Temperature and time dependence on ZnS microstructure and phases obtained through hydrothermal decomposition of diethyldithiocarbamate complexes

Abstract

Zinc sulphide was obtained through hydrothermal decomposition of [Zn(S2CNEt2)] under different experimental conditions such as temperatures and reaction times. Hydrothermal reactions were carried out in a stainless steel autoclave at 160, 180 and 200 °C for 3, 6 and 24 hours. The obtained products were characterized using X-ray diffraction, scanning and high resolution transmission electron microscopies. Particle size and microstrain were determined by Rietveld refinement of experimental X-ray diffraction patterns. The obtained crystal size values were in the range of 6.1 to 30 nm and as the temperature and reaction times increase the particle size also increases. Band gap values are in the range of 3.34 to 3.60 eV and are highly dependent on the crystal microstrain. The catalyst activities were studied through the degradation of methylene blue dye solutions under ultraviolet radiation.

Zinc blende versus wurtzite ZnS nanoparticles: control of the phase and optical properties by tetrabutylammonium hydroxide

“…These phases corresponding to the different polymorphs of ZnS can be clearly identified in this case, it was noted that the lattice parameters and unit cell volumes obtained for both zinc blende and wurtzite of the ZnS structures are very close to those published in the literature. 58,59 However, some variations in the atomic positions related to sulfur atoms were observed while zinc atoms have fixed atomic positions. Fig.…”

Influence of synthesis parameters on the optical and photocatalytic properties of solvo/hydrothermal CuS and ZnS nanoparticles

“…[ 22 ] Among them, one of the most popular techniques is the solvo/hydrothermal route, which presents many advantages such as low production cost, echo‐friendliness, easy of process, and cleanliness. [ 15,16,23 ] In this procedure, the capping agent plays an important role in controlling the stability, shape, and size of the nanoparticles, as well as avoiding their agglomeration. [ 24–26 ] There have recently been several reports on the use of various thio Schiff base ligands as sulfur sources, as well as the capping and reducing agents for synthesis of sulfide nanomaterials, [ 27,28 ] which can be attached directly to metal ions and avoid nanoparticle agglomeration.…”

A DFT Study of Structural and Electronic Properties of ZnS Polymorphs and its Pressure‐Induced Phase Transitions

“…Several routes are described in the literature to obtain ZnS with different morphologies and a considerable effort has been devoted to characterized theses materials by means of different techniques such as such X‐ray diffraction (XRD), extended X‐ray absorption fine structure, high‐resolution transmission electron microscopy, Fourier transform infrared, and Raman spectroscopy, X‐ray photoelectron spectroscopy (XPS) and photoluminescence measurements …”