An optimized detecting methyl parathion (MP) electrochemical sensor, fluorine tin oxide (FTO) electrodes modified by copper oxide doped zirconium oxide microfibers (CuO-ZrO2-MFs), has been successfully prepared. The CuO-ZrO2-MFs were characterized by scanning electron microscopy (SEM), energy di...

Zirconium oxide coatings were produced by induction heat treatment (IHT) of E110 zirconium. The IHT was performed at temperatures within 600–1200 °C for 30–300 s. According to the results of scanning electron microscopy (SEM), energy dispersive analysis (EDX), X-ray diffraction (XRD), and nan...

Cadmium zinc sulphide thin films with high charge mobilities are obtained from acidic chemical baths employing the corresponding metal chlorides, urea and thioacetamide. The films are characterized by powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, induc...

Optical investigation on blue shift behavior of zinc doped cadmium sulphide nano-crystalline thin films have been prepared by spray pyrolysis method at 375 ± 10 °C. The crystallinity and phase have been characterized by glancing angle X-ray diffraction. The XRD peaks confirm the hexagonal stru...

Cadmium sulfide (CdS) coated zinc oxide photoanode is prepared using two step deposition processes at relatively low temperature. The zinc oxide (ZnO) were deposited on the conducting glass substrates using doctor blade technique followed by the coating of CdS over ZnO at room temperature using ...

Ternary cadmium zinc sulfide (Cd1−xZnxS) thin films were deposited by chemical bath deposition method for the entire range of 0 ≤ x ≤ 1 from acidic chemical bath using tartaric acid and hydrazine as a complexing agents. The X-ray diffraction (XRD) studies revealed that the deposited thin films...

The cadmium zinc sulfide (CdZnS) nanostructured powders with different morphologies such as nanorods, urchin like, microsphere were synthesized by co-precipitation method. In this approach, zinc nitrate (Zn(NO3)2), cadmium nitrate dihydrate (Cd(NO3)2·2H2O) and mercaptoacetic acid (MAA) were use...

The effects of air, hydrogen, and CO2 and O2 mixture sintering atmospheres on the structure, micromorphology, electron emission capability and environmental stability of 612 type barium-calcium-aluminates have been investigated. Both the 6BaO-1CaO-2Al2O3 aluminates sintered in air and hydrogen c...

In order to optimize the synthesis process of barium-calcium-aluminate (BCA) for the application of impregnated dispenser cathodes, the influence of two precipitants, ammonium carbonate (AC) and ammonium hydrogen carbonate (AHC), on the chemical composition, phase transformation, thermal behavio...

The enthalpies of solution of (NH4)2B4O7·4H2O (cr) and NH4B5O8·4H2O (cr) in approximately 1 mol dm−3 aqueous hydrochloric acid solution, as well as the enthalpy of solution of NH4Cl (cr) in aqueous (hydrochloric acid + boric acid) have been measured by using a microcalorimeter. From these resu...

The current work investigated the effects of zinc borate (ZB), ammonium polyphosphate (APP)/ZB and alumina trihydrate (ATH)/ZB hybrids as flame retardants on the flammability, calorimetric, thermal and mechanical performances of empty fruit bunch (EFB) fiber reinforced epoxy composites. The form...

In the presence of a catalytic amount of ammonium chiral borate salt, asymmetric Friedel-Crafts alkylation of indoles with α,β-disubstituted enals proceeded to give the corresponding 1,4-addition products with moderate enantioselectivities.

Two samples of larderellite (NH4)B5O7(OH)2·H2O from Monte Rotonda (Italy) have been studied. Spectroscopic methods, like infrared and Raman spectroscopy, were used in combination with thermal analysis and X-ray diffraction. The main objective was vibrational characteristic of research mineral a...

Interfacial reaction kinetics for reactive extraction of penicillin G from aqueous solutions by Amberlite LA-2 in a mixture of kerosene and n-butyl acetate were studied using a microporous membrane-based stirred cell. This operation gave intrinsic rate equations for formation and dissociation of...

Extraction equilibria of 2,4,6-Trinitrophenol (picric acid (PAH)) between aqueous and organic phases was investigated at 298.15 K. All experiments was reported on the extraction of picric acid by amberlite LA2 which is secondary amine dissolved in different seven (7) esters such as diethyl malon...

Equilibrium studies on the distribution of penicillin G between aqueous solutions and Amberlite LA-2 (a secondary amine) in mixtures of n-butyl acetate and kerosene were made in the temperature range 288–308 K. Experiments were performed as a function of aqueous pH, penicillin G concentration i...

Chromium(VI) is a very harmful metal, highly toxic and carcinogenic in nature. Its separation from industrial effluents is of primordial importance. An extensive study on selective extraction and concentration of chromium(VI) from the acidic solutions containing various metal ions using an emuls...

In present study, selective extraction of cadmium from acidic leach solutions, containing various heavy metal ions, by emulsion liquid membrane (ELM) is studied. For this reason, the zinc plant copper cake was leached with sulfuric acid and main acidic leach solution containing Zn(II), Cu(II), F...

Amberlite LA-2 (a secondary amine) was studied for its ability to extract propionic acid at different amine concentrations. The extraction of propionic acid by Amberlite LA-2 dissolved in seven single solvents (cyclohexane, 2-octanone, toluene, methyl isobutyl ketone, isooctane, haxane and 1-oct...

A simple and low-cost method was developed to prepare poly-silicic-cation coagulant (PSiC) from industrial wastes. The structure and morphology of the coagulants with different Si/(Al + Fe) molar ratios were characterized by X-ray diffraction (XRD), infrared spectra (IR), ultraviolet/visible abs...