Formation of ZnS nano- and microparticles from thiourea solutions

Optical and electrical properties of ZnSe films grown by hydrochemical deposition

“…Spectrum 1 in Fig. 3 shows an absorption band in the range 3000-3600 cm -1 (centered at 3400 cm -1 ) and a band at 1607 cm -1 , which arise, respectively, from stretching and bending modes of water molecules [13,14], due to the presence of potassium bromide. There are also absorption bands at 1448 and 1355 cm -1 , due to vibrations of the ion, and an absorption band at 1140 cm -1 , arising from vibrations of the ion [13].…”

“…Anion composition is known to have a significant effect on the particle formation process [13,14], which offers the possibility of controlling the morpho logical characteristics of particles. As an additional component in ZnSe film growth, one can use sodium sulfite, which will also contribute to selenation.…”

Sorption extraction of 137Cs and 90Sr radionuclides from aqueous solutions by MnO(OH) nanoparticles

“…For this material we performed an X-ray photography analysis by powder diffractometer Siemens D500 in copper radiation with graphite monochromator at secondary beam. IR spectra of MnO(OH) are measured in tablets KBr by infrared Fourier-spectrometer Spectrum One (Perkin Elmer) (Sofronov et al, 2013b). The investigation of the morphology of the surface of the obtained powder was performed by scanning microscope (SEM) JSM-6390LV (Sofronov et al, 2013b).…”

“…IR spectra of MnO(OH) are measured in tablets KBr by infrared Fourier-spectrometer Spectrum One (Perkin Elmer) (Sofronov et al, 2013b). The investigation of the morphology of the surface of the obtained powder was performed by scanning microscope (SEM) JSM-6390LV (Sofronov et al, 2013b). The sorption ability of MnO(OH) to 90 Sr and 137 Cs radionuclides was studied by the limited volume method in the pH range from 2 to 9 at temperature of 293.15 K. Radionuclides of 90 Sr (1:8 Á 10 7 Bq/dm 3 ), and 137 Cs (8:6 Á 10 7 Bq/dm 3 ) were used without carriers in the experiments.…”

Effect of Mn doping on structural, optical and photocatalytic behaviors of hydrothermal Zn1−xMnxS nanocrystals

“…Driven by the minimization of interfacial energy, small ZnS Ncs may aggregate around the gas-liquid interface between CH 2 N 2 and the solvent, and finally ZnS microspheres are formed. Furthermore, the excess of thiourea to zinc chloride favors agglomeration of ZnS Ncs in spherical shape a [20,21]. SEM images revealed (Fig.…”