In this article, we investigated the heat transfer characteristic of magneto hydrodynamic (MHD) nanofluid towards a stretching surface under the influence of radiation and hybrid nanoparticles. Here, we consider the base fluid is water embedded with Cu-Al2O3 nanoparticles with mixture of SWCNT (Single Wall Carbon Nanotubes). To transform Partial Differential Equations (PDE's) into ordinary differential

This investigation elaborates simultaneous attributes of chemical reaction and dual stratification in magnetized Jeffrey liquid flow by the vertical cylinder movement. Consideration of mixed convection leads to coupled flow phenomena. Heat sink/source and thermal radiation effect are accounted to scrutinize the heat transport features. The mathematical system is simplified by implementing boundary-layer

The present study described a simple, facile and cost-effective method for the synthesis of silver nanoparticles using Scrophularia striata (S. striata) leaf extract (AgNPs@SSE). The influence of various reaction factors such as AgNO3 concentration, pH, contact time and temperature on size and morphology of products were studied. The synthesized AgNPs@SSE was characterized by FE-SEM, XRD, TEM, EDS

A new material, C60@AgCl-LDO, is created for photoelectrically degrading Bisphenol A (BPA). The core of this material is a C60@AgCl shell, which is supported by a ZnAlTi layer double oxide (LDO). The morphology, structure, composition and photoelectrocatalysis activities were extensively measured and analyzed. As a kind of Ag-based photocatalyst with heterostructure, C60@AgCl-LDO nanoparticles showed

In this study, superhydrophobic Co3O4 surfaces with micro/nano hierarchical structures were synthesized on the stainless steel mesh (type: 304, size: #50) by the chemical bath deposition (CBD) method. Taguchi L9 experimental design was applied to evaluate the influence of the type and concentration amounts of the additives, the zinc salt solution concentration as the seeding medium, and the reaction

In this study the biomedical and catalytic ability of green synthesized nickel Oxide nanoparticles (NiONPs) was investigated. The extract of medicinal plant Tribulus terrestris were used to synthesized NiONPs. The as-synthesized NiONPs were in nano scale and were characterized with X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), High-Resolution Transmission Electron Microscopy

Surface of (NH4)3H(SeO4)2 crystals and its evolution in the course of the transition from the ferroelastic to the superprotonic phase were studied by optical polarization microscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy-dispersive X-ray spectroscopy (EDXS). The morphology of fresh cleavage surfaces was examined. The composition and local electrical properties

In this study, 2.5D carbon fiber reinforced pyrocarbon matrix composites with a BN interphase (Cf/BN/PyC) were prepared by chemical vapor infiltration. Through comparing the distribution of thermal residual stress and the evolution of the interface microstructure of composite before and after heat treatment, the reason why the structure and orientation of the BN interphase in the Cf/BN/PyC composite

Un-doped, Sb doped (ATO) and Li-Sb co-doped SnO2 (LATO) transparent conducting thin film electrodes have been deposited using facile spray pyrolysis method. X-ray diffraction study is carried out to confirm the crystal structure, phase purity, and textured growth of the films. Surface morphological transition from dendritic to cuboid shape is observed upon Li-Sb co-doping into the SnO2 system from

Ta-doped SnO2 (TTO) films were deposited at 3 × 10−3 Torr pressure from the 6 wt. % Ta2O5-doped SnO2 target at temperatures of 30–500 °C in Ar sputtering gas. The Ta dopants in the SnO2 host lattice were detected via X-ray photoemission, EDX mapping, and photoluminescence spectra. The Ta5+–Sn4+ substitution formed the OOx at VOxsites in the host lattice and the substitution occurred at deposition temperatures

In the current study, Thunbergia grandiflora (Bengal clock vine) leaf extract has been used as green-resource to prepare Fe3O4 nanoparticles. SEM image showed agglomerated spherical (25 nm) particles, and EDS ascertained the existence of elemental iron (between 6 – 7 k eV) and oxygen (at 0.5 keV). XRD and XPS designated signature peaks for Fe3O4. BET studies revealed a high specific surface area of

A novel ionic liquid modified graphene oxide supported Mo-complex [GO@IL/MoO2(acac)2] was successfully prepared, characterized and its catalytic application was investigated. The GO@IL/MoO2(acac)2 catalyst was prepared through the surface modification of graphene oxide with alkyl imidazolium chloride followed by treatment with molybdenyl acetylacetonate. The GO@IL/MoO2(acac)2 catalyst was characterized

Sol–gel method was used to prepare a Si-Ti-epoxy organic–inorganic hybrid composite sol, which was cured on the carbon steel surface at room temperature to obtain a transparent film. Based on the scanning electron microscopic image, the microscopic morphology of the film is flat, smooth, and dense. The atomic force microscopic image shows a nanometer scale morphology, and the structure of the Si-Ti-epoxy

The optical properties of inorganic cesium lead bromide perovskite quantum dots (CsPbBr3-PQDs) make them particularly suitable for use as semiconductors. However, surface defects limit the performance of PQDs-based materials and devices. Consequently, this study investigated a surface passivation approach using a special polymer coating under standard conditions. In encapsulation materials, one of

Zinc oxide doped titanium dioxide/reduced graphene oxide (ZnO-TiO2/rGO) nanocomposite was fabricated by the two-step hydrothermal method and used for adsorption and photodegradation of methylene blue in aqueous solution under UV irradiation. The characteristics of the catalyst material were confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, scanning electron

Highly compact and transparent pristine ZnO and indium doped ZnO (IZO) thin films have been successfully deposited on ITO substrates and their performance as photoanode in DSSCs were investigated. The structural analysis confirmed the wurtzite structure of ZnO with preferential orientation (002). The FESEM images depicted the granular and porous structure for the pristine ZnO and the nanofiber network

In the current study, the inhibition properties of three cyclic amino acids, namely Histidine (His), Tyrosine (Tyr) and Phenylalanine (Phe), have been investigated using electrochemical techniques for tin corrosion in stagnant 2% NaCl solution at different pH values. To shed more light on the inhibition mechanism, DFT-based computations and Monte Carlo-SAA simulations have been employed. The obtained

Among thermosetting polymers, epoxy resins are major components of adhesives, sealants, paints and composites. Polymerization is often achieved by reaction of epoxy monomers like DGEBA with amine hardeners such as DETA. Previous works showed that polyamines interact with metal (hydr/oxide) substrates leading to the formation of an interphase involving the chelation of surface metal ions. In this work

Removal of new antiviral drug sofosbuvir from aqueous solution by non-modified expanded perlite (E-perlite) using adsorption process was investigated. Perlite is high-grade stone rich on silica utilized as inexpensive natural adsorbent. An experimental combination of Response Surface Methodology (RSM) with Central Composite Design (CCD) was applied to optimize the process parameters effecting the adsorption

Novel and efficient flexible carbon sieves for landfill gas and biogas upgrading are developed. Various carbon cloths and activated ones have been developed from different carbon precursors (cotton, viscose rayon and blend furniture textiles). In order to enhance the charring effect and nitrogen elements doping, the polypyrrole nanoparticles (PNP) were decorated on the textile fabrics before carbonization

Ammonium zinc phosphate hydrates (NH4ZnPO4: NZPO) precursor powder was synthesized by a facile hydrothermal method at 200°C for 8 h. Effect of calcination temperature on structure, morphology and electrochemical properties of zinc pyrophosphate nanostructure (Zn2P2O7: ZPO Nstr) was studied by calcination NZPO precursor powder at 500 (ZPO5), 600 (ZPO6), 700 (ZPO7) and 800 (ZPO8) °C under argon flow

An efficient and cost-effective nanocomposite, zinc oxide-polypyrrole (ZnO-PPy) was synthesized via a simple ultrasonic technique. The as-prepared ZnO-PPy nanocomposite was characterized and confirmed by various analytical techniques such as XRD, FT-IR, UV-DRS, SEM and elemental mapping analysis. The ZnO-PPy nanocomposite has been shown to be highly efficient reduction of toxic Cr6+ to Cr3+ under visible

Solid state reaction technique was employed to fabricate oxygen sensors based on Y, Cr co-doped CaZrO3. The X-ray diffraction, scanning electron microscopy, electrochemical impedance spectroscopy, electron-blocking method were employed to investigate the crystal structure, surface morphology, and electrical properties such as phase formation, microstructure, the oxygen vacancy concentration, ionic

Bidirectional flows of Williamson nanomaterial in porous space is discussed. Nonlinear model contains thermophoresis and Brownian motion. Bidirectional non-linear and time-dependent stretching sheet velocity is considered. Nanoparticles zero mass flux condition is accounted. Modified Darcy’s law is invoked. Resulting nonlinear systems are computed by optimal homotopy analysis method (OHAM). Numerical

The Aegle marmelos essential oils (AMEOs) were loaded on surface of the chitosan nanoparticles (CHs NPs), and it performed against carbapenemase producing K. pneumoniae. The physiochemical characterizations of CHs, CHs NPs and AMEOs-CHs NPs were confirmed by FTIR and powder XRD. The morphological observation, size, shape of the SEM and TEM results confirmed that the AMEOs was successfully coated onto

Silica nanoparticles are used as additives to organic coatings to modify their properties. The interface of inorganic nanoparticles with an organic matrix can be a preferred location for accumulation of water. Surface treatment of nanoparticles with 3-glycidoxypropyltrimethylsilane (silane) is one way to reduce the water accumulation. In this work, using atomistic simulations (MD), we studied the effects

In this work we investigate the strain state in Ni films belonging to [Ni(tNi)/Cu(tCu)] × N superlattices (with tNi = 2 nm, 3 nm, tCu from 0 to 3 nm and N between 1 and 6) by Extended X-ray Absorption Fine Structure at the Ni K-edge. The strain of these Ni blocks can be up to 80% larger than that obtained for single thin films with the same content of Ni. The dependence of the strain on N indicates

A simple phyto-assisted synthesis of zinc oxide nanowires (ZnO NWs) employing urinary tract infection (UTI) controlling traditional medicinal plant Pedalium murex L. mucilage, their silver (Ag) doping by co-precipitation method has been reported. The synthesized Ag-doped ZnO NWs photocatalytic action on the UTI antibiotic nitrofurantoin (NFT) and the dye methylene blue (MB) has been reported. The synthesized

The effects of W addition on the corrosion behaviors of FeCoNiCrMn high entropy alloy composites in 3.5 wt.% NaCl solution are investigated in this study. The X-ray diffraction and scanning electron microscopy suggest that the quantity of added W particles results in the increasing quantity of particles in the composites and large amount of cohesionless phases covering the matrix occur in the alloy

Broadband transparent photodetectors are achieved through the formation of a metal oxide heterojunction. A high transmittance of 66.63% for visible light (400–800 nm) results from the wide energy bandgaps of TiO2 (3 eV) and NiO (3.86 eV). The metal-oxide heterojunction generates a photovoltaic effect due to the high open-circuit voltage (0.4 V), which spontaneously drives the NiO/TiO2 photodetector

The success of photocatalysis in different applications majorly depends on the efficiency or activity of the catalysts used in the visible light region. Although, several photocatalysts have been reported to be efficient in various photocatalytic applications, bismuth-based chalcogenides are one of the compounds with unique performance. This is because they possess band gap energies that allow them

Emerging sensor technology has led to develop high-performance sensors that satisfy most of the sensing parameters. However, still further advances are needed for sensors to achieve low detection, which is crucial for the detection of low concentration analytes present in the solution. Herein, we designed a sensor electrode with gold nanoparticles (AuNPs) functionalized single polypyrrole nanowire

The adsorption of DNA on the surface is the basic task of mesoporous silica nanoparticles (MSN) because of its surface charge characteristics. Therefore, without covalent conjugation, the adsorbed DNA can be used directly as the ideal goalkeeper of MSN to encapsulate various cargoes in pores. However, some critical issues regarding the DNA encapsulated cargoes in MSN remain unknown and almost no systematic

To date, EPD obtained ZnO one-dimensional nanostructures have been achieved by depositing ZnO nanoparticles through a sacrificial anodic alumina membrane or promoted by the presence of pre-deposited Au nanoclusters on the substrate. In the present work, we explored using boron (p-type)-doped crystalline Si (100) substrates with different conductivities. We found the conditions for the direct self-assembly

Fused-ring non-fullerene electron-accepting materials have been well designed and synthesized to adopt into the high-efficiency organic solar cells (OSCs). Y6, as an epoch-making non-fullerene acceptor (NFA), remarkably promoted the power conversion efficiency (PCE) over 18% in 2020. After then, Y6-based OSCs enjoy a rapid growth in both the device performance and fundamental studies. In this review

This report describes a fabrication route for membrane electrode assembly (MEA) with low Pt loading based on Nafion/sulfonated graphene oxide (SGO) nanocomposite membrane. The Pt catalyst was directly electroless deposited on both sides of Nafion/SGO membranes and electrochemical performance of the fabricated MEAs toward hydrogen adsorption/desorption reactions were studied. The effects of Nafion SGO

Sodium ion batteries (NIBs) have gradually become an alternative to lithium ion batteries. Prussian blues (PBs) are regarded as a promising kind of cathode materials for NIBs, but their poor electrical conductivity has always been a considerable issue limiting its performance. In our work, we have optimized the PB cathode by utilizing reduced graphene oxide (RGO) as the conductive additive, whose performance

Chromium (VI) is recognized as a highly toxic contaminant metal ion, due to its potential toxic effect to human and animal health. From the most common processes applied for Cr (VI) ions removal is the sorption process hence it has been highly efficient and inexpensive technique. In the present work, a bio-synthesized Ag/ZnO nanocomposite loaded on activated carbon as a new eco-friendly and effective

Through an ecofriendly, economic and one pot method, the TiO2@Fe3O4@Quartz nanocomposite (NCs) was fabricated using the antioxidant potential of the Allium tricoccum extract and quartz as a natural geosubstrate (G.S). Also, high performance liquid chromatography (HPLC) analysis of the plant and evaluation of its total phenolic content (TPC) revealed its high potential to biosynthesis of the catalyst

Interface engineering of the device layers of halide perovskite solar cells has shown the potential to improve efficiency and stability. In this paper, the interface mechanism between the halide perovskite layer FAPbI3 and SnO2 was clarified by first-principles calculations. Results showed that the formation energies of the FAI interface and the PbI2 interface were -0.107eV and -0.087eV respectively

The present work examines undoped and vanadium (V) doped cerium dioxide (CeO2) thin films prepared by an automated spray pyrolysis technique. The doping concentrations are 2,4, 6, and 8 at.%. Various characterization techniques were carried out to investigate the vanadium effect on the structural as well as the optical properties of the CeO2 films. The study also focused on inspecting the electrochemical

In this paper, the stability of low-temperature-gaseous-carburization (LTGC) layer in AISI316L stainless steel was investigated by exposing at temperature between 100 ℃ to 400 ℃ from 150 h to 3000 h in air. Test results show that, after carburization, a carburized layer with high carbon content, hardness and huge compressive residual stress form on the surface of 316L. The carburized layer is phase

In this paper, employing a hydrothermal method, we synthesized Cu2O nanoparticles and Cu2O@C core–shell. The scanning electron microscope (SEM), X -Ray diffraction (XRD), dynamic light scattering (DLS) and zeta potential techniques were used for characterized of the Cu2O nanoparticles and Cu2O@C core–shell. The zeta potential values were obtained to be -11.16 mV and -0.88 mV for Cu2O and Cu2O@C, respectively

Manganese doped zinc oxide (MZ) nanocomposites was uniquely synthesized using co-precipitation method. The photocatalytic activity of the synthesized MZ nanocomposites was studied under ultraviolet light irradiation by the photodegradation of malachite green (MG), a toxic organic dye. MZ3 (1:25) nanocomposite This show the best photocatalytic activity among the different molar ratios of Mn/Zn by studying

Flexible antiadhesive polymer surfaces were fabricated using an array of microgrid patterns generated by three-dimensional (3D) printing. A disadvantage of the fused deposition modeling-type 3D printing (rough surface) was utilized to create casting molds with microgrid patterns. The shape of the microscale pattern was controlled by rotating the bottom epoxy mold where polylactic acid filaments were

Recently, nanofluids are working in diverse applications for instance, hybrid-mechanical mechanisms, malice usage, micro microelectronic, therapeutic diligences, aeronautics zones, thermonuclear depots and conserving of diverse machines etc. The deferments of nanofluids could be acknowledged and exploited as projecting forthcoming for the progression of viable energy strategies. This effort deals with

We have successfully synthesized and transferred graphene (Gr) monolayers on top of epitaxial mixed valence La0.7Sr0.3CoO3 (LSCO) thin films. Raman spectroscopy reveals that Jahn-Teller (JT) modes associated with the oxygen octahedral distortions usually unobserved for bare LSCO are activated by the deposited graphene. The appearance of these JT modes in the Gr/LSCO heterostructure is attributed to

Herein we report on the spin coated thin films of Zn-doped TiO2 on glass substrates with various Zn concentrations (2 ‒8 at %). The structural, chemical, optical and morphological properties were investigated using X-ray diffraction (XRD), Raman spectroscopy, photoluminescence (PL), UV-Visible spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FESEM)