SYNTHESIS AND CHARACTERIZATION OF SILVER NANOPARTICLES EMBEDDED IN EMULSIFIED ISOBUTYL ACRYLATE

2013 ◽  
Vol 12 (05) ◽  
pp. 1350041
Author(s):  
C. DENNIS ◽  
S. VIDHYA ◽  
K. SHADAK ALEE ◽  
D. NARAYANA RAO
Keyword(s):  
Silver Nanoparticles ◽  
Synthesis And Characterization ◽  
Spherical Nanoparticles ◽  
Colloidal Solutions ◽  
Sem Images ◽  
Atomic Force ◽  
Infrared Spectrophotometer ◽  
Laser Ablation Technique ◽  
Scanning Electron

Silver nanoparticles were generated using laser ablation technique in emulsified isobutyl acrylate solution in which the nanoparticles are stabilized and embedded over the acrylic polymerized solution. Further, the colloidal solutions were characterized with atomic force microscope (AFM), scanning electron microscope (SEM) and Fourier transform infrared spectrophotometer (FTIR). AFM image results of the nanoparticles displays the silver nanoparticles embedded over the emulsified acrylic layer and dispersion of spherical nanoparticles across the polymer were eruptions of silver nanoparticles can be seen clearly. In addition, FTIR spectrum and SEM images validate the nanoparticle reaction over the polymerized acrylate solution and size of the metal nanoparticles respectively.

scholarly journals Interaction Study, Synthesis and Characterization of Molecular Imprinted Polymer Using Functional Monomer Methacrylate Acid and Dimethylamylamine as Template Molecule

2018 ◽  
Vol 16 (1) ◽  
pp. 12 ◽  
Author(s):  
Saeful Amin ◽  
Sophi Damayanti ◽  
Slamet Ibrahim
Keyword(s):  
Synthesis And Characterization ◽  
Template Molecule ◽  
Functional Monomer ◽  
Molecular Imprinted Polymer ◽  
Glycol Dimethacrylate ◽  
Interaction Study ◽  
Imprinted Polymer ◽  
Infrared Spectrophotometer ◽  
Scanning Electron

The research related to the interaction study, synthesis and characterization of molecular imprinted polymer using dimethylamylamine (DMAA) as the template molecule and the functional monomer methacrylate acid has been conducted. Molecular Imprinted Polymer (MIP) is a separation method made by the molecule template in the polymer matrix followed by removing the template molecule by washing for giving the permanent framework groove. The MIP was made by mixing the DMAA as the template molecule, with the methacrylate acid as the functional monomer, and the ethylene glycol dimethacrylate (EGDMA) as the crosslinker with the ratio 1:6:20. Porogen solvents used were the chloroform and the initiator azobisisobutyronitrile (AIBN). The crystal MIP and the NIP without the DMAA were characterized using Infrared Spectrophotometer (FTIR), and the result showed that there have been differences among the MIP, the NIP and the MIP after being extracted. The characterization using Scanning Electron Microscope (SEM) showed that the NIP as the comparison having flat morphology, while the MIP having irregular morphology and less pores. Then the MIP after being extracted has irregular, rough morphology and a lot of pores. The result reveals the interaction between the DMAA and the methacrylate acid that is the hydrogen bonded with the Gibbs free energy obtained is -5.434 j/mol. The imprinting factor of 2,353 is obtained. The highest desorption descending capacity is chloroform with the MIP 738% better. For the MIP and NIP methanol, it is found that the MIP is 123% better. Then the MIP which is desorbed by the chloroform is better 602% than the MIP resorbed by the methanol, and the ethyl acetate cannot desorb the DMAA.

Synthesis and Characterization of Flower-Sphere MoS2

2011 ◽  
Vol 695 ◽  
pp. 429-432 ◽  
Author(s):  
Jun Zhou ◽  
Xin Zhe Lan ◽  
Ping Ren ◽  
Qiu Li Zhang ◽  
Yong Hui Song ◽  
...  
Keyword(s):  
Particle Size ◽  
Hydrothermal Systems ◽  
Molar Ratio ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Sem Images ◽  
X Ray ◽  
Xrd Patterns ◽  
Scanning Electron

The flower-sphere molybdenum disulfide has been synthesized by reaction of Na2MoO4 and CS(NH2)2 with NH2OH·HCl or H2C2O4 as reductant. The microstructure and chemical composition of the product were characterized by means of X-ray diffraction and scanning electron microscope. XRD patterns showed that the molar ratio of Mo to S had a great effect on the purity of the product. When the molar ratio of Mo to S was 1:5, the product was nearly pure MoS2. SEM images showed that the particle size increased as the molar ratio of Mo to S reduced. The MoS2 microspheres had rough surfaces and were constructed with sheet-like structures in the two systems. But the product from the system of NH2OH·HCl as reductant has the bigger particle size, clearer petal-sheets, coarser surface and weaker agglomeration than that from the system H2C2O4 as reductant. The possible chemical reactions in hydrothermal systems were preliminarily discussed.

Synthesis and Characterization of Hydrogels with Ag Nanoparticles

MRS Advances ◽  
2018 ◽  
Vol 3 (63) ◽  
pp. 3799-3804
Author(s):  
K. G. H Martínez-Reyna ◽  
M. G. García-Valdivieso ◽  
H. R. Navarro-Contreras
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Antibacterial Properties ◽  
Synthesis And Characterization ◽  
Polymerization Time ◽  
Volume Percentage ◽  
Scanning Electron

ABSTRACTHydrogels made of sodium 2-acrylamide-2-methypropanesulfonate were synthesized with the goal of creating a polymer for tissue engineering applications. The hydrogels were doped with silver nanoparticles to create hydrogel/Ag with possible antibacterial properties. We varied the weight/volume percentage of Laponite from 3 to 10 w/v% to alter the rheological properties of the hydrogels. Raman spectroscopy was used to study the progress of the chemical reaction at different polymerization times under ultraviolet radiation. By comparing the changes in the intensities of the Raman bands corresponding to C=C and C–C bonds with reaction time, we found that the optimal polymerization time to obtain chains of poly(2-acrylamide-2-methylpropanesulfonate) was 3 to 4 h. Characterization of the hydrogels with scanning electron microscopy indicated pore sizes of 1 to 6 µm.

Synthesis and Characterization of Silver Nanoplates by a Seed-mediated Method

2019 ◽  
Vol 29 (3) ◽  
Author(s):  
Mai Ngọc Tuan Anh
Keyword(s):  
Hydrogen Peroxide ◽  
Silver Nanoparticles ◽  
Ascorbic Acid ◽  
Silver Nitrate ◽  
Sodium Borohydride ◽  
Trisodium Citrate ◽  
Synthesis And Characterization ◽  
Silver Nanoplates ◽  
Seed Mediated

Silver nanoplates (SNPs) having different size were synthesized by a seed-mediated method. The seeds -silver nanoparticles with 4 – 6 nm diameters were synthesized first by reducing silver nitrate with sodium borohydride in the present of Trisodium Citrate and Hydrogen peroxide. Then these seeds were developed by continue reducing Ag\(^+\) ions with various amount of L-Ascorbic acid to form SNPs. Our analysis showed that the concentratrion of L-Ascorbic acid, a secondary reducing agent, played an important role to form SNPs. In addition, the size and in-plane dipole plasmon resonance wavelenght of silver nanoplates were increased when the concentration of added silver nitrate increased. The characterization of SNPs were studied by UV-Vis, FE-SEM, EDS and TEM methods.

Hydrothermal Synthesis and Characterization of BiFeO3 Polyhedral Crystallites

2012 ◽  
Vol 174-177 ◽  
pp. 508-511
Author(s):  
Lin Lin Yang ◽  
Yong Gang Wang ◽  
Yu Jiang Wang ◽  
Xiao Feng Wang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Xrd Pattern ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

BiFeO3 polyhedrons had been successfully synthesized via a hydrothermal method. The as-prepared products were characterized by power X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The possible mechanisms for the formation of BiFeO3 polyhedrons were discussed. Though comparison experiments, it was found that the kind of precursor played a key role on the morphology control of BiFeO3 crystals.

Plant-mediated green synthesis and characterization of silver nanoparticles using Phyllanthus emblica fruit extract

2021 ◽  
Author(s):  
Sajib Aninda Dhar ◽  
Rashedul Alam Chowdhury ◽  
Shaon Das ◽  
Md. Khalid Nahian ◽  
Dipa Islam ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Synthesis And Characterization ◽  
Phyllanthus Emblica ◽  
Fruit Extract

Synthesis and characterization of silver nanoparticles using Acremonium borodinense and their anti-bacterial and hemolytic activity

2021 ◽  
pp. 102222
Author(s):  
Nelsonjoseph Lawrance ◽  
Vishnupriya Benaltraja ◽  
Amsaveni Ramasamy ◽  
Bharathi Devaraj ◽  
Thangbalu Subramani ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Hemolytic Activity ◽  
Synthesis And Characterization
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