Compound samples based on the mineral-like magnesium potassium phosphate matrix MgKPO4 × 6H2O were synthesized by solidification of high level waste surrogate. Phase composition and structure of synthesized samples were studied by XRD and SEM methods. Compressive strength of the compounds is 12...

Suspension stability of nano-sized (50 nm) barium titanate (BaTiO3) with different non-aqueous solvents and phosphate esters has been investigated by means of zeta potential, hydrophilic lipophilic balance (HLB) value, adsorption, sedimentation and viscosity measurements. Without dispersants add...

Crystalline hybrid organic/inorganic ion exchangers based on zirconium phosphate and phosphonate compounds were evaluated for application in radium-223 generator for radiopharmaceutical applications. Various compositions were synthesized and the selectivity of these materials was determined for ...

Phosphorus (P) is a non-renewable natural resource which is used extensively in agriculture as a fertilizer. Phosphate (PO43−) rocks are mined to meet growing agricultural demands induced by rising global populations. Much of the P used in agricultural fields finds its way into surface waters wh...

The Er3+-doped calcium barium phosphate glasses with chemical composition 30CaO:20BaO:(50-x)P2O5:xEr2O3 (where x = 0.05, 0.10, 0.50, 1.00 and 2.00 mol%) were prepared by melt-quenching technique. The optical and NIR luminescence properties of the glass samples were investigated to determine the ...

Optical, FTIR, ESR investigations of prepared undoped barium metaphosphate glass and other samples with the same basic composition containing varying V2O5 contents (0.5, 1, 2, 3%) were carried out before and after gamma irradiation. The undoped glass shows a strong UV optical absorption which is...

The ultrasound effect applied on potassium dihydrogen phosphate was investigated in a continuous crystallization system. The studied process variables were ultrasonic power (W) and residence time. The crystal size distributions of the final products obtained with and without ultrasonic power wer...

Zinc and barium metaphosphate glasses containing dopants of MnO2 (2, 4, 8%) were prepared. Collective studies were carried out through optical, photoluminescence and Fourier transform infrared (FTIR) spectral measurements for the prepared glasses before and after gamma irradiation. Electron spin...

The simultaneous electroleaching-electrodeposition of silver was studied systematically to develop an alternate process for the recovery of metallic silver. The system was assessed employing electrochemical and microstructural characterization techniques in a thiosulfate-ammonia medium. The elec...

The anodic current in individual and mixed thiosulfate-sulfite solutions was studied by means of voltammetry on a fresh gold RDE surface. An unexpected result was obtained: a new additional current maximum appears on the anodic voltammogram in mixed solutions; it is not observed in the individua...

A panel of 223 alcohol consumers recruited in a liquor store participated in a survey/best–worst experiment investigating perceptions on sulfites and willingness to pay for non-sulfited wines. We find that 34% of our sample experiences headaches after consuming moderate amounts of wine, and sul...

An amperometric sulfite sensor was fabricated based on nickel hexacyanoferrate (NiHCF) electrodeposited on a layer of ordered mesoporous carbon covering on a gold electrode surface (NiHCF/OMC/Au). The prepared NiHCF/OMC/Au displayed good electrocatalytic activity towards the oxidation of sulfite...

The adoption of silver nanoparticles in consumer goods has raised concerns about the potential environmental harm of their widespread use. We studied chemical transformations that Ag NPs may undergo as they pass through sulfide-rich conditions common in waste water treatment plants (WWTPs), whic...

This paper reports the synthesis and characterization of the water-soluble form of 3-n-propyl(4-methylpyridinium) silsesquioxane chloride (Si4Pic+Cl−), which showed potential for application as a stabilizing agent for gold nanoparticles (AuNP). Dispersed and stable suspensions of nanoparticles, ...

Anode slime is an important secondary resource for recovery of silver. However, high energy consumption and serious pollution limit the recovery with current processes. In this study, an effective and environmentally friendly process was developed for selective recovery of silver from copper ano...

The electroreduction kinetics of silver sulfite complexes was investigated by electrochemical fast Fourier transform (FFT) impedance spectroscopy (0.061–1500 Hz). The time dependences of the real and imaginary components of impedance were determined in a solution containing 0.05 M Ag (I) and 1 ...

The electroreduction kinetics of silver sulfite complexes was investigated by rotation disk electrode (RDE) voltammetry, chronopotentiometry (CP) and electrochemical impedance spectroscopy (EIS). The stability constants of the silver sulfite complexes, pβ2 = 7.9 and pβ3 = 8.53 were determined....

A new La3+-doped Co3O4 nanocubes based screen printed electrochemical sensor was effectively used to determine sulfite. The electrochemical oxidation activity of sulfite was considered in PBS (pH 7.0) with voltammetry method. The obtained results presented that the new electrode has an electroca...

A simple, and reliable colorimetric detection method for manganese ion (Mn2+) based on pyrophosphate capped silver nanoparticles (P2O74−-AgNPs) is developed. The P2O74−-AgNPs was synthesized by wet chemical method. The P2O74−-AgNPs solution shows a yellow color and the maximum absorption at 403 ...

Desensitized ionene-stabilized gold and silver nanoparticles were prepared and applied as colorimetric probes for single-step determination of pyrophosphate at the relatively high concentration level. The approach is based on aggregation of the nanoparticles leading to the change in their absorp...