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110 articles for “Microscopy”
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Effect of TiO2 on HER Activity of Electrodeposited Zn–Ni Coatings
Abstract: This paper demonstrates the improved electrocatalytic behavior of Zn–Ni alloy coatings for alkaline hydrogen evolution reaction (HER), due to addition of TiO2 nanoparticles into the bath. Zn–Ni alloy coatings have been electrodeposited galvanostatically on copper, with wide compositional range (2.31–7.91 wt. % of Zn) at different current densities (c.d.) between 2.0 and 5.0 A dm-2. The electrocatalytic behaviors of all coatings have been studied for alkaline HER in 1.0 M …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article
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Preparation and Evaluation of Nano pore Faujasite Membranes
Abstract: Nano pore Faujasite zeolite membranes were synthesized by in-situ hydrothermal method on porous ceramic tubes. Hydrothermal crystallization was carried out under an autogenously pressure and at a static condition of 100 oC. Molar composition of the starting gel of Faujasite zeolite membranes were NaX: SiO2/Al2O3=10-27, Na2O/Al2O3=4-9, H2O/Al2O3=250; NaY: SiO2/Al2O3=2.5-4, Na2O/SiO2=1.08-2, H2O/Na2O=30-200. X-ray diffraction (XRD) patterns of the membranes exhibited peaks corresponding to the support and the zeolite. The crystal species …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 2, 2017 · pp. 15–24 Read article
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Green Chemistry Approach for the Preparation of Silver Nanoparticles: A Review
Abstract: The word "nanoparticles" refers to particles within a size range of 10 and 100 nm. Nanotechnology is the topic that is growing the fastest because of its applications in science and technology to produce new at the nanoscale range. Silver is the metal of first preference among the various noble metals. The production of silver nanoparticles can be achieved by different methods such as: chemical method, biological method, green synthesis. …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 1, 2023 · pp. 30–39 Read article
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Synthesis, Crystal growth and Characterization of Lead acetate zinc (II)Sulphate Material
Abstract: Leadacetatezinc (II) Sulphate Crystal is synthesized by the addition of Leadacetate to Zinc sulphate in equimolar concentration (1:1ratio) to produce larger sized crystal but during the crystallization process a bulk of colourless precipitate was obtained and after filtration the crystals are formed in the filtrate after slow evaporation solution growth technique. Thus formed crystals from the filtrate is kept away and the precipitate formed during the crystallization process is characterized …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 1, 2023 · pp. 22–29 Read article
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A Study of Thermodynamics of Ligand - Receptor Interaction in Chemical Sciences
Abstract: The formation and separation of definite non-covalent interactions between varieties of macromolecules play a crucial role in the function of biological systems. During the last few years, three main lines of research led to a dramatic improvement of our understanding of these important phenomena. First, combination of genetic engineering and X ray crystallography made available a simultaneous knowledge of the precise structure and affinity of series or related ligand-receptor systems …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 2, 2017 · pp. 12–16 Read article
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Review of Silicon Reactivity of Self-assembled monolayer and its Properties
Abstract: In most cases, the assumption of perfect high viscosity between silicon and silver underlies the modelization of silicene on Ag(111). According to recent reports, growth does not take place on top of the Ag(111) terraces, but rather within the first layer of them. In this article, we present the results of a study that combines scanning tunnelling microscopy and density functional theory to simulate the nucleation process and reveal the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 29–33 Read article
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Image Processing and Restoration Through a Base Image – A Review
Abstract: ABSTRACTDigital imaging systems had been widely used for many applications including customer photography, microscopy, aerial images, astronomical imaging, and many others., their output photographs/movies frequently suffer from spatially various blur caused by lens, transmission medium, publish processing algorithms, and digicam/item motion. Measuring the amount of blur globally and regionally is a critical problem. it can assist us in getting rid of the spatially various blur and enhancing the visual of …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Image Processing and Restoration Through a Base Image Using Geometrical Transformation
Abstract: ABSTRACTThe imaging systems have wide use among number of applications, including commercial photography, microscopy, aerial photography, astronomical and space imaging, etc. Many a times the output images or a video suffers from blur due to lenses, transmission medium, algorithms or a camera/person motion. The amount of blur can be measured and it’s an important issue. Image processing and restoration is a technique to enhance the quality of an image or …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 5, Issue 2, 2019 · pp. 12–28 Read article
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Synthesis and Characterization of Magnetite-Pectin-Alginate Hybrid and Bionanocomposite
Abstract: It is a one pot synthesis of hybrid bionanocomposite comprising of inorganic magnetite with stabilizer biopolymer pectin and alginate in co-precipitation method using sodium hydroxide and ammonium hydroxide as precipitating agents. A lot of comparison and investigation has been done in particle size of nanocomposite by changing the stoichiometric ratio of both magnetite and biopolymer concentration and drying condition of composite. The nanocomposite has been characterized using infrared spectroscopy (FTIR), …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 1, 2017 · pp. 18–22 Read article
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Synthesis and characterization of bi metallic Nanoparticles by 2-thiotic acid for selective growth of SWCNT
Abstract: Nanoparticles (NPs) are tiny materials having size ranges from 1 to 100 nm. They can be classified into different classes based on their properties, shapes or sizes. There are different types of NPs like men made NPs and Natural NPs but we are discussing about monometallic NPs and Bimetallic NPs. We deal with bimetallic NPs. NPs possess unique physical and chemical properties due to their high surface area and nanoscale …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 2, 2018 · pp. 48–58 Read article
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Two-dimensional MoS2 Nanosheets: Preparation and Characterization
Abstract: The amazing properties and useful applications of graphene in the field of sensors, electronics and material science opens a new challenges to other two dimensional semiconductor materials. Specially due to extraordinary electronic, mechanical and optical properties, molybdenum disulfide (MoS2) is attracting huge interest in several applications. Single layer MoS2 with direct band gap shows better semiconductor behavior such as photoluminescence, makes them more acceptable in optoelectronic applications in comparison with …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 2, 2019 · pp. 17–25 Read article
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Effect of Polystyrene Nanoparticles from Recycled Waste Material on the Properties of Asphalt
Abstract: There is growing concern in many parts of the world over the increasing stress placed on the asphaltic material used to pave streets, highways, and runways due to higher traffic volumes and climatic and other environmental factors (e.g., heat, storms, ultraviolet radiation). Adding asphalt modifiers (e.g., polymers) on both the micro and macro scales has improved this material’s physical and rheological properties, but recent research, especially in the field of …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 2, 2022 · pp. 37–50 Read article
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Synthesis of White Light Emitting Water-soluble CdZnS Quantum Dots at Room Temperature
Abstract: Water-soluble alloyed CdZnS quantum dots (QDs) have been successfully prepared at room temperatures by reacting a mixture of Cd(CH3COO)2 and Zn(CH3COO)2 with Na2S using thiolactic acid (TLA) as a surface capping agent. The photoluminescence (PL) spectra of the alloyed QDs are determined on the basis of the Cd2+/Zn2+ molar ratio, reaction pH, intrinsic Cd2+and Zn2+reactivities toward Na2S and the concentration of capping agent. A systematic blue shift in emission wavelength …
Published in International Journal of Energetic Materials · Vol. 7, Issue 1, 2021 · pp. 32–39 Read article
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Investigation of the Optical-Electrical Properties of Simonkolleite and ZnO: Synergism and Nano/Microcrystals
Abstract: This study aimed to investigate the optical-electrical properties of simonkolleite (SM) and zinc oxide (ZnO), focusing on ZnO's nano/micro size and the synergistic effects between SM and ZnO. The synthesis of SM nanocrystals (NCs) was successfully achieved, and thermal annealing temperature was used to manipulate the formation of SM/ZnO nanocomposites ranging from NCs to microcrystals of ZnO. Structural and morphological properties were characterized using X-ray diffraction (XRD),Fourier transforms infrared (FT-IR), …
Published in International Journal of Energetic Materials · Vol. 8, Issue 2, 2022 · pp. 18–30 Read article
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Effect of Ge and Pb Impurities on the Optical Properties of Amorphous (Sb2Se3)90Sn10 Thin Films
Abstract: The as prepared samples of [(Sb2Se3)90Sn10]95 M5 [M = Ge, Pb] chalcogenide system were amorphous as evidenced by X-ray diffraction studies. The optical band gap has been estimated with the help of Taucs relation for the as-deposited [(Sb2Se3)90Sn10]95M5 thin films. It is observed that the optical band gap increase with increase in the Ge and Pb content, which may be due to decrease in the density of defect states. This …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 7–14 Read article
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Study of Microstructure and corrosion effects of precipitation hardened high strength AA-7xxx aluminium alloy subjected to cryo rolling
Abstract: The strength and life of an alloy is the primary parameter taken into consideration while building hulls and superstructures for marine applications. Usually AA-7xxx is widely used for these applications and hence is chosen for the present investigation. Cast AA-7xxx alloy reveals distribution of soluble intermetallic compounds in the α-aluminium matrix. In order to improve the mechanical properties and condition the microstructural features, precipitation hardening (solutionizing and ageing) treatment was …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 2, 2020 · pp. 18–23 Read article
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Modern Material Concept to Produce Low-Loss Non- Oriented Electric Alloys
Abstract: The production of energy-efficient materials is an essential aspect of modern society, with efforts focused on reducing energy loss and conserving resources. A key element in the creation of energy-efficient electrical equipment, such as transformers, generators, and motors, is low-loss non-oriented electrical steel. In this regard, material design is a promising approach to improve the properties of non-oriented electrical steel. This paper presents an overview of material design for low-loss …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 2, 2022 · pp. 37–42 Read article
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An Analytical Study of Structural Optical Properties of CaAl2O4 Phosphors by Sol–Gel Method
Abstract: A comparative study of structure, morphology and optical properties of CaAl2O4 Phosphors by In this paper, monoclinic CaAl2O4 phosphor with various weight rate of aluminum was blended by low temperature sol–gel technique. The readied tests were described by X-beam diffraction (XRD) examination, Fourier change infrared (FTIR), checking electron microscopy (SEM), vitality dispersive spectroscopy (EDS) and photoluminescence discharge spectra (PL). The XRD examination demonstrated that CaAl2O4 have monoclinic structure. The normal …
Published in International journal of Nanobiotechnology · Vol. 2, Issue 1, 2016 · pp. 1–4 Read article
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Biosynthesis of Silver Nanoparticles for Mosquito Control
Abstract: Biological synthesis of nanoparticles has received increased attention due to a growing need to develop environmentally benign technologies in material synthesis. In present work, silver nanoparticles (AgNps) were synthesized intracellular by using Pseudomonas aeruginosa sp. The silver nanoparticles were characterized by transmission electron microscopy (TEM), UV–Visible spectroscopy (UV). Larvicidal activities of silver nanoparticles were analyzed as per the standard procedures. The P. aeruginosa synthesized AgNPs were found effective against the …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 1, 2017 · pp. 6–11 Read article
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Biosynthesis of Chitosan mediated nanoparticles for Preservation of Food and Its Antimicrobial activity
Abstract: In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from Saccharomyces cerevisiae and then deacetylated to chitosan. The presence and characterization of chitosan nanoparticles was investigated by UV-Visible Spectroscopy (UV) and scanning electron microscopy (SEM). The antimicrobial property of these chitosan nanoparticles were studied against E.coli, S.aureus, S.typhi, P.aureginosa, C.albicans and A.niger and compare with chitosan polymer. CSNPs showed higher …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 1, 2017 · pp. 16–24 Read article