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In this work, a single-layer TiO2–ZrO2 thin film is deposited on the AISI 316L austenitic stainless steel by the sol–gel process and the dip coating method to improve its corrosion resistance properties. For the sol preparation, titanium isopropoxide and zirconium butoxide are used as the precursors, yttrium acetate hydrate is used for the ZrO2 stabilization, i-propanol as the solvent, nitric acid as the catalyst, acetylacetone as the chelating agent, and the distilled water for the hydrolysis. The deposited films are annealed at 400 °C or 600 °C. Morphology and phase composition of the sol–gel TiO2–ZrO2 films and powders are analyzed by scanning electron microscopy (SEM) equipped with EDX detector and X-ray diffraction (XRD), respectively. The thickness of the sol–gel TiO2–ZrO2 films deposited on the stainless steel is determined by glow discharge optical emission spectrometry (GD-OES). The corrosion behavior of the stainless steel, coated by amorphous films, is evaluated in 3 wt% NaCl and 0.5 mol dm−3 HCl by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. It is found that the sol–gel TiO2–ZrO2 films with the amorphous structure, deposited by the sol–gel process, and calcined at 400 °C significantly enhance the corrosion properties of AISI 316L in both chloride media.
Lidija Ćurković; Helena Otmačić Ćurković; Irena Žmak; Mihone Kerolli Mustafa; Ivana Gabelica. Corrosion Behavior of Amorphous Sol–Gel TiO2–ZrO2 Nano Thickness Film on Stainless Steel. Coatings 2021, 11, 988 .
AMA StyleLidija Ćurković, Helena Otmačić Ćurković, Irena Žmak, Mihone Kerolli Mustafa, Ivana Gabelica. Corrosion Behavior of Amorphous Sol–Gel TiO2–ZrO2 Nano Thickness Film on Stainless Steel. Coatings. 2021; 11 (8):988.
Chicago/Turabian StyleLidija Ćurković; Helena Otmačić Ćurković; Irena Žmak; Mihone Kerolli Mustafa; Ivana Gabelica. 2021. "Corrosion Behavior of Amorphous Sol–Gel TiO2–ZrO2 Nano Thickness Film on Stainless Steel." Coatings 11, no. 8: 988.
In this work, alumina (Al2O3) ceramics were prepared using an environmentally friendly slip casting method. To this end, highly concentrated (70 wt.%) aqueous suspensions of alumina (Al2O3) were prepared with different amounts of the ammonium salt of a polycarboxylic acid, Dolapix CE 64, as an electrosteric dispersant. The stability of highly concentrated Al2O3 aqueous suspensions was monitored by viscosity measurements. Green bodies (ceramics before sintering) were obtained by pouring the stable Al2O3 aqueous suspensions into dry porous plaster molds. The obtained Al2O3 ceramic green bodies were sintered in the electric furnace. Analysis of the effect of three sintering parameters (sintering temperature, heating rate and holding time) on the density of alumina ceramics was performed using the response surface methodology (RSM), based on experimental data obtained according to Box–Behnken experimental design, using the software Design-Expert. From the statistical analysis, linear and nonlinear models with added first-order interaction were developed for prediction and optimization of density-dependent variables: sintering temperature, heating rate and holding time.
Darko Landek; Lidija Ćurković; Ivana Gabelica; Mihone Kerolli Mustafa; Irena Žmak. Optimization of Sintering Process of Alumina Ceramics Using Response Surface Methodology. Sustainability 2021, 13, 6739 .
AMA StyleDarko Landek, Lidija Ćurković, Ivana Gabelica, Mihone Kerolli Mustafa, Irena Žmak. Optimization of Sintering Process of Alumina Ceramics Using Response Surface Methodology. Sustainability. 2021; 13 (12):6739.
Chicago/Turabian StyleDarko Landek; Lidija Ćurković; Ivana Gabelica; Mihone Kerolli Mustafa; Irena Žmak. 2021. "Optimization of Sintering Process of Alumina Ceramics Using Response Surface Methodology." Sustainability 13, no. 12: 6739.
This study assesses the total concentration of eight toxic metals As, Cd, Co, Cr, Cu, Ni, Pb, and Zn in the soil and plant of Salix purpurea samples collected from Mitrovica mining region in Kosovo. The concentration, accumulation and transfer from soil to roots, stem and leaves were assessed using bioconcentration factor (BCF) and translocation factor (TF). The total metal content in the soil and plant was high following the trend of Zn > Pb > Ni > Cd > Cu > As > Co > Cr. The relevance between soil and accumulation of heavy metals in Salix purpurea was assessed using correlation matrix and principal components analysis. The results indicate that Salix Purpurea can be used in phytoremediation and stabilization of soil contaminated by heavy metals.
Flora Zabergja-Ferati; Mihone Kerolli Mustafa; Flamur Abazaj. Heavy Metal Contamination and Accumulation in Soil and Plant from Mining Area of Mitrovica, Kosovo. Bulletin of Environmental Contamination and Toxicology 2021, 107, 537 -543.
AMA StyleFlora Zabergja-Ferati, Mihone Kerolli Mustafa, Flamur Abazaj. Heavy Metal Contamination and Accumulation in Soil and Plant from Mining Area of Mitrovica, Kosovo. Bulletin of Environmental Contamination and Toxicology. 2021; 107 (3):537-543.
Chicago/Turabian StyleFlora Zabergja-Ferati; Mihone Kerolli Mustafa; Flamur Abazaj. 2021. "Heavy Metal Contamination and Accumulation in Soil and Plant from Mining Area of Mitrovica, Kosovo." Bulletin of Environmental Contamination and Toxicology 107, no. 3: 537-543.
The abundances of selected elements in different environmental compartments, namely soil, honey, and bee pollen, was determined in this study. For that purpose, sixteen soil and honey samples, and nine pollen samples were taken in the region of Mitrovica, Kosovo. The concentration of elements was measured by ICP-AES and ICP-MS. Pollution level concentrations of Pb, Zn, As, and Cd were observed in soil. The level of soil pollution was estimated by calculating pollution indices. Pb was also observed at high concentrations in honey, as was Cd and Pb in pollen. Pearson’s correlation coefficients revealed mostly weak and moderate correlations of the concentrations of the eight selected elements among the soil, honey, and pollen samples. Several groups of elements with geogenic and anthropogenic origin were identified by hierarchical cluster analysis. The concentrations of selected heavy metals for soil and honey were compared to those in neighboring countries, and those for pollen with samples from Turkey, Serbia, and Jordan.
Granit Kastrati; Musaj Paçarizi; Flamur Sopaj; Krste Tašev; Trajče Stafilov; Mihone Mustafa. Investigation of Concentration and Distribution of Elements in Three Environmental Compartments in the Region of Mitrovica, Kosovo: Soil, Honey and Bee Pollen. International Journal of Environmental Research and Public Health 2021, 18, 2269 .
AMA StyleGranit Kastrati, Musaj Paçarizi, Flamur Sopaj, Krste Tašev, Trajče Stafilov, Mihone Mustafa. Investigation of Concentration and Distribution of Elements in Three Environmental Compartments in the Region of Mitrovica, Kosovo: Soil, Honey and Bee Pollen. International Journal of Environmental Research and Public Health. 2021; 18 (5):2269.
Chicago/Turabian StyleGranit Kastrati; Musaj Paçarizi; Flamur Sopaj; Krste Tašev; Trajče Stafilov; Mihone Mustafa. 2021. "Investigation of Concentration and Distribution of Elements in Three Environmental Compartments in the Region of Mitrovica, Kosovo: Soil, Honey and Bee Pollen." International Journal of Environmental Research and Public Health 18, no. 5: 2269.