiomyces ingens LH-F1 for catalytic reduction of nitrophenols

2016 ◽  
Vol 497 ◽  
pp. 280-285 ◽  
Author(s):  
Xuwang Zhang ◽  
Yuanyuan Qu ◽  
Wenli Shen ◽  
Jingwei Wang ◽  
Huijie Li ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Reduction ◽  
Biogenic Synthesis ◽  
Magnusiomyces Ingens

scholarly journals Green Synthesis of Silver and Gold Nanoparticles via Sargassum serratifolium Extract for Catalytic Reduction of Organic Dyes

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 347
Author(s):  
Beomjin Kim ◽  
Woo Chang Song ◽  
Sun Young Park ◽  
Geuntae Park
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Catalytic Reduction ◽  
Organic Dyes ◽  
Low Cost ◽  
Inorganic Nanoparticles ◽  
X Ray ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron ◽  
Sargassum Serratifolium

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.

scholarly journals Carbon Supported Gold Nanoparticles for the Catalytic Reduction of 4-Nitrophenol

2019 ◽  
Vol 7 ◽  
Author(s):  
Hugo Rodríguez Molina ◽  
José Luis Santos Muñoz ◽  
María Isabel Domínguez Leal ◽  
Tomas Ramírez Reina ◽  
Svetlana Ivanova ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Reduction ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

Gold nanoparticles immobilised in a superabsorbent hydrogel matrix: facile synthesis and application for the catalytic reduction of toxic compounds

2020 ◽  
Vol 56 (8) ◽  
pp. 1263-1266 ◽  
Author(s):  
Hassan A. H. Alzahrani ◽  
Mark A. Buckingham ◽  
William P. Wardley ◽  
Richard D. Tilley ◽  
Nicholas Ariotti ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Strength ◽  
Catalytic Reduction ◽  
High Ionic Strength ◽  
Facile Synthesis ◽  
Superabsorbent Hydrogel ◽  
Toxic Compounds ◽  
Hydrogel Matrix ◽  
Catalytically Active

AuNP easily synthesised inside bulk hydrogel spheres; stable and catalytically active, even in high ionic strength environments.

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