The effects of physicochemical parameters on the synthesis of silver nanowires via polyol method

Amirjani, Amirmostafa; Marashi, Pirooz; Haghshenas, Davoud Fatmehsari

doi:10.1007/s40089-014-0108-5

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…Several authors have reported peaks of absorption spectra of AgNPs in the range 391-440 nm [10,11,[34][35][36][37], while the peak at 292 nm could be attributed to the presence of proteins [38]. However, plasmon resonances for the transverse and longitudinal plasmon bands at 350 and 390 nm, respectively, typified of anisotropic metallic onedimensional nanostructures have been reported [39].…”

Section: Biosynthesis and Characterisation Of Silver Nanoparticlesmentioning

confidence: 99%

Green synthesis of silver nanoparticles using keratinase obtained from a strain of Bacillus safensis LAU 13

et al. 2014

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In this study, crude extracellular keratinase obtained from a novel keratin-degrading bacterial strain, Bacillus safensis LAU 13 (GenBank accession No. KJ461434) was used for the synthesis of silver nanoparticles (AgNPs). The particles were characterised by UVVisible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, and transmission electron microscopy. The biosynthesised AgNPs exhibited maximum absorbance at 409 nm. They are spherical in shape with the size ranging 5-30 nm. The FTIR spectrum showed peaks at 3410, 2930, 1664, 1618, 1389 and 600 cm -1 , indicating that proteins were the capping and stabilisation molecules in the synthesis of AgNPs. Data obtained from XRD showed that the particles have face-centred cubic phase and are crystalline in nature with average size of *8.3 nm. The particles showed effective inhibitory activity against five clinical isolates of Escherichia coli. Therefore, the keratinase of this strain could be used to develop an environmental friendly method for the rapid synthesis of AgNPs. To the best of our knowledge, this is the first report of green synthesis of AgNPs using the metabolite of B. safensis, and the report adds to the growing relevance of B. safensis as a potential industrially viable organism.

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Section: Biosynthesis and Characterisation Of Silver Nanoparticlesmentioning

confidence: 99%

Green synthesis of silver nanoparticles using keratinase obtained from a strain of Bacillus safensis LAU 13

et al. 2014

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“…The optical absorption as a function of wavelength is the simplest way to study the size dependent optical properties of the material [13,14]. Figure 5 shows the absorption spectrum of Mn-doped ZnS nanoparticles.…”

Section: Optical Propertiesmentioning

confidence: 99%

Preparation and characterization of Mn-doped ZnS nanoparticles

et al. 2015

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Mn-doped ZnS nanoparticles are synthesized by simple and cost effective chemical precipitation method. This diluted magnetic semiconductor is characterized by various techniques such as energy dispersive X-ray analysis, scanning electron microscopy, X-ray diffraction, photoluminescence and UV-Vis spectroscopy. High purity of the sample is confirmed by energy dispersive X-ray analysis. Sub-micrometer nanocrystals are observed using scanning electron microscope. Hexagonal phase of the material is confirmed by X-ray diffraction studies, and the micro-structural properties such as grain size, strain, dislocation density and texture coefficient are examined. High value of texture coefficient indicates the well-crystalline nature of the material. The band gap, Urbach energy and steepness parameter are calculated from the absorption spectrum. The band gap is also calculated from photoluminescence. The Stokes's shift, Urbach energy and steepness parameter are reported in the case of Mn-doped ZnS for the first time.

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“…Typically, this method is performed by reducing silver salts or silver oxides with polyols, crystal seeds (e.g., platinum), and reducing agents (primarily ethylene glycol (EG)). [64][65][66][67][68][69] This method facilitates spontaneous separation between the crystal seed and AgNWs after nucleation. The factors affecting the quality of AgNWs synthesized via the polyol method include the molecular weight and concentration of capping agents (e.g., polyvinyl pyrrolidone (PVP) and hexadecyl trimethyl ammonium bromide (CTAB)), the type and concentration of the controlling agents (e.g., FeCl 3 , CuCl 2 , NaCl, or NaBr), stirring speed, reaction temperature, and time.…”

Section: Preparation Of Agnwsmentioning

confidence: 99%

Silver Nanowire Synthesis and Applications in Composites: Progress and Prospects

Yang

Wang

et al. 2022

Adv Materials Technologies

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Silver nanowires (AgNWs) have gained increased interest as highly conductive and transparent nanomaterials with numerous applications across various fields. Owing to their unique properties (e.g., optical transparency, electrical conductivity, mechanical characteristics, and ease of processing), AgNWs have been extensively investigated for application in light‐emitting diodes, solar cells, electrocatalysis, liquid crystal displays, wearable electronic devices, flexible nanosensors, and supercapacitors. In this review, recent advances in the synthesis of AgNWs (including the polyol, template, wet chemical, and photoreduction methods) are discussed, with a focus on their advantages and disadvantages in terms of AgNW structural regulation. Furthermore, the advantages and applications of AgNW composites, are comprehensively reviewed and analyzed, with a focus on energy storage and optoelectronics, sensors, electromagnetic interference shielding and absorbing materials, nanogenerators, and other applications. The prospects and challenges of AgNW composites in emerging applications are also proposed.

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The effects of physicochemical parameters on the synthesis of silver nanowires via polyol method

Cited by 11 publications

References 18 publications

Green synthesis of silver nanoparticles using keratinase obtained from a strain of Bacillus safensis LAU 13

Green synthesis of silver nanoparticles using keratinase obtained from a strain of Bacillus safensis LAU 13

Preparation and characterization of Mn-doped ZnS nanoparticles

Silver Nanowire Synthesis and Applications in Composites: Progress and Prospects

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