Green synthesis of gold nanoparticles reduced and stabilized by squaric acid and supported on cellulose fibers for the catalytic reduction of 4-nitrophenol in water

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91185-91191 ◽  
Author(s):  
Md. Tariqul Islam ◽  
Julio E. Padilla ◽  
Noemi Dominguez ◽  
Daisy C. Alvarado ◽  
Md Shah Alam ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Sodium Borohydride ◽  
Catalytic Reduction ◽  
Cellulose Fibers ◽  
Squaric Acid

Gold nanoparticles reduced and stabilized by sodium squarate in water that attach to cellulose fibers and catalyse the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with sodium borohydride.

Microwave-Assisted Green Synthesis of Gold Nanoparticles Using Olibanum Gum (Boswellia serrate) and its Catalytic Reduction of 4-Nitrophenol and Hexacyanoferrate (III) by Sodium Borohydride

2016 ◽  
Vol 28 (3) ◽  
pp. 917-935 ◽  
Author(s):  
Atnafu Guadie Assefa ◽  
Ayal Adugna Mesfin ◽  
Mulugeta Legesse Akele ◽  
Addis Kokeb Alemu ◽  
Bhagavanth Reddy Gangapuram ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Sodium Borohydride ◽  
Catalytic Reduction ◽  
Microwave Assisted

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 Green synthesis and in situ immobilization of gold nanoparticles and their application for the reduction of p-nitrophenol in continuous-flow mode

RSC Advances ◽  
2019 ◽  
Vol 9 (16) ◽  
pp. 9193-9197 ◽  
Author(s):  
Rózsa Szűcs ◽  
Diána Balogh-Weiser ◽  
Evelin Sánta-Bell ◽  
Eszter Tóth-Szeles ◽  
Tamás Varga ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Sodium Borohydride ◽  
Continuous Flow ◽  
Flow Mode ◽  
In Situ Immobilization ◽  
Polymer Beads

Gold nanoparticles synthesized using agarose and supported in macroporous polymer beads were used in continuous-flow mode in reduction of p-nitrophenol by sodium borohydride.

Microwave assisted rapid green synthesis of gold nanoparticles using Annona squamosa L peel extract for the efficient catalytic reduction of organic pollutants

2018 ◽  
Vol 1167 ◽  
pp. 305-315 ◽  
Author(s):  
Bhagavanth Reddy Gangapuram ◽  
Rajkumar Bandi ◽  
Madhusudhan Alle ◽  
Ramakrishna Dadigala ◽  
Girija Mangatayaru Kotu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Organic Pollutants ◽  
Catalytic Reduction ◽  
Annona Squamosa ◽  
Microwave Assisted ◽  
Peel Extract

Sodium rhodizonate induced formation of gold nanoparticles supported on cellulose fibers for catalytic reduction of 4-nitrophenol and organic dyes

2017 ◽  
Vol 5 (5) ◽  
pp. 4185-4193 ◽  
Author(s):  
Md. Tariqul Islam ◽  
Noemi Dominguez ◽  
Md. Ariful Ahsan ◽  
Homero Dominguez-Cisneros ◽  
Pamela Zuniga ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Reduction ◽  
Organic Dyes ◽  
Cellulose Fibers ◽  
Sodium Rhodizonate

scholarly journals Saraca indica bark extract mediated green synthesis of polyshaped gold nanoparticles and its application in catalytic reduction

2013 ◽  
Vol 4 (4) ◽  
pp. 485-490 ◽  
Author(s):  
Shib Shankar Dash ◽  
Rakhi Majumdar ◽  
Arun Kanti Sikder ◽  
Braja Gopal Bag ◽  
Biplab Kumar Patra
Keyword(s):  
Gold Nanoparticles ◽  
Green Synthesis ◽  
Catalytic Reduction ◽  
Bark Extract
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