Physical properties of a Eu-doped ZnSiO phosphor ceramic material with enhanced thermal sensitivity at low temperatures.

In the present study, a SiO/ZnSiO:Eu glass-ceramic composite was synthesized by a homemade modified sol-gel method. Structural, morphological, and optical properties were investigated. Structural and morphological analysis proves the existence of silica and zinc silicate phases with the latter surrounded and shielded by the silica matrix.

Solar Light CO Photoreduction Enhancement by Mononuclear Rhenium(I) Complexes: Characterization and Mechanistic Insights.

The catalytic efficacy of a novel mononuclear rhenium(I) complex in CO reduction is remarkable, with a turnover number (TON) of 1517 in 3 h, significantly outperforming previous Re(I) catalysts. This complex, synthesized via a substitution reaction on an aromatic ring to form a bromo-bipyridine derivative, = 2-bromo-6-(1-pyrazol-1-yl)pyridine, and further reacting with [Re(CO)Cl], results in the facial-tricarbonyl complex [ReL1(CO)Cl] (). The light green solid was obtained with an 80% yield and thoroughly characterized using cyclic voltammetry, nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectroscopy, and ultraviolet-visible (UV-vis) spectroscopy.

A redox-active organic cage as a cathode material with improved electrochemical performance.

Organic cages offer numerous opportunities for creating novel materials suitable for a wide range of applications. Among these, energy-related applications are beginning to attract attention. We report here the synthesis of a [3 + 6] trigonal prismatic cage constituted by three redox-active dibenzotetraazahexacene subunits.

Tailoring of structural, morphological, electrical, and magnetic properties of LaMn Fe O ceramics.

This study undertakes a comparative analysis of the structural, morphological, electrical, and magnetic characteristics of Fe-doped LaMnO ceramics. The solid-state reaction method was used to prepare Fe-doped LaMnO at different concentrations (0.00 ≤ ≤ 1.

Investigating Fe-doped BaNiMnFeO ( = 0, 0.2) ceramics: insights into electrical and dielectric behaviors.

This study investigates the characteristics of the BaNiMnFeO perovskite compound, focusing on its structural and electrical aspects under varying Fe doping levels at the Mn-site ( = 0, 0.2). X-ray diffraction patterns confirm the material's consistent structure, with Fe ions substituting Mn ions while maintaining their identical ionic radius.

Designing dynamic coordination bonds in polar hybrid crystals for a high-temperature ferroelastic transition.

Ferroelastic materials have gained widespread attention as promising candidates for mechanical switches, shape memory, and information processing. Their phase-transition mechanisms usually originate from conventional order-disorder and/or displacive types, while those involving dynamic coordination bonds are still scarce. Herein, based on a strategic molecular design of organic cations, we report three new polar hybrid crystals with a generic formula of AA'RbBiCl (A = A' = MeSO for 1; A = MeSO and A' = MeN for 2; A = A' = MeNNH for 3).

Preparation and evaluation of a niosomal delivery system containing extract and study of its anti- activity.

extract (GME) has severe pharmacokinetic deficiencies and is made up of a variety of bioactive components. GME has proven its anti- effectiveness. In this investigation, a GME-loaded niosome was developed to increase its potential therapeutic efficacy.

Multigenerational exposure of Ag materials (nano and salt) in soil - environmental hazards in (Oligochaeta).

Because of its properties, silver is among the most used metals both as salt and as nanomaterials (NMs), hence reaching the environment. Multigenerational (MG) exposure testing is scarce, and especially so for NMs and soil invertebrates. In this study the MG effects of Ag NMs (Ag NM300K) and Ag salt (AgNO) were assessed, using in LUFA 2.

Composite MAX phase/MXene/Ni electrodes with a porous 3D structure for hydrogen evolution and energy storage application.

MXenes, a family of two-dimensional (2D) transition metal carbides, have been discovered as exciting candidates for various energy storage and conversion applications, including green hydrogen production by water splitting. Today, these materials mostly remain interesting objects for in-depth fundamental studies and scientific curiosity due to issues related to their preparation and environmental stability, limiting potential industrial applications. This work proposes a simple and inexpensive concept of composite electrodes composed of molybdenum- and titanium-containing MAX phases and MXene as functional materials.

Lead-free organic-inorganic azetidinium alternating metal cation bromide: [(CH)NH]AgBiBr, a perovskite-related absorber.

In the last decade, organic-inorganic hybrid halide perovskite materials have developed into a very large research area in photovoltaics and optoelectronics as promising light harvesters. Lead-free double perovskites have recently been investigated as an environmentally friendly alternative to the lead-containing compositions. However, lead-free organic-inorganic hybrid halide double perovskites have so far rarely been produced due to a certain complexity in their synthesis.

Advances in photocatalytic degradation of organic pollutants in wastewaters: harnessing the power of phthalocyanines and phthalocyanine-containing materials.

Access to clean water is increasingly challenging worldwide due to human activities and climate change. Wastewater treatment and utilization offer a promising solution by reducing the reliance on pure underground water. However, it is crucial to develop efficient and sustainable methods for wastewater purification.

Correction: Light-enhanced electrical behavior of a Au/Al-doped ZnO/p-Si/Al heterostructure: insights from impedance and current-voltage analysis.

[This corrects the article DOI: 10.1039/D3RA06340B.].

Light-enhanced electrical behavior of a Au/Al-doped ZnO/p-Si/Al heterostructure: insights from impedance and current-voltage analysis.

In this study, we meticulously deposited an Al-doped ZnO nanoparticle thin film on a p-type silicon substrate using the precise sputtering method. We conducted a comprehensive exploration of the film's structure, morphology, and optical properties. X-ray diffraction (XRD) confirmed its polycrystalline wurtzite configuration with a dominant (002) orientation.

Exploring bismuth-doped polycrystalline ceramic BaBiNiMnO: synthesis, structure, and electrical properties for advanced electronic applications.

This manuscript investigates the structural and electrical properties of a BaBiNiMnO (BNMO) perovskite compound synthesized through the sol-gel method. The orthorhombic crystal structure of the sample is confirmed by X-ray diffraction analysis. The electrical conductivity of BNMO is found to increase with frequency, indicating the presence of local charge carriers.

The key role of pretreatment for the one-step and multi-step conversions of European lignocellulosic materials into furan compounds.

Nowadays, an increased interest from the chemical industry towards the furanic compounds production, renewable molecules alternatives to fossil molecules, which can be transformed into a wide range of chemicals and biopolymers. These molecules are produced following hexose and pentose dehydration. In this context, lignocellulosic biomass, owing to its richness in carbohydrates, notably cellulose and hemicellulose, can be the starting material for monosaccharide supply to be converted into bio-based products.

An autonomous power temperature sensor based on window-integrated transparent PV using sustainable luminescent carbon dots.

The energy efficiency of buildings can be significantly improved through the use of renewable energy sources. Luminescent solar concentrators (LSCs) appear to be a solution for integrating photovoltaic (PV) devices into the structure of buildings (windows, for instance) to enable low-voltage devices to be powered. Here, we present transparent planar and cylindrical LSCs based on carbon dots in an aqueous solution and dispersed in organic-inorganic hybrid matrices, which present photoluminescent quantum yield values up to 82%, facilitating an effective solar photon conversion.

Magneto-structural studies on a number of doubly end-on cyanate and azide bridged dinuclear nickel(ii) complexes with {NO} donor Schiff base ligands.

Two new doubly -N bridged (1 and 3) and six new doubly -NCO bridged Ni complexes (2, 4-8) with six different NO donor Schiff base ligands have been synthesized and magneto-structurally characterized. All these neutral complex molecules are isostructural and constitute edge sharing bioctahedral structures. Magnetic studies revealed that all these complexes exhibit ferromagnetic interaction through bridging pseudohalides with ferromagnetic coupling constant being significantly higher for azide-bridged complexes than that of the cyanate analogues.

Brushite mineralised Scots pine ( L.) sapwood - revealing mineral crystallization within a wood matrix by XRD.

Dicalcium phosphate dihydrate (CaHPO·2HO, DCPD, brushite) crystals were synthesised within Scots pine sapwood a wet-chemistry route from aqueous solutions of Ca(CHCOO) and NHHPO salts. SEM/EDS analysis was used to assess the saturation of the wood cell lumina and cell wall as well as morphological features and elemental composition of the co-precipitated mineral. Brushite mineral crystallization and crystallite growth within the wood matrix was studied by XRD.

Recovery of bacterioruberin and proteins using aqueous solutions of surface-active compounds.

Haloarchaea microorganisms are little explored marine resources that can be a promising source of valuable compounds with unique characteristics, due to their adaptation to extreme environments. In this work, the extraction of bacterioruberin and proteins from ATCC 33500 was investigated using aqueous solutions of ionic liquids and surfactants, which were further compared with ethanol. Despite the good performance of ethanol in the extraction of bacterioruberin, the use of aqueous solutions of surface-active compounds allowed the simultaneous release of bacterioruberin and proteins in a multi-product process, with the non-ionic surfactants being identified as the most promising.

Impact of atomic layer deposited TiO on the photocatalytic efficiency of TiO/w-VA-CNT nanocomposite materials.

Titanium oxide (TiO) has been widely investigated as a photocatalytic material, and the fact that its performance depends on its crystalline structure motivates further research on the relationship between preparation methods and material properties. In this work, TiO thin films were grown on non-functionalized wave-like patterned vertically aligned carbon nanotubes (w-VA-CNTs) the atomic layer deposition (ALD) technique. Grazing incidence X-ray diffraction (GIXRD) analysis revealed that the structure of the TiO/VA-CNT nanocomposites varied from amorphous to a crystalline phase with increasing deposition temperature, suggesting a "critical deposition temperature" for the anatase crystalline phase formation.

Corrosion protection performance of silicon-based coatings on carbon steel in NaCl solution: a theoretical and experimental assessment of the effect of plasma-enhanced chemical vapor deposition pretreatment.

Using a plasma-assisted chemical vapor deposition (PACVD) process, carbon steel samples were coated with an organosilicon layer less than 2.5 microns thick. Ellipsometry, Fourier transform infrared (FTIR) spectroscopy, contact angle, scanning electron microscopy (SEM), and atomic force microscopy (AFM) were used to analyze the films.

Study of the influence of 2.5% Mg insertion in the B-site of LaCaPbFeO on its structural, electrical and dielectric properties.

This work involves the synthesis and study of physical properties of the LaCaPbFeMgO compound, which has been characterized by various experimental techniques, such as X-ray diffraction, SEM and complex impedance spectroscopy. The structural study showed that the LaCaPbFeMgO compound crystallized in the orthorhombic structure with the space group. The particle size and the surface morphology of this compound have been analysed using SEM.

Structural, morphological, Raman, dielectric and electrical properties of La Ba Bi FeO (0.00 ≤ ≤ 0.20) compounds.

La Ba Bi FeO (0.00 ≤ ≤ 0.20) nanoparticles were prepared by the auto-combustion method using glycine as a combustion fuel.

Investigation of temperature and frequency dependence of the dielectric properties of multiferroic (LaCa)BiFeO nanoparticles for energy storage application.

In this work we synthesized the multifunctional (LaCa)BiFeO material using a sol-gel process. Structural and morphologic investigations reveal a perovskite structure at room temperature with spherical and polygonal nanoparticles. A detailed study of the temperature dependence of the dielectric and electrical properties of the studied material proves a typical FE-PE transition with a colossal value of real permittivity at 350 K that allows the use of this material in energy storage devices.

Recent Progress on Polysaccharide-Based Hydrogels for Controlled Delivery of Therapeutic Biomolecules.

A plethora of applications using polysaccharides have been developed in recent years due to their availability as well as their frequent nontoxicity and biodegradability. These polymers are usually obtained from renewable sources or are byproducts of industrial processes, thus, their use is collaborative in waste management and shows promise for an enhanced sustainable circular economy. Regarding the development of novel delivery systems for biotherapeutics, the potential of polysaccharides is attractive for the previously mentioned properties and also for the possibility of chemical modification of their structures, their ability to form matrixes of diverse architectures and mechanical properties, as well as for their ability to maintain bioactivity following incorporation of the biomolecules into the matrix.