Synthesis of sulfur nanopartical (SNPs) from mixture theosulphate sodium with Alhagi extra plant. When the change of the color after mixture theosulphate sodium with Alhagi extra plant from yellow to brown indicated the synthesis sulfur nanopartical . Atomic forces microscope (AFM) was used to study the surface topology of the formulated sulfur nanopartical was size 82.39nm. The sulfur nanopartical was used protection aluminum from corrosion in acid media, the study corrosion in different temperature,the inhibition efficiency (%IE) of sulfur nanopartical was high in low temperature, therefore the sulfur nanopartical was active inhibition for aluminum in low temperature in acid media. The values of the thermodynamic parameters at different temperatures for Aluminum in presence sulfur nanopartical are higher than in the absence sulfur nanopartical, also the negative value of ΔH* for corrosion processes in absence and presence sulfur nanopartical reveal the exothermic nature of Aluminum.
In this study, the adsorption of Zn (NO3)2 is carried out by using surfaces of malvaparviflora. The validity of the adsorption is evaluated by using atomic absorption Spectrophotometry through determination the amount of adsorbed Zn (NO3)2. Various parameters such as PH, adsorbent weight and contact time are studied in terms of their effect on the reaction progress. Furthermore, Lagergren’s equation is used to determine adsorption kinetics. It is observed that high removal of Zn (NO3)2 is obtained at PH=2. High removal of Zn (NO3)2 is at the time equivalent of 60 min and reaches equilibrium,where 0.25gm is the best weight of adsorbant . For kinetics the reaction onto malvaparviflora follows pseudo first order Lagergren’s equation.
Schiff base (methyl 6-(2-(4-hydroxyphenyl) -2-(1-phenyl ethyl ideneamino) acetamido) -3, 3dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0] heptane-2-carboxylate)Co(II), Ni(II), Cu (II), Zn (II), and Hg(II)] ions were employed to make certain complexes. Metal analysis M percent, elemental chemical analysis (C.H.N.S), and other standard physico-chemical methods were used. Magnetic susceptibility, conductometric measurements, FT-IR and UV-visible Spectra were used to identified. Theoretical treatment of the generated complexes in the gas phase was performed using the (hyperchem-8.07) program for molecular mechanics and semi-empirical computations. The (PM3) approach was used to determine the heat of formation (ΔH˚f), binding energy (ΔEb), and total energy (ET) for ligands and metal complexes at 298 ᴼK. To explore the reactive sites of the compounds, the electrostatic potential of the ligand (L) was computed. PM3 was used to calculate the vibrational frequencies of the ligand (L) and its metal complexes, which were then compared to experimental data. The antibacterial activity of (L) and its metal complexes against three harmful microorganisms were examined: Staphylococcus aureus (gram positive), Echerchia coli (gram negative), and Candida albicans.
The main parameters and methods influencing the removal of Gentian Violet (GV) dye from aqueous media were investigated using a stachy plant in this study. The surface of the stachy plant was determined using FTIR spectra. Adsorption is influenced by the adsorbent's characteristic groups. The research took into account the usual conditions for GV dye adsorption by the stachy plant, such as the impact of contact time. Mass dosage , after 0.3 g the amount of adsorbed dye declines. Study pH and ionic strength, the results obtained showed that at pH 3 the largest adsorption of (GV) was seen, while at pH 9, the lowest adsorption was observed at 298 K, the adsorption kinetics and equilibrium constants were achieved, and the equilibrium data was fitted using the Langmuir, Freundlich, and Temkin models. The pseudo-first-order and pseudo-second-order kinetic models were used to investigate the adsorption process of gentian violet. The adsorption kinetics was discovered to be governed by a pseudo-second-order kinetic model with a determination coefficient (R2) of 0. 0.9943. Study the theoretical electrostatics of Gentian Violet dye was measured and plotted as a 2D and 3D contour and the program hyperchem-8.07 was used for semi-empirical and molecular mechanic calculations in the gas phase to estimate the total energy.
Inhibition performance of sulfur nanoparticles mixed with meloxicam drugs as corrosion inhibitor by potentiostat technique with metal in 3.5% NaCl Sodium chloride solution based on different temperature. The sulfur nanoparticles were prepared by using Alhagi extra plant with thiosulphate sodium. The surface morphology was studied using the Atomic Force Microscope (AFM) with a size of 100.32 nm. The inhibition efficiency increased with increasing temperature, around 81.94% in 50 o C. With the absence of an inhibitor, the polarization resistance decreased with increasing temperature, Although the resistance to polarization increased in the presence of the inhibitor. Compared to the absence of the inhibitor, the activation energy (Ea) and activation enthalpy Δ H * values for carbon steel increased in the presence of the inhibitor. The values of ΔG were positive, this indicated the non-spontaneousness and increase in the presence of inhibitor.
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