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Novel triazine-based colorimetric and fluorescent sensor for highly selective detection of Al3+
The complexation activity of NADO with various metal ions in an ethanolic solution is specifically studied by means of fluorescent spectra. The NADO exhibits a significant fluorescence enhancement at 469 nm in presence of Al3 þ due to the formation of a complex.
9/24/2020 6:11:03 PM +00:00
Excitonic states and structural stability in two-dimensional hybrid organic-inorganic perovskites
Two-dimensional (2D) perovskites are a new class of functional materials that may find applications in various technologically important areas. Due to the better moisture and illumination stability, layered perovskites can be the next generation of materials for solar light-harvesting applications, as well as for light emitting diodes (LEDs).
9/24/2020 6:10:57 PM +00:00
The TiO2-graphene oxide-Hemin ternary hybrid composite material as an efficient heterogeneous catalyst for the degradation of organic contaminants
TiO2-Graphene Oxide-Hemin (TiO2/GO/Hemin) ternary composite hybrid material was prepared by the sol-gel method and used as a heterogeneous catalyst for the photocatalytic degradation of organic contaminants. The catalytic activity of GO-TiO2-Hemin was evaluated by the degradation of Rhodamine B (RhB) under the UV-visible light irradiation and in the presence of hydrogen peroxide.
9/24/2020 6:10:51 PM +00:00
Porous scaffolds for bone regeneration
The osteogenic capability of the scaffold is influenced by the interconnections between the scaffold pores which facilitate cell distribution, integration with the host tissue and capillary ingrowth. Hence, the preparation of bone scaffolds with applicable pore size and interconnectivity is a significant issue in bone tissue engineering
9/24/2020 6:10:45 PM +00:00
The electrochemical behavior, antifungal and cytotoxic activities of phytofabricated MgO nanoparticles using Withania somnifera leaf extract
In the present paper, we report the phytofabrication of MgO NPs using W. somnifera leaf extract for electrochemical sensing and their antifungal as well as cytotoxic activity. We have chosen the W. somnifera, known commonly as ashwagandha, which is a plant belonging to Solanaceae family as reducing agent (fuel) in the preparation of MgO NPs.
9/24/2020 6:10:38 PM +00:00
Characterization of biopolymer electrolytes based on cellulose acetate with magnesium perchlorate (Mg(ClO4)2) for energy storage devices
Magnesium ion conducting biopolymer electrolytes have been prepared using cellulose acetate and different wt of magnesium perchlorate with DMF as a solvent by the solution casting technique. Asprepared membranes were subjected to different characterization techniques such as XRD, FTIR, DSC, ac impedance analysis and transference number measurement.
9/24/2020 6:10:20 PM +00:00
Effect of the ceria dopant on the structural and dielectric properties of ZnO semico nductors
All the samples exhibit a normal dielectric dispersion behavior, i.e. it decreases with increasing frequency due to the MaxwelleWagner type of interfacial polarization. The ac conductivity data was used to evaluate the maximum barrier height, the minimum hoping distance, and the density of localized states at Fermi level.
9/24/2020 6:10:13 PM +00:00
Hydrogen sulfide sensors based on PANI/f-SWCNT polymer nanocomposite thin films prepared by electrochemical polymerization
Hydrogen sulfide (H2S) gas sensors in the form of thin films based on polyaniline (PAN) incorporated with various concentrations of functionalized single wall carbon nanotubes (f-SWCNT) were prepared by electrochemical polymerization of Aniline monomer with sulfuric acid in an aqueous solution.
9/24/2020 6:10:07 PM +00:00
Microstructure tailoring for enhancing the energy storage performance of 0.98[0.6Ba(Zr0.2Ti0.8)O3-0.4(Ba0.7Ca0.3)TiO3]- 0.02BiZn1/2Ti1/2O3 ceramic capacitors
It is observed that the rhombohedral and tetragonal phases co-exist in BCZT-BZ samples sintered at different time periods, except the one sintered for 11 h, where the rhombohedral and pseudocubic phases co-exist. The energy dispersive x-ray spectroscopy (EDS) revealed the presence of the elements constituting the BCZT-BZ samples.
9/24/2020 6:09:47 PM +00:00
Heteroatom doped high porosity carbo N nanom aterials as electrodes for energy storage in electroche mical capacitors: A review
This review article thus aims to provide important insights and an up-to-date analysis of the most recent developments, the directions of future research, and the techniques used for the synthesis of these functional materials.
9/24/2020 6:09:40 PM +00:00
Nanostructured zinc aluminates: A promising material for cool roof coating
In the present study, we report on the synthesis of nanocrystalline phase pure ZnAl2O4 by a simple citrate solegel method. The materials annealed at different temperatures have been characterized for their structural and optical properties. The near infrared reflective properties of the samples are emphasized for use as solar reflective materials.
9/24/2020 6:09:34 PM +00:00
Green synthesis of AgeZnO nanoparticles: Structural analysis, hydrogen generation, formylation and biodiesel applications
The present work reveals the green combustion preparation of the Ag-doped ZnO nanoparticles (NPs) using turmeric root extract as a fuel. The structure and morphology of Ag-doped ZnO NPs were investigated by several analytical techniques such as XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy), TEM (Transmission Electron Microscopy), FTIR (Fourier Transform Infrared), Raman, XPS (XRay Photoelectron Spectroscopy), and UV-Visible Spectroscopy (UVeVis).
9/24/2020 6:09:22 PM +00:00
Electrophoretic deposition of reduced graphene oxide thin films for reduction of cross-sectional heat diffusion in glass windows
Effective management of heat transfer, such as conduction and radiation, through glass windows is one of the most challenging issues in smart window technology. In this work, reduced Graphene Oxide (rGO) thin films of varying thicknesses are fabricated onto Fluorine-doped Tin Oxide (FTO) glass via electrophoretic deposition technique.
9/24/2020 6:09:15 PM +00:00
Characterization and magnetic properties of hollow a-Fe2O3 microspheres obtained by sol gel and spray roasting methods
In this work, we characterize the hollow hematite (a-Fe2O3) micro spheres obtained by two non-template techniques: Sol gel and, spray roasting process. Both techniques allow the production of high yield hollow hematite spheres up to 100 g for the case of sol gel and up to 500 kg for the case of spray roaster process.
9/24/2020 6:09:03 PM +00:00
Spectroscopic, thermal, structural and electrical studies on VO2 ions doped PVA/MAA:EA polymer blend films
It has been reported in literature that studies have been conducted on electrical conductivity and dielectric properties of polymer blends with regard to storage and dissipation of electric and magnetic energies. These materials reveal numerous phenomena in optics, electronics and solid state physics.
9/24/2020 6:08:56 PM +00:00
Effect of pH values on structural, optical, electrical and electrochemical properties of spinel LiMn2O4 cathode materials
In the present work, by keeping in view of the above, we present a systematic investigation on the structural, optical, electrical and electrochemical properties of spinel LiMn2O4 cathode materials synthesized via the sol-gel technique under optimal conditions at different pH values (3, 6 and 9) without any surfactant for the application of rechargeable lithium-ion batteries.
9/24/2020 6:08:50 PM +00:00
Novel gomutra (cow urine) mediated synthesis of silver oxide nanoparticles and their enhanced photocatalytic, photoluminescence and antibacterial studies
This work successfully synthesizes silver oxide (Ag2O) nanoparticles (Nps) using cow urine. The presence of different biological components in cow's urine may act as fuel for the synthesis of Ag2O Nps by a combustion method at 500 0C. This is a rapid and environmentally benign procedure, which has the added advantage of shorter response times and better control over size and shape.
9/24/2020 6:08:44 PM +00:00
A facile synthesis of graphene/ Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors
The electrochemical capability for the charge and energy storage of supercapacitors can be augmented by fabricating the hybrid and binder-free electrodes. In this work, the novel graphene/Co3V2O8 micropencils nanohybrids were successfully developed via the one-pot solvothermal method.
9/24/2020 6:08:38 PM +00:00
Studies of proton conducting polymer electrolyte based on PVA, amino acid proline and NH4SCN
Proton conducting polymer electrolytes based on PVA, amino acid proline and NH4SCN were prepared by the solution casting technique. An increase in the amorphous nature of the polymer electrolytes was confirmed by X-ray diffraction analysis. DSC measurements showed a decrease in Tg with increasing salt concentration
9/24/2020 6:08:31 PM +00:00
Evaluation of catalytic activity of MeOx/sepiolite in benzyl alcohol oxidation
The structural characterization showed a fine distribution of MeOx metal oxides on magnesium silicate nanobars. The sepiolite-loaded-metal oxide catalysts have been screened for the partial oxidation of benzyl alcohol and shown a good conversion and a very high selectivity to benzaldehyde at mild conditions.
9/24/2020 6:08:25 PM +00:00
The effects of shape-setting on transformation temperatures of pseudoelastic shape memory alloy springs
Since shape memory alloy (SMA) wires can hardly ever be reliably employed under compressive loadings, SMA springs are developed as axial actuators with the ability of withstanding both tension and compression. In this paper, shape memory alloy helical springs are produced by shape-setting two types of wires: One with shape memory effect (SME) and the other with pseudoelasticity (PE) at the ambient temperature.
9/24/2020 6:08:19 PM +00:00
Magnetocaloric effect and critical behavior in Fe-La-Zr rapidly quenched ribbons
A thorough analysis on critical exponents around the ferromagnetic-paramagnetic phase transition, using the ArrotteNoakes plots and KouveleFisher method, sheds light on the critical magnetic behavior and its association with the magnetocaloric effect in the Fe-La based alloys.
9/24/2020 6:08:06 PM +00:00
Combustio n synthesis of Ni doped SnO2 nanoparticles for applications in Zn-composite coating on mild steel
Zinc (Zn)-composite coatings are still in demand as good corrosion barrier coatings to protect steel substrates from corrosion environment. In this article, the Ni doped SnO2 nanoparticles were synthesized and used as a composite additive for Zn-coating.
9/24/2020 6:07:54 PM +00:00
Glycine-assisted hydrothermal synthesis of NiCo2S4 as an active electrode material for supercapacitors
Nickel cobalt sulfide (NCS) was synthesized from nickel and cobalt nitrate (NCS-1) by a hydrothermal method. In another method, nickel cobalt sulfide (NCS-2) was also synthesized from hydrothermally synthesized nickel cobalt oxide (NCO). The syntheses of NCS-1 and NCO were conducted in the presence of glycine as a templating agent.
9/24/2020 6:07:48 PM +00:00
Eco-friendly synthesis of aloe vera plant extract decorated iron tungstate nanorods immobilized Nafion for selective and sensitive determination of theophylline in blood serum, black tea and urine samples
This paper describes a selective and sensitive detection of bronchodilators (theophylline) using an aloe vera plant extract decorated iron tungstate nanorods (AFW) immobilized Nafion (Nf) modified glassy carbon electrode (GCE) (AFW/Nf/GCE).
9/24/2020 6:07:41 PM +00:00
Photocatalytic, nitrite sensing and antibacterial studies of facile bio-synthesized nickel oxide nanoparticles
In the present work, Nickel oxide nanoparticles (NiO NPs) were synthesized using leaves extract of C. gigantea through a solution combustion method. The NiO NPs were characterized through analytical techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR).
9/24/2020 6:07:28 PM +00:00
Epitaxial growth of Ce-doped (Pb,Gd)3(Al,Ga)5O12 films and their optical and scintillation properties
Се-doped (Pb,Gd)3(Al,Ga)5O12 single crystalline garnet films were grown using liquid-phase epitaxy from four series of supercooled PbOeB2O3-based melt solutions on Gd3Ga5O12 and Gd3Al2.26Ga2.74O12 single crystal substrates. This study reports the optical and scintillation properties of (Pb,Gd)3(Al,Ga)5O12:Се films grown via LPE from supercooled PbOeB2O3-based melt solutions.
9/24/2020 6:07:22 PM +00:00
Synthesis of organo tin halide perovskites via simple aqueous acidic solution-based method
Organometal halide perovskites have been studied extensively during the last ten years for their interesting applications in solar cells and optoelectronics. One drawback of these materials is the presence of lead inside the compound, thus limiting their practical applications.
9/24/2020 6:07:15 PM +00:00
Different types of smart nanogel for targeted delivery
The reviewed nanogels in this article are purely based on pH, temperature, magnetic field, light and on combination of them. The discussed information will be very helpful to design a targeted delivery vehicle by specifically using photo-sensitive core-shell multisensitive nanogels.
9/24/2020 6:07:08 PM +00:00
A surfactant enhanced novel pencil graphite and carbon nanotube composite paste material as an effective electrochemical sensor for determination of riboflavin
A novel sensor fabrication using anionic surfactant sodium lauryl sulphate modified carbonnanotube and pencil graphite composite paste electrode (SLSMCNTPGCPE) is prepared and characterized using Field Emission Scanning Electron Microscope (FE-SEM) and Cyclic Voltammetry (CV).
9/24/2020 6:06:55 PM +00:00