Iron–chromium nanoparticles (NPs) were obtained through the thermal decomposition of μ3-oxo heterotrinuclear {FeCr2O} acetate in the presence of sunflower oil and dodecylamine (DA) as surfactants. The average diameter of the NPs was 3.5 nm, as estimated on the basis of transmission electron mi...

Stability of chromium in the ferrochrome slag dumps and leachate are affected by pH, redox potential and the presence of other metallic species in the slag. It is desirable to keep chromium in slag dumps in the trivalent [Cr(III)] state because trivalent chromium is 1000 times less toxic to livi...

An efficient preparation method of chromium-doped iron oxide nanoparticles of controlled size, chromium content and catalytic activity was developed. The catalysts were synthesized in an acidic hydrolysis of ferric chloride in order to obtain suspensions of spherical iron oxide nanoparticles wit...

Iron chromium oxide microspheres were generated by pulsed laser irradiation on the surface of two commercial samples of stainless steel at room temperature. An Ytterbium pulsed fiber laser was used for this purpose. Raman spectroscopy was used for the characterization of the microspheres, whose ...

Recent efforts to replace toxic hexavalent chromium oxide in commercial copper-chromium-iron oxide catalysts for the High-Temperature Water-Gas Shift (HT-WGS) reaction are reviewed. Advances in understanding the fundamentals of the HT-WGS reaction catalyzed by copper-chromium-iron oxide reveal t...

The aim of this study is to develop a new method for the preparation of high-value, environmentally friendly products from iron chromium grinding waste (ICGW). Using iron‑chromium hydroxide precursors from the wet treatment of ICGW as raw material, monodisperse micaceous iron oxide (MIO) has bee...

Reactions of transition metal oxides (V2O3, V2O5, Nb2O5, LiNbO3, Ta2O5, LiTaO3, MoO3 and Li2MoO4) with lithium silicide (Li2Si) and calcium silicide–magnesium silicide mix (CaSi2, Mg2Si) could be initiated by grinding, flame, filament or bulk thermal methods to produce a range of single phase t...

Phase selection during Ca silicide formation was discussed using the chemical potential and the effective heat of formation (ΔH′) models. The compositional analyses of Ca silicides were experimentally carried out in detail for both the layered and powder growth process. Based on the calculatio...

The electronic structure and morphology of calcium silicide films formed by reactive deposition epitaxy at 130 oC on Mg2Si film and at 500 oC on Si(111)7x7 surface, their optical and electrical properties have been investigated. Formation of new calcium silicide phase with high Si concentration,...

Aluminium dross, a waste generated from aluminium melting process, contains aluminium metal, aluminium oxide, aluminium oxy-nitride and impurities such as sodium chloride and potassium chloride. Since aluminium dross is land filled without treatment, it is hazardous to the environment. Conventio...

We introduce high-performance polyaniline (PANI) nanocomposite supercapacitors based on gamma aluminum oxide (γ-Al2O3) and gamma iron (III) oxide (γ-Fe2O3) nanoparticles with a high specific surface area. PANI and its polymer nanocomposites are synthesized via in situ electropolymerization on ...

We describe a rapid, sensitive, and label-free method to detect interferon-gamma (IFN-γ), a biomarker of latent tuberculosis infection (LTBI). IFN-γ is detected by measuring the capacitance change caused by its binding to an anti-IFN-γ antibody. The antibody is immobilized on the surface of a...

In this study, the nanometer in-situ γ-Al2O3 particles reinforced aluminum matrix composites was successfully fabricated by the A356 aluminum alloy and Co3O4 powder at 850 °C by means of in-situ reaction in the high temperature melt. The effects of γ-Al2O3 particle and cobalt element on the m...

Aluminum dross (AD) is a hazardous solid industrial tailing which is generated during aluminum and aluminum alloys production. The AD imposes very serious ecological and environmental problems. So, finding an appropriate solution to reduce, reuse, and recycle the AD is of upmost importance. This...

AimIonizing radiation interacts with biological systems through the generation of free radicals, which induce oxidative stress. Aluminium (Al) can negatively impact human health by direct interaction with antioxidant enzymes. Ellagic acid (EA) and Ferulic acid (FA) are plant polyphenolic compoun...

Polypyrrole (PPy) and polypyrrole-based gamma aluminum oxide (γ-Al2O3) and gamma iron (III) oxide (γ-Fe2O3) nanocomposites were synthesized via in situ electropolymerization methods Films were characterized via cyclic voltammetry (CV) and in situ spectroelectrochemistry methods such as in situ...

Aluminum hydroxide and oxide have been widely used for decontamination due to their environmentally friendly nature and cost effectiveness. Aluminum (hydro) oxides are the main phases of aluminum-derived environment materials. Herein, the solvent-free hydrothermal synthesis of gamma-aluminum oxi...

The effectiveness of batch UV, ozone, and UV/ozone induced oxidation processes in treatment of manganese and organics in reverse osmosis concentrate stream is evaluated. The most effective advanced oxidation techniques are identified and the optimum operating conditions are determined. Applicati...

The importance of manganese in the physiology of marine microbes, the biogeochemistry of the ocean and the health of microbial communities of past and present is emerging. Manganese is distributed widely throughout the global ocean, taking the form of an essential antioxidant (Mn2 +), a potent o...

The use of barite (BaSO4) in drilling fluids for oil and gas activities makes barium a potential contaminant in case of spills onto flooded soils, where low redox conditions may increase barium sulfate solubility. In order to select plants able to remove barium in such scenarios, the following s...