One-step synthesis of silver nanoplates with high aspect ratios: using coordination of silver ions to enhance lateral growth

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95768-95773 ◽  
Author(s):  
Young Min Park ◽  
Byung Gon Lee ◽  
Jong-Il Weon ◽  
Mun Ho Kim
Keyword(s):  
Silver Ions ◽  
Lateral Growth ◽  
Silver Nanoplates ◽  
Aspect Ratios ◽  
One Step

A coordination-based strategy was employed to produce Ag nanoplates with high aspect ratios. Ag nanoplates were synthesized in the presence of acetonitrile, which served both as the co-solvent and as the ligand to form complexes with the Ag+ ions.

scholarly journals One-Step Synthesis of Quadrilateral-Shaped Silver Nanoplates with Lamellar Structures Tuned by Amylopectin Derivatives

ACS Omega ◽  
2018 ◽  
Vol 3 (6) ◽  
pp. 6841-6848
Author(s):  
Bo Pang ◽  
Robert Köhler ◽  
Vladimir Roddatis ◽  
Huan Liu ◽  
Xiaohui Wang ◽  
...  
Keyword(s):  
Silver Nanoplates ◽  
Lamellar Structures ◽  
One Step

A Facile, “Green” One – Step, Room Temperature Synthesis of a Series of monodispersed MSe(M = Cd or Zn) Water Dispersible Nanoparticles

2008 ◽  
Vol 1138 ◽  
Author(s):  
Oluwatobi S. Oluwafemi ◽  
Neerish Revaprasadu
Keyword(s):  
Room Temperature ◽  
Metal Salt ◽  
Water Soluble ◽  
Synthetic Approach ◽  
Temperature Synthesis ◽  
Water Dispersible ◽  
Aspect Ratios ◽  
Transmission Electron ◽  
One Step ◽  
Capping Ligands

AbstractWe herein report a facile, ‘green’ one- step synthesis of a series of monodispersed water-soluble selenide nanoparticles at room temperature. The capping ligands used include, cysteine, methionine, ascorbic acid and starch which function as agents of solubilisation, stabilization and conjugation sites for biomolecules. The synthetic approach involves the addition of an appropriate volume of selenide ion produced via the reduction of selenium powder in water to an aqueous solution containing the ligand- metal salt (MCl2 M = Zn or Cd). Optical spectroscopy shows that the particles are of high quality while the transmission electron microscopy (TEM) of the samples shows variation in shapes ranging from dots to rods of high and low aspect ratios.

A Facile Approach to α-FeOOH Nanorods with High Aspect Ratios

2011 ◽  
Vol 239-242 ◽  
pp. 2327-2330
Author(s):  
Hui Zhang
Keyword(s):  
Heat Treatment ◽  
Acetic Acid ◽  
Cetyltrimethylammonium Bromide ◽  
Iron Nitrate ◽  
Nitrate Hydrate ◽  
Aspect Ratios ◽  
One Step ◽  
Hydrothermal Approach ◽  
Crystal Phase Transformation ◽  
Xrd And Tem

α-FeOOH nanorods were fabricated via a one-step hydrothermal approach using iron nitrate hydrate (Fe(NO3)3·9H2O) as iron source, cetyltrimethylammonium bromide (CTAB) as a template and acetic acid (CH3COOH) solution as solvent. XRD, SEM, TEM, and TGA were applied to characterize the samples. The as-prepared α-FeOOH nanorods are around 50 nm in diameters and 1 µm in length. The aspect ratio is 20. The XRD and TEM results indicated that both CTAB and CH3COOH were crucial for the formation of α-FeOOH nanorods. The heat treatment at the temperature of 250°C led to the transformation of α-FeOOH to α-Fe2O3, and the crystal phase transformation was completed at 340°C. The lower transformation temperature compared to bulk α-FeOOH could be attributed to the decreased size of the as-prepared sample.

One step synthesis of silver nanorods by autoreduction of aqueous silver ions with hydroxyapatite: An inorganic–inorganic hybrid nanocomposite

2006 ◽  
Vol 80A (2) ◽  
pp. 391-398 ◽  
Author(s):  
Sujatha K. Arumugam ◽  
Thotapalli Parvathaleswara Sastry ◽  
B. Sreedhar ◽  
Asit Baran Mandal
Keyword(s):  
Silver Ions ◽  
Hybrid Nanocomposite ◽  
Inorganic Hybrid ◽  
Silver Nanorods ◽  
One Step

Buried Concentration Profiles for Optical Waveguides by One-Step Electro-Diffusion Process: Theoretical Analysis

1991 ◽  
Vol 228 ◽  
Author(s):  
Xiaoming Li ◽  
Paul F. Johnson
Keyword(s):  
Theoretical Analysis ◽  
Electric Field ◽  
Optical Waveguides ◽  
Diffusion Processes ◽  
Silver Ions ◽  
Point Of View ◽  
Concentration Profiles ◽  
Step Process ◽  
Practical Operation ◽  
One Step

IntroductionIn recent years, a two-step electric field assisted diffusion or ion-exchange technique has been extensively studied for producing buried concentration profiles in glass [1,2,3], polymer [4,5], electrooptic and semiconducting [6,7] substrate materials to fabricate buried optical waveguide devices. The technique contains two separate diffusion processes and is quite complicated, cost and time consuming. In addition, theoretical analysis of the technique is too complicated to be used for calculating and tailoring concentration profiles. Many efforts have been made to pursue a one-step process for producing buried profiles. Very recently, a novel one-step technique [8] involving electric field assisted diffusion of silver ions into glass from molten AgNO3 bath with decaying silver concentration has been developed to produce buried Ag+ concentration profiles in glass substrate. The new technique is, from the practical operation point of view, relatively simple and is a significant improvement over the conventional two-step process.

Antibacterial and Hemolytic Activity of Green Silver Nanoparticles from Catharanthus roseus

1970 ◽  
Vol 9 (1) ◽  
pp. 3112-3117 ◽  
Author(s):  
A. Raja ◽  
S. Mohamed Salique ◽  
P. Gajalakshmi ◽  
Arthur James
Keyword(s):  
Silver Nanoparticles ◽  
Cardiac Glycosides ◽  
Room Temperature ◽  
Silver Ions ◽  
Major Constituent ◽  
Colloidal Silver ◽  
Capping Agent ◽  
Phytochemical Study ◽  
One Step

The objective of this research was to standardize the Green synthesis of silver nanoparticles by C.roseus and to evaluate them for their potential against Mycobacteral tuberculosis. Phytochemical study realized the presence flavonoids, saponins, alkaloids, cardiac glycosides, steroids and tannins. Colloidal silver nanoparicle was synthesized by one step green reduction at room temperature and characterized by UV and TEM. An effort made to find out the capping agent revealed that the TLC fraction with 0.7 Rf value showed the reduction of silver ions. GCMS analysis of TLC fraction showed the presence of nine different phytochemical which includes pentadecane and piperdine carboxylic acid as major constituent. The nanoparticle diameter is in the range of 38- 52 nm and stable for 30 days under room temperature. The bactericidal activity of synthesized nanoparticle was  24 ± 0.04 and 22 ± 0.62 mm respectively against M.smegmatis and M.tuberculosis. The in vitro hemolytic assessment of silver nanoparticles was found to be safe at maximum of 1-5 µg/mL and toxic between 15- 50 µg/ml. Further this data encourages that theses biologically synthesized nanoparticles were found to be less toxic and more effective against mycobacterial strains.

Preparation and characterization of silver nanoparticle-porphyrazine composites

2013 ◽  
Vol 17 (10) ◽  
pp. 928-933
Author(s):  
Altuğ Mert Sevim ◽  
Ayşe Selda Keskin ◽  
Ahmet Gül
Keyword(s):  
Silver Nanoparticles ◽  
Chemical Reduction ◽  
Reduction Process ◽  
Silver Ions ◽  
Organic Medium ◽  
Nano Particles ◽  
Effective Manner ◽  
Vis Spectroscopy ◽  
One Step

A one step chemical reduction process was used for the preparation of hydrophilic silver nanoparticles ( AgNP ) using silver nitrate, sodiumborohydride and polyvinylpyrolidone as stabilizer. In the case of hydrophobic silver nanoparticles reduced silver ions were stabilized with cetyl trimethylammonium bromide (CTAB). The resultant nano particles were characterized by absoption spectra and their interactions with cationic cobalt (QCoPz) and neutral magnesium (MgPz) porphyrazines in water and in organic medium were investigated by using UV-vis spectroscopy and zeta potential techniques. It is confirmed that both metalloporphyrazine molecules interact with silver nanoparticles in an effective manner. The possible arrangement of the porphyrazines on the surfaces of the hydrophilic and hydrophobic AgNPs has been also discussed according to obtained spectroscopic results. These well-characterized novel AgNP -metalloporphyrazine composites are expected to be useful in optical and catalytic applications.

Adsorption Properties of Silver Ions on Thiourea-Formaldehyde Resin

2013 ◽  
Vol 868 ◽  
pp. 459-462 ◽  
Author(s):  
Zhi Xian Hao ◽  
Yu Qing Guo ◽  
Peng Fei Wu ◽  
Mulati Mansur ◽  
Jun Fu Zhu
Keyword(s):  
Theoretical Calculations ◽  
Synthesis Method ◽  
Silver Ions ◽  
Molar Ratio ◽  
Formaldehyde Resin ◽  
Maximum Adsorption Capacity ◽  
Adsorption Performance ◽  
Monolayer Adsorption ◽  
One Step ◽  
Resin Adsorption

Adsorption of silver ions by Thiourea (T) and Formaldehyde (F) resins in aqueous solution was investigated, where the TF resins were prepared by a one-step reaction catalyzed with acid or by a two-step one with base and acid, respectively. Effects of the reaction factors, such as the synthesis method, the monomer molar ratio and the amount of acid, on the TF resin adsorption performance were examined. According to Langmuir monolayer adsorption theory, experiments and theoretical calculations were designed to acquire the maximum adsorption capacity of silver ions.

One-step growth of triangular silver nanoplates with predictable sizes on a large scale

Nanoscale ◽  
2014 ◽  
Vol 6 (9) ◽  
pp. 4513 ◽  
Author(s):  
Xiaxia Liu ◽  
Linglong Li ◽  
Yaodong Yang ◽  
Yadong Yin ◽  
Chuanbo Gao
Keyword(s):  
Large Scale ◽  
Silver Nanoplates ◽  
Triangular Silver Nanoplates ◽  
One Step ◽  
Step Growth

ChemInform Abstract: VO2(A) Nanostructures with Controllable Feature Sizes and Giant Aspect Ratios: One-Step Hydrothermal Synthesis and Lithium-Ion Battery Performance.

ChemInform ◽  
2012 ◽  
Vol 43 (36) ◽  
pp. no-no
Author(s):  
Lei Dai ◽  
Yanfeng Gao ◽  
Chuanxiang Cao ◽  
Zhang Chen ◽  
Hongjie Luo ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Aspect Ratios ◽  
One Step
Sign in / Sign up

Export Citation Format

Share Document