scholarly journals Green synthesis of cobalt nanoparticles by using methanol extract of plant leaf as reducing agent

2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Kashif Ahmed
Keyword(s):  
Green Synthesis ◽  
Methanol Extract ◽  
Cobalt Nanoparticles ◽  
Reducing Agent ◽  
Plant Leaf

scholarly journals Synthesis and Characterization of Nanoparticles of Iron(II) Gluconate Complex

2020 ◽  
Vol 32 (12) ◽  
pp. 3043-3046
Author(s):  
Runjhun Tandon ◽  
Khushboo Sharma ◽  
Nitin Tandon
Keyword(s):  
Green Synthesis ◽  
Aqueous Extract ◽  
Reducing Agent ◽  
Synthesis And Characterization ◽  
Sodium Gluconate ◽  
Ferrous Chloride ◽  
Plant Leaf ◽  
Uv Visible

This work describes the green synthesis and the characterization of nanoparticles of iron(II) gluconate complex, which is known to have antianemic properties. Iron(II) gluconate was synthesized by using ferrous chloride and sodium gluconate. The aqueous extract of leaves of Cataranthus roseus was used as a capping as well as reducing agent for the fabrication of nanoparticles of iron(II) gluconate complex. The synthesized Fe(II) complex and its nanoparticles were characterized by UV-visible, FTIR, SEM and FESEM techniques. Mechanism of plant leaf mediated synthesis has also been discussed.

Size-Controlled Green Synthesis of Silver Nanoparticles using Dual Functional Plant Leaf Extract at Room Temperature

2012 ◽  
Vol 4 (3) ◽  
pp. 310-325 ◽  
Author(s):  
Yekkuni L. Balachandran ◽  
Pazhanisami Peranantham ◽  
Rajendran Selvakumar ◽  
Arno C. Gutleb ◽  
Shanmugam Girija
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Leaf Extract ◽  
Room Temperature ◽  
Plant Leaf ◽  
Dual Functional ◽  
Plant Leaf Extract ◽  
Size Controlled

scholarly journals Artificial Sweeteners and Sugar Ingredients as Reducing Agent for Green Synthesis of Silver Nanoparticles

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Shohreh Hemmati ◽  
Erin Retzlaff-Roberts ◽  
Corren Scott ◽  
Michael T. Harris
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Green Synthesis ◽  
Reducing Agents ◽  
Reducing Agent ◽  
Artificial Sweeteners ◽  
Silver Nanostructures ◽  
Artificial Sweetener ◽  
Transmission Electron ◽  
Vis Spectroscopy

An environmentally friendly technique has been developed to produce metal nanoparticles using green synthesis methods. In this study, silver nanostructures were synthesized using different sugar substitutes and artificial sweeteners as green reducing agents in an aqueous solution at low temperature. The main ingredients (such as maltodextrin, sucrose, saccharin, and sucralose) of the artificial sweeteners acting as reducing agents were used to reduce Ag+ ions to Ag0. The pH of the solution was controlled during synthesis through the addition of sodium hydroxide (NaOH) to increase the strength of the reducing agents by converting nonreducing sugars to reducing ones and consequently increasing the rate of silver nanoparticle formation. The size and morphology of the synthesized nanostructures were characterized by transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). The formation of nanostructures during the course of the reactions was investigated by UV-visible (UV-vis) spectroscopy characterization of an aliquot of sample at specific intervals. The function of each artificial sweetener and corresponding ingredients as a reducing agent and capping agent was investigated by Fourier-transform infrared spectroscopy (FTIR) and mass spectrometry (MS).

Green synthesis of a silver nanoparticle–graphene oxide composite and its application for As(iii) detection

RSC Advances ◽  
2014 ◽  
Vol 4 (28) ◽  
pp. 14432-14440 ◽  
Author(s):  
Riyaz Ahmad Dar ◽  
Ninad G. Khare ◽  
Daniel P. Cole ◽  
Shashi P. Karna ◽  
Ashwini Kumar Srivastava
Keyword(s):  
Ascorbic Acid ◽  
Graphene Oxide ◽  
Green Synthesis ◽  
Silver Nanoparticle ◽  
Reducing Agent ◽  
Synthetic Approach ◽  
Stabilizing Agent ◽  
Oxide Composite ◽  
Beta Cyclodextrin

We report a facile and green synthetic approach to synthesize a silver nanoparticle (AgNPs)–graphene oxide (GO) composite using beta cyclodextrin as a stabilizing agent and ascorbic acid as a reducing agent.

scholarly journals GREEN SYNTHESIS OF SILVER NANOPARTICLES USING SAGO (METROXYLON SAGU) VIA AUTOCLAVING METHOD

2018 ◽  
Vol 19 (1) ◽  
pp. 178-184
Author(s):  
Aliyah Jamaludin ◽  
Che Ku Mohammad Faizal
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Silver Nitrate ◽  
Large Scale ◽  
Reducing Agent ◽  
Average Particle ◽  
Particle Sizes ◽  
Green Method ◽  
Metroxylon Sagu

Sago (metroxylon sagu) is a polysaccharide bio resource, which is biodegradable and low in toxicity that can be found in large scale in Mukah, Sarawak.  A simple green method of synthesizing silver nanoparticles (AgNPs) has been developed using sago dissolved in water as the reducing agent. The mixture of dissolved sago and silver nitrate (AgNO3) were autoclaved at 121 °C for 20 minutes. The size, morphology and structures of the AgNPs formed in the sago solution were investigated through UV-Vis spectrophotemeter, XRD and FESEM analysis. The synthesized AgNPs were spherical in shape and well distributed with average particle sizes of 19.3 ± 2.7 nm.ABSTRAK: Sago (Pokok Rumbia) adalah sumber bio polisakarida yang bioterurai dan rendah ketoksikan yang boleh didapati dalam skala yang besar di Mukah, Sarawak. Satu kaedah hijau yang mudah untuk mensintesis nanopartikel perak telah dihasilkan dengan menggunakan sagu yang larut dalam air sebagai ejen penurunan. Campuran sagu yang dilarutkan dan perak nitrat (AgNO3) telah autoklaf pada suhu 121°C selama 20 minit. Saiz, morfologi dan struktur nanopartikel perak yang terhasil di dalam larutan sago telah disiasat melalui analisis spektrofotometer UV-Vis, XRD dan FESEM. Nanopartikel perak yang dihasilkan adalah berbentuk bulat dengan purata saiz partikel 19.3 ± 2.7 nm.

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