A composite spherical adsorbent was prepared with ammonium molybdophosphate (AMP), sodium alginate (NaALG), and calcium chloride. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to characterize the composite adsorbent. The adsorption of rubidium and cesium i...
The ability of 4-tert-butyl-2-(α-methylbenzyl) phenol (t-BAMBP) to separate rubidium from potassium in an alkaline solution obtained from the treatment of rubidium ore has been assessed. The effects of various factors on extraction, scrubbing, and stripping were investigated under batch test co...
A comprehensive study on the separation of cesium and rubidium from potassium with 4-tert-butyl-2-(α-methylbenzyl)-phenol (t-BAMBP) from a synthetic brine solution containing 20 mg/L Cs, 200 mg/L Rb and 5 g/L K was conducted. The effects of alkalinity, t-BAMBP concentration, temperature, A/O ra...
The use of boric acid as a modifier for the determination of trace amount of rubidium in high purity cesium chloride matrix by electrothermal atomic absorption is described. It was found that the negative influence of the chloride matrix could not be eliminated using stabilized temperature platf...
Here we present our recent studies on the color and spectral reflectance changes induced by ∼0.9 MeV proton irradiation of ammonium hydrosulfide, NH4SH, a compound predicted to be an important tropospheric cloud component of Jupiter and other giant planets. Ultraviolet-visible spectroscopy was ...
The removal of gaseous carbon bisulfide (CS2) in air stream via dielectric barrier discharge (DBD) combined with TiO2 coated attapulgite catalyst was investigated at atmospheric pressure and room temperature. The nano-TiO2/attapulgite photocatalytic composite was prepared by sol–gel method and ...
1.1. Encouraging results have been obtained in the treatment of twenty-five wound cases with sulfallantoin ointment.2.2. No local or systemic reactions to the drug have been observed.3.3. Ulcerations resulting from intensive irradiation are apparently not influenced by the drug.
The present paper describes the extractive quantification of zinc-dithiocarbamate fungicides, i.e. ziram (zinc bis-dimethyldithiocarbamate) and zineb (zinc ethylene-1,2-bis-dithiocarbamate) in fog-water samples. The method is based on the releasing of equivalent amount of zinc from the fungicide...
A simple, sensitive and rapid method for the determination of the pesticides ziram and zineb was described. This new method was based on the coupling of FIA methodology and direct chemiluminescent detection; this approach had not been used up to now with these pesticides. The additional use of a...
Zineb [ethylene bis(dithiocarbamate) zinc] is a widely employed foliar fungicide for agricultural and industrial applications. Allium cepa L. is a reliable model for the assessment of xenobiotic genotoxicity and cytotoxicity. We evaluated the effects of the zineb-containing commercial formulatio...
In this paper, a series of 2-amino-5-alkyl-1, 3, 4-thiadiazole zineb were prepared by reacting 2-amino-5-alkyl-1, 3, 4-thiadiazole, CS2 and ZnCl2. Its synthesis conditions was discussed. The optimal conditions were obtained as follows: reaction time 120 min, reaction temperature 30 °C, molar ra...
A novel and highly efficient dispersive liquid–liquid microextraction (DLLME) based on the use of gold nanoparticles (AuNPs) plasmon resonance was developed for the determination of trace amounts of zineb pesticide. The label-free AuNPs as colorimetric probes were synthesized in situ into organ...
In this study, gaseous CO2, solid ZnO and liquid H2O were converted to nanocrystalline (13 nm) hydrozincite, i.e. Zn5(CO3)2(OH)6 via fast one-step mechanochemical process at ambient temperature and pressure. The mechanically induced conversion of the three-phase mixture, studied by X-ray diffrac...
Out of many functionalities of zinc oxide, its magnetic properties are only sparsely explored. Herein we report on the evolution of ferromagnetism of undoped ZnO nanoparticles, depending on the zinc source used for the synthesis. We started from mechanochemical synthesis of phase pure nanocrysta...
3D hierarchical mesoporous structure, micron-sized flowers composed of nickel carbonate hydroxide hydrate (Ni2(CO3)(OH)2·H2O) (NCH) nanopetals were successfully synthesized by single-step facile hydrothermal method. The processing parameters appears to play vital role in governing nano-petaled ...
Transition metal sulfide is considered as a kind of promising noble metal-free material for hydrogen evolution reaction (HER). However, most of conventional sulfurization methods require high temperature and/or long reaction time. Herein, a sulfurization strategy at room temperature (25 °C) by ...
Transition metal compounds containing nickel and copper have been investigated as electrode materials for energy storage. (Ni,Cu)(OH)2CO3 and α-Ni(OH)2 with different Ni/Cu ratios are synthesized by a simple hydrothermal method. All the samples show the similar dandelion-like morphology. It is ...
Structural disorder and relocation of implanted Mn in semi-insulating 4H–SiC has been studied. Subsequent heat treatment of Mn implanted samples has been performed in the temperature range 1400–2000 °C. The depth distribution of manganese is recorded by secondary ion mass spectrometry. Ruther...
FeMnAlC alloys with high C and Al contents exhibit hardness that could be enhanced drastically with the precipitation of nano κ-carbides through aging and thermomechanical treatments. Nonetheless, information has been scarcely reported on the effect of both treatments on the abrasive wear respo...
The stability, elasticity, hardness and electronic properties of Mn–C binary compounds are investigated by first principles calculations. The lattice parameters, cohesive energy and formation enthalpy of these compounds are calculated and discussed. Furthermore, the elastic constants are calcul...
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