Details of the complex formed between pentacyanoferrate(II) and chitosan [4PMCFe(CN)5]3− are reported. The polymer was characterized by infrared and Mössbauer spectroscopy, and cyclic voltammetry. The infrared spectrum for [4PMCFe(CN)5]3− contains a very strong band at 2041 cm−1 due to the CN ...
Here we report on synthesis of new organic–inorganic materials based on products of interaction between sodium aminoprusside and polymer ligands (chitosan (CS), N-2-(2-pyridyl)ethylchitosan (2-PC), N-2-(4-pyridyl)ethylchitosan (4-PC), N-(4-methyl-5-imidazolyl)methylchitosan (IC), N-(2-cyanoethy...
The solvatochromic behavior of novel synthesized azo-containing viologen-based rotaxanes, combining push–pull linear and α or β-cyclodextrin macrocyclic components is examined. These rotaxanes are stoppered by pentacyanoferrate(II) units. The latter stabilize these systems and furthermore act...
The impact of solvent basicity on the solvatochromism of pentacyanoferrate(II) complexes has scarcely been discussed. In this work a study of the influence of solvent basicity on the local effects occurring in binary solvent mixtures consisting of an amide and water or an alcohol and water is re...
Comparative kinetic and equilibrium studies on the formation and dissociation of three mono- and one bis-pyridinium-4-aldoxime pentacyanoferrate(II) complexes have been carried out in aqueous solutions at 25 °C and I = 0.1 M. The synthesis, spectroscopic and thermal characterization of a new N-...
Thieno[2,3-d]pyrimidin-4-one (LN,S) and pyrimidone (LN) pentacyanoferrate(II/III) complexes, [FeII/III(CN)5(L)]3−/2−, were prepared in H2O/DMF (3:1) solutions and characterized by spectroscopic (UV–vis), electrochemical (cyclic voltammetry), and spectroelectrochemical techniques. Results indica...
An electrode made of loofah sponge derived activated carbon supported on nickel foam (AC/Ni) was successfully fabricated and used to remove ammonium ion (NH4+) from aqueous solution. A multilayer adsorption isotherm was used to describe ammonium electro-sorption on AC/Ni electrodes at different ...
Ammonium sulfate roasting-water leaching technology is a potential cleaner production process with low energy consumption, minor equipment corrosion and high selectivity contrasted with the traditional metallurgy process. Thermodynamic analysis showed that the main mineral of serpentine and magn...
Phytomining, now called agromining, consists of growing hyperaccumulator plants in order to farm metals and recover them from the biomass. This technology enables us to extract metals from secondary resources (e.g. metal containing-soils, mineral wastes, polluted soils) and manufacture high-valu...
We report the Co-substituting on the synthesis and properties of garnet type dysprosium ferrite nanoparticles by basic composition Dy3Fe5−xCoxO12 (x = 0–0.06) synthesized through glycine assisted combustion method. A possible formation mechanism of synthesized Dy3Fe5−xCoxO12 samples by controll...
Rational use of self-organized materials may contribute in developing new structures and devices in practical technology. Synthetic metallo-supramolecular gels are generally designed with transitional metal-directed process. However, the assembly of both lanthanide and sodium alginate in macromo...
Separation of neodymium (Nd3+), praseodymium (Pr3+), and dysprosium (Dy3+) from a waste Nd magnet has been investigated using a solvent-impregnated resin (SIR) containing 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester coated with polyvinyl alcohol crosslinked by glutaraldehyde. A large amou...
Dysprosium iron garnets are of scientific importance because of the wide range of magnetic properties that can be obtained in substituting dysprosium by a rare earth metal. In the present work, the effect of Mn substitution on magnetostructural changes in dysprosium ferrite nanoparticles is stud...
The white light emitting dysprosium doped calcium sulfide (CaS) nanophosphors were synthesized via solid-state diffusion method. The prepared phosphors were characterized using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), photoluminescence (PL) spectroscopy and UV–Vis a...
The pertraction of Dysprosium (Dy) from nitric acid medium through emulsion liquid membrane (ELM) using di-2-ethylhexylphosphoric acid (D2EHPA) as the carrier extractant in kerosene as the diluent has been systematically investigated. The complexation stoichiometric coefficient and equilibrium c...
To investigate the contribution of autochthonous microflora on free fatty acids (FFA) release and flavor development in low-salt fermented fish, three groups of processed fish, including bacteriostatic-acidification group (BAG), bacteriostatic group (BG), and spontaneous fermented fish (CG) were...
The use of industrial waste streams as a source of biomass is beneficial, not only to reduce environmental problems, but also to save valuable resources. Waste streams containing volatile fatty acids (VFAs) are one such example. However, separation from these streams is challenging because of th...
The influence of various carboxylic acids (from C2 to C18) one equilibrated and emulsified surfactant/oil/water (SOW) systems is investigated. The PIT-slope method, based on the influence of an additive on the PIT of the C10E4/n-octane/10−2 M NaCl(aq) reference emulsion, shows that from butanoic...
It has been shown that polyunsaturated fatty acids such as arachinonic and docosahexanoic acids but not monounsaturated and saturated long-chain fatty acids promote basal and nerve growth factor (NGF)-induced neurite extension of PC12 cells, a line derived from a rat pheochromocytoma. On the oth...
Laser-ablated ruthenium or osmium atom reactions with CO and NO mixtures in solid argon produce unsaturated metal carbonyl nitrosyls including M(CO)(NO) and 18-electron configuration M(CO)2(NO)2 molecules (M = Ru, Os). The observed absorption bands of reaction products are identified by isotopic...
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