The efficient photoreductive removal of chromate [Cr(VI)] in aqueous solution was successfully demonstrated using potassium iodide (KI) excited by 254 nm irradiation. The photoexcited iodides react with Cr(VI) (as an electron acceptor) with transforming Cr(VI) to Cr(III) and I− to I3- at the sam...

ObjectivesPhosphoryl oligosaccharides of calcium (POs-Ca) are a highly soluble calcium source and can keep the solubility of calcium and fluoride ions. The aim of this study was to investigate the effect of calcium (from POs-Ca) and fluoride ions penetrate into subsurface enamel lesions in vitro.

Mg-Fe-NO3-LDH, a nitrate intercalated pyroaurite-like anion exchangeable clay, was synthesized for treating both tungsten- and molybdenum-bearing waters in this study. The maximum sorption capacities of Mg-Fe-NO3-LDH for aqueous tungsten and molybdenum were up to 69.9 mg/g and 21.3 mg/g, respect...

The reactions of molybdenum(II) and (III) chlorides with liquid ammonia have been studied at the boiling point of ammonia and at room temperature respectively. Whereas the divalent chloride only forms an ammoniate [(Mo6Cl8)Cl4,4NH3], the tervalent chloride is solvolysed with the formation of MoC...

Detailed extraction of molybdenum(VI) from alkaline sodium hydroxide solution by quaternary ammonium salt (Aliquat 336, R3CH3NOH) mixed with kerosene was investigated. The different factors affecting the extraction system such as time of shaking, alkali, extractant, metal ion concentrations, tem...

We introduce for first time a facile protocol for the rapid synthesis of a molybdenum nanoclusters (MoNCs) at room temperature using thiolated dithiothreitol (DTT) as capping agents. The initial fluorescence from the MoNCs is observed in 30 min and further intensified in 48 h. The mean diameter ...

Both Al and Ga have exhibited excellent performance, respectively, for the An/Ln separation based on molten salt electrolysis, and the Al-Ga composite cathode may have superior properties. Therefore, in this work, the electrochemical behaviors of Ce (III) on the binary Al-Ga electrode were syste...

Titanium-zirconium-molybdenum (TZM) alloy was fabricated by using powder metallurgy and rolling techniques. Electrochemical corrosion behavior of the alloy was studied quantitatively using potentiodynamic polarization and scanning electron microscope. Effect of different chloride ions concentrat...

The photocatalytic ability of BiVO4 toward water oxidation is limited by the short charge diffusion path. Several strategies are proposed to increase the charge diffusion path and reduce the charge recombination of BiVO4. This work firstly applies a one-step solution method to synthesize the BiV...

The roasting of molybdenum concentrates using NaCl has been carried out. During the roasting process, Mo is present both as a gas (25–40%) and as solid residue (60–75%). Molybdenum chloride and oxychloride condensate both dissolve in the alkaline solution with molybdenum recovery up to 100%. T...

Silicide coatings including MoSi2 and Si-MoSi2 were prepared on molybdenum substrates by electrodeposition in NaCl-KCl-NaF-K2SiF6 molten salt. The experimental was conducted under different cathodic current densities at the temperature of 1073 K. The effect of the current density on the microstr...

In order to recycle magnesium ammonium phosphate (MgNH4PO4⋅6H2O: MAP) obtained from MAP process, which is one of the attractive processes for removal of aqueous ammonium and phosphate from wastewater, ammonium elimination from MAP to magnesium phosphates and ammonium incorporation into the magne...

3D powder printing is a versatile method for the fabrication of individual bone implants and was used for the processing of in vivo degradable ceramic scaffolds based on ammonium magnesium phosphate hexahydrate (struvite). In this study, synergetic effects could be achieved by the substitution o...

Understanding reaction mechanisms of magnesium potassium phosphate (MKP) cement is of significant importance, as it is closely related to the optimum design of MKP cement-based materials. In this study, reaction mechanisms of MKP cements with a high magnesium-to-phosphate (Mg/PO4) molar ratio of...

The Fourier transform infrared and Raman spectra of magnesium potassium phosphate hexahydrate and a series of its deuterated analogues were recorded and analyzed. By comparing the spectra recorded at room temperature with those obtained at the boiling temperature of liquid nitrogen and by studyi...

The Fourier transform infrared spectra recorded from room temperature down to the boiling temperature of liquid nitrogen of two struvite analogues, nickel ammonium phosphate hexahydrate (NiNH4PO4·6H2O) and nickel potassium phosphate hexahydrate (NiKPO4·6H2O) and their partially deuterated anal...

Magnesium-to-phosphate (Mg/PO4) and water-to-cement (w/c) ratios are important factors controlling hydration and properties of magnesium potassium phosphate (MKP) cements. This study investigated the influence of Mg/PO4 molar ratios (2.7, 4 and 8) and w/c (0.25 and 5) on cement hydration, compre...

The Fourier transform infrared and Raman spectra of magnesium ammonium arsenate hexahydrate, MgNH4AsO4 · 6H2O (arsenstruvite) and of its deuterated analogues were recorded at room temperature (RT) and the boiling temperature of liquid nitrogen (LNT). Not surprisingly, the spectra show pronounce...

Nutrients recovery from urine to close the nutrient loop is one of the most attractive benefits of source separation in wastewater management. The current study presents an investigation of the thermodynamic modeling of the recovery of P and K from synthetic urine via the precipitation of magnes...

Magnesium ammonium phosphate hexahydrate, MgNH4PO4·6H2O (synthetic struvite) is a well-known biomineral, its major biological importance being related to its presence in human urinary sediments and vesical and renal calculi. The Fourier transform infrared and Raman spectra of magnesium ammonium...