Highly efficient microwave-assisted solvent- and catalyst-free multicomponent synthesis of 5-R-imino-[4-trialkylsilyl(germyl)]-1H-1,2,3-triazoles from Si/Ge-substituted propynals, trimethylsilyl azide and functionalized primary amines has been developed. In the case of 2-aminoethanethiol, 4-elem...

The presence of halogenated organophosphate flame retardants in natural water systems is a widespread concern because of their potential threat to human health and the environment. TiO2 photocatalysis at 350 nm leads to rapid degradation of tris (2-chloroethyl) phosphate (TCEP). The observed deg...

Three CeO2 samples with different morphologies, i.e., cubes, rods, and spindles, were synthesized and investigated for 2-chloroethyl ethyl sulfide (2-CEES) degradation. The samples were characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray p...

Recently, chiral ionic liquids (ILs) have drawn increasing attention in chiral separation field; however, few papers reported the application of chiral ILs for chiral separation by capillary electrophoresis (CE), and among the papers, chiral ILs were mainly applied as additives to β-cyclodextri...

Vanadium–sodium silicate glasses with the chemical composition [(V2O5)x(Na2O)0.30(SiO2)0.70−x] (0.0⩽x⩽0.10) have been studied by X-ray photoelectron spectroscopy (XPS) and magnetization measurements. The core-level binding energies of O 1s, V 2p and Si 2p in these glasses have been measured for...

A novel environment-friendly method based on stepwise roasting has been proposed to extract vanadium and chromium separately from vanadium slag with high chromium content (V–Cr slag), which consists of two stages of sodium roasting–water leaching. Fractional sodium roasting–water leaching is ...

The Na2ZnV2O7 compound was obtained by the conventional solid-state reaction. The sample was characterized by X-ray powder diffraction, Raman and impedance spectroscopy. The ac electrical conductivity and dielectric properties have been investigated in the frequency and temperature range of 200 ...

Copper hexaoxodivanadate (CuV2O6) and copper pyrovanadate (Cu2V2O7) films were fabricated via electrostatic spray deposition for use as photoanodes for solar water splitting. The fabricated films were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectros...

The novel vanadium oxides Rb2CaV2O7 and Cs2CaV2O7 have been prepared by solid-state reaction and their crystal structures determined and refined using X-ray, neutron powder and electron diffraction data. Rb2CaV2O7 and Cs2CaV2O7 are isostructural, crystallizing in space group P21/n with unit cell...

Copper pyrovanadate with spherical nanosize particles was successfully prepared from a mixture of vanadic acid solution and copper(I) oxide. Comparisons of X-ray diffraction profiles, scanning and transmission electron micrographs of particles of copper pyrovanadate obtained by using vanadic aci...

The pyrovanadates M2V2O7, where MII = Mn, Co, Ni, Cu and Zn, have been investigated for the oxidative dehydrogenation of isobutane from 300 to 450 °C, both with and without 5 wt% gold nanoparticles. Reduction of the pyrovanadate compounds was generally observed, yielding products that contained...

It is necessary to conveniently and quickly detect the concentrations of ethanol in different environments. A new type of zinc pyrovanadate (Zn3(OH)2V2O7·2H2O) nanosheet spheres is obtained by a convenient single cation-exchange process using sodium vanadate (Na5V12O32) nanowires as precursor, ...

Samarium doped ceria (SDC) powders as solid electrolyte ceramics were successfully prepared via thermal decomposition of metal organic complexes containing triethanolamine (TEA) as a ligand. The SDC powders synthesized using various samarium doping contents were characterized by X-ray diffractom...

The boron triiodide-N,N-diethylaniline complex, generated in situ from borane:N,N-diethylaniline and iodine cleaves ethers and regenerates carbox-aldehydes from the corresponding geminal diacetate derivatives under mild conditions in good yields.Recently a simple procedure for the preparation of...

Boron triiodide-N,N-diethylaniline complex efficiently cleaves lactones to the corresponding ω-iodocarboxylic acids and esters which are isolated in good yields.

A rapid and precise method for the determination of barium in bone is presented. Barium as the nitrate is directly separated from calcium by co-precipitation with added strontium using fuming nitric acid. Atomic absorption measurements are made at 553.6 nm using a nitrous oxide-acetylene flame i...

This study examined reactions of NOM with chloramine in the presence of varying iodide concentrations using in situ methods of absorbance and fluorescence. The data showed that the consumption of iodide during chloramination could be quantified by the differential absorbance of NOM at 225 nm. Ex...

Water pollution with mercury is a global concern. Therefore, establishing a rapid and accurate detection method is urgently required. Nanosensors can be a perfect alternative to instrument detection. In order to overcome low sustainability of sensors, a new composite nanosensor of sodium alginat...

In this work, a potentiometric flow injection method is described for the fast bi-parametric determination of iodide and iodate in urine and salt samples. The developed methodology aimed for iodine speciation with a potentially portable system (running on batteries). The iodate reduction to iodi...

Triclosan, triclocarban, 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), and bisphenol A (BPA) have been reported to disturb thyroid hormone (TH) homeostasis. We have examined the effects of these chemicals on sodium/iodide symporter (NIS)-mediated iodide uptake and the expression of genes involv...