Sharif Digital Repository

Effect of electrical parameters on morphology, chemical composition, and photoactivity of the nano-porous titania layers synthesized by pulse-microarc oxidation

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Duty cycle. / Frequency. / Microarc oxidation. / Photocatalytic. / Pulse current. / Titania. / Applied voltages. / Atomic force microscopes. / Chemical compositions. / Current frequency. / Decomposition rate. / Duty cycles. / Electrical parameter. / Methylene blue solution. / Nano-porous. / Photo-catalytic. / Photoactivity. / Photocatalytic performance. / Porous structures. / Pulse currents. / Rutile phasis. / Scanning electron microscopes. / Surface chemical composition. / TiO. / Ultraviolet irradiations. / UV irradiation. / Irradiation. / Microscopes. / Morphology. / Oxidation. / Oxide minerals. / Scanning electron microscopy. / Surface topography. / Titanium dioxide. / X ray diffraction. / X ray photoelectron spectroscopy. / Surface morphology.

Mapping the spatiotemporal variability of salinity in the hypersaline Lake Urmia using Sentinel-2 and Landsat-8 imagery

Author

Bayati, M.

Publisher

Elsevier B.V,

Pub. Year

2021

Subjects

Causeways. / Dissolution. / Evaporation. / Flow of water. / Fuzzy inference. / Fuzzy neural networks. / Lakes. / Learning algorithms. / Linear regression. / Machine learning. / Precipitation (chemical) / Satellite imagery. / Water quality. / Wind. / Adaptive network based fuzzy inference system. / Model calibration and validation. / Multiple linear regression models. / Spatio-temporal dynamics. / Spatio-temporal resolution. / Spatiotemporal distributions. / Spatiotemporal variability. / Water surface reflectance. / Saline water. / Artificial neural network. / Concentration (composition) / In situ measurement. / Lacustrine environment. / Landsat. / Mapping method. / Precipitation (chemistry) / Salinity. / Satellite data. / Sentinel. / Spatiotemporal analysis. / Iran. / Lake Urmia.

Micro arc oxidation of nano-crystalline Ag-doped TiO2 semiconductors

Author

Bayati, M. R.

Pub. Year

2011

Subjects

Absorption edges. / Anatase phase. / Crystalline size. / Diffraction angle. / Doped-TiO. / Doping. / Microarc. / Microarc oxidation. / Nano-structured layer. / Nanocrystallines. / Red shift. / Rutile phasis. / TiO. / Titania. / UV-Vis spectrophotometers. / XPS. / XRD. / Crystalline materials. / Oxidation. / Oxide minerals. / Semiconductor doping. / Titanium. / Titanium dioxide. / Silver.

Visible photodecomposition of methylene blue over micro arc oxidized WO3-loaded TiO2 nano-porous layers

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Methelyne blue. / Absorption edges. / Applied voltages. / Band gap energy. / Chemical compositions. / Composite layer. / Data analysis. / Decomposition rate. / Electrolyte concentration. / Energy dispersive X ray spectroscopy. / Growth mechanisms. / Matrix. / Microarc. / Microarc oxidation. / Nano-porous. / Phosphate salts. / Photo-decomposition. / Photo-irradiation. / Photocatalytic activities. / Porous structures. / Rough surfaces. / SEM. / Sodium tungstate. / TiO. / Tungsten oxide. / UV-Vis spectrophotometers. / Atomic force microscopy. / Data reduction. / Electrolytes. / Oxide minerals. / Photocatalysis. / Porous materials. / Scanning electron microscopy. / Surface roughness. / Surface structure. / Titanium. / Titanium dioxide. / Tungsten. / Tungsten compounds. / X ray diffraction. / X ray photoelectron spectroscopy. / X ray spectroscopy. / X rays. / Titanium oxides.

On the photocatalytic activity of the sulfur doped titania nano-porous films derived via micro-arc oxidation

Author

Bayati, M. R.

Pub. Year

2010

Subjects

TiO2. / Absorption edges. / AFM. / Applied voltages. / Band gap energy. / Degradation rate. / Doped layers. / Doped titania. / Doped-TiO. / Doping. / Electrolyte compositions. / Electrolyte concentration. / Methylene Blue. / Microarc oxidation. / Nano-porous films. / Photoactivity. / Photocatalytic activities. / Photocatalytic performance. / Physical and chemical properties. / Rutile phasis. / SEM. / Sulfur concentrations. / TiO. / Titania. / UV irradiation. / UV- and. / UV-Vis spectrophotometers. / Visible irradiation. / XPS. / XRD. / Chemical properties. / Degradation. / Electrolytes. / Irradiation. / Optical properties. / Organic polymers. / Oxidation. / Oxide minerals. / Photocatalysis. / Sulfur. / Titanium dioxide. / X ray photoelectron spectroscopy. / Doping (additives)

Synthesis of narrow band gap (V2O5)x-(TiO2)1-x nano-structured layers via micro arc oxidation

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Vanadium oxides. / Ceramics. / Photo-catalysis. / Titanium oxide. / Vanadium oxide. / Absorption edges. / Applied voltages. / Atomic force microscopes. / Band gap energy. / Chemical compositions. / Composite layer. / Decomposition rate. / Methylene blue. / Methylene blue solution. / Micro arc oxidation. / Nano-structured layer. / Narrow band gap. / Photo-catalytic. / Scanning electron microscopes. / Sheet-like. / Sheet-like structure. / TiO. / Titania layers. / UV-vis spectrophotometers. / Micro arc oxidation. / Vanadium pentoxide. / Visible irradiation. / Visible wavelengths. / Catalysis. / Cavity resonators. / Ceramic materials. / Energy gap. / Irradiation. / Microscopes. / Morphology. / Optical properties. / Oxidation. / Oxide minerals. / Scanning electron microscopy. / Surface topography. / Synthesis (chemical) / Titanium. / Titanium dioxide. / Titanium oxides. / Vanadium. / Vanadium alloys. / Vanadium compounds. / X ray diffraction. / X ray photoelectron spectroscopy.

Photo-degradation of methelyne blue over V2O5- TiO2 nano-porous layers synthesized by micro arc oxidation

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Vanadium oxide. / Applied voltages. / Band gap energy. / Methylene blue solution. / Microarc oxidation. / Nano-porous. / Porous layers. / TiO. / Titania layers. / UV irradiation. / Vanadia-titania. / Vanadium oxide. / Vanadium oxides. / Vanadium pentoxide. / Catalysis. / Cavity resonators. / Oxidation. / Oxide minerals. / Rate constants. / Titanium. / Titanium dioxide. / Vanadium. / Vanadium alloys. / Vanadium compounds. / Titanium oxides.

The effect of growth parameters on photo-catalytic performance of the MAO-synthesized TiO2 nano-porous layers

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Nano structures. / Porous materials. / Anode surfaces. / Applied voltages. / Band gap energy. / Breakdown voltage. / Chemical compositions. / Chemical synthesis. / Concentration of. / Critical voltages. / Decomposition rate. / Electrolyte concentration. / Energy dispersive. / Gas layers. / Growth parameters. / Methylene Blue. / Methylene blue solution. / Microarc oxidation. / Nano-porous. / Photo-catalytic. / Photocatalytic activities. / Rutile phasis. / Scanning electron microscopes. / Surface pores. / Synthesis parameters. / TiO. / UV irradiation. / UV-Vis spectrophotometers. / Catalyst activity. / Cavity resonators. / Concentration (process) / Electrolysis. / Electrolytes. / Energy gap. / Nanostructures. / Optical properties. / Oxidation. / Oxide minerals. / Porous materials. / Scanning electron microscopy. / Spectrophotometry. / Surface structure. / Titanium. / Titanium dioxide. / X ray diffraction. / X ray photoelectron spectroscopy. / Synthesis (chemical)

How photocatalytic activity of the MAO-grown TiO2 nano/micro-porous films is influenced by growth parameters?

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Micro-arc oxidation. / AFM. / Applied voltages. / Catalytic applications. / Chemical compositions. / Concentration of. / Electrolyte concentration. / Growth parameters. / Methylene blue solution. / Oxide materials. / Photocatalytic activities. / Photocatalytic performance. / Porous film. / Porous layers. / Process time. / Rutile phasis. / SEM. / TiO. / UV irradiation. / Cavity resonators. / Electrolytes. / Oxide minerals. / Photocatalysis. / Surface roughness. / Surface structure. / Titanium. / Titanium dioxide. / Titanium oxides. / Catalytic oxidation.

In situ growth of vanadia-titania nano/micro-porous layers with enhanced photocatalytic performance by micro-arc oxidation

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Methylene blue. / Micro-arc oxidation. / Porous. / Titanium oxide. / Vanadium oxide. / Applied voltages. / Atomic force microscopes. / Band gap energy. / Chemical compositions. / Composite layer. / Efficient method. / Electrolyte concentration. / In-situ growth. / Photocatalytic performance. / Photocatalytic reactions. / Porous layers. / Porous titanium. / Scanning electron microscopes. / TiO. / UV-Vis spectrophotometers. / Vanadia-titania. / Vanadium oxides. / Vanadium pentoxide. / Visible irradiation. / Cavity resonators. / Electrolytes. / Microscopes. / Optical properties. / Oxidation. / Oxide minerals. / Photodegradation. / Rate constants. / Scanning electron microscopy. / Surface morphology. / Surface roughness. / Synthesis (chemical) / Titanium. / Titanium dioxide. / Titanium oxides. / Vanadium. / Vanadium alloys. / Vanadium compounds. / X ray diffraction. / X ray photoelectron spectroscopy.

In situ derivation of sulfur activated TiO2 nano porous layers through pulse-micro arc oxidation technology

Author

Bayati, M. R.

Pub. Year

2011

Subjects

A. Oxides. / D. Catalytic properties. / A. Nanostructures. / A. Oxides. / A. Thin films. / Catalytic properties. / D. Surface properties. / Epitaxial films. / Irradiation. / Oxidation. / Oxide minerals. / Photocatalysis. / Rate constants. / Sulfur. / Surface properties. / Synthesis (chemical) / Titanium dioxide.

A strategy for single-step elaboration of V2O 5-grafted TiO2 nanostructured photocatalysts with evenly distributed pores

Author

Bayati, M. R.

Pub. Year

2011

Subjects

Catalytic properties. / Micro arc oxidation. / Oxide. / Surfaces. / Catalytic applications. / Duty cycles. / Electric variables. / Methylene Blue. / Micro arc oxidation. / Model materials. / Nano-structured. / Photocatalytic efficiency. / Photocatalytic performance. / Porous layers. / Porous structures. / Pulse currents. / Rough surfaces. / SEM. / Single-step. / Surface area. / TiO. / Vanadium oxides. / XPS. / XRD. / Catalytic oxidation. / Oxide minerals. / Surfaces. / Titanium. / Titanium dioxide. / Vanadium. / Vanadium compounds. / Surface morphology.

(WO3)x-(TiO2)1-x nano-structured porous catalysts grown by micro-arc oxidation method: Characterization and formation mechanism

Author

Bayati, M. R.

Pub. Year

2010

Subjects

Ceramics. / Films. / Methylene blue. / Micro-arc oxidation. / Photocatalysis. / Porous. / AFM. / Applied voltages. / Band gap energy. / Chemical compositions. / Degradation rate. / Degradation rate constants. / Formation mechanism. / matrix. / Microarc oxidation. / Model materials. / Nano-structured. / Photocatalytic efficiency. / Porous catalysts. / SEM. / TiO. / Tungsten oxide. / UV-Vis spectrophotometers. / Visible irradiation. / XPS. / XRD. / Ceramic materials. / Degradation. / Optical properties. / Oxidation. / Surface roughness. / Titanium. / Titanium oxides. / Tungsten. / Rate constants.

Treatment of oilfield produced water by dissolved air precipitation/solvent sublation

Author

Bayati, F.

Pub. Year

2011

Subjects

Dissolved air precipitation. / Produced water. / Dissolved air. / Solvent sublation. / TOG. / Benzene. / Colloid chemistry. / Dissolution. / Mathematical models. / Oil fields. / Pressure effects. / Salinity measurement. / Separation. / Toluene. / Water treatment. / BTEX. / Bubble. / Oil field. / precipitation (chemistry) / Pressure effect. / Salinity. / Solvent.

A heuristic method for finding the optimal number of clusters with application In medical data

Author

Bayati, H.

Publisher

IEEE Computer Society,

Pub. Year

2008

Subjects

Fuzzy clustering. / Fuzzy inference. / Fuzzy systems. / K-means clustering. / Simulated annealing. / Cluster validity indices. / Davies-Bouldin index. / Fuzzy C mean. / Growing neural gas. / K-means. / Medical data. / Medical data sets. / Optimal number. / Heuristic methods. / Algorithm. / Artificial intelligence. / Automated pattern recognition. / Biological model. / Cluster analysis. / Computer simulation. / Fuzzy logic. / Methodology. / Statistical analysis. / Statistical model. / Theoretical model. / Algorithms. / Artificial Intelligence. / Cluster Analysis. / Computer Simulation. / Data Interpretation, Statistical. / Gene Expression Profiling. / Medical Informatics. / Models, Genetic. / Models, Statistical. / Models, Theoretical. / Pattern Recognition, Automated.

On the growth and photocatalytic activity of the vertically aligned ZnO nanorods grafted by CdS shells

Author

Zirak, M.

Pub. Year

2013

Subjects

Core-shell. / Nanorod. / Photocatalytic activity. / Maximum reaction rate. / Multi-step procedures. / Photocatalytic activities. / Photocatalytic efficiency. / Photocatalytic property. / UV-vis spectrophotometry. / Visible irradiation. / Aromatic compounds. / Cadmium sulfide. / Electronic structure. / Irradiation. / Nanorods. / Optical properties. / Photocatalysis. / Rate constants. / Shells (structures) / Sol-gel process. / Sol-gels. / Zinc oxide.

Micro-arc oxidized S-TiO2 nanoporous layers: Cationic or anionic doping?

Author

Bayati, M.R.

Pub. Year

2010

Subjects

Porosity. / TiO2. / Band gap energy. / Crystalline lattice. / Doping. / Maximum values. / Microarc. / Microarc oxidation. / Nano-materials. / Nanoporous layers. / Porous morphology. / S-doped TiO. / SEM. / Sulfur concentrations. / TiO. / Titania. / Titanium substrates. / UV-Vis spectrophotometers. / XPS. / XRD analysis. / Dyes. / Nanostructured materials. / Oxidation. / Sulfur. / Titanium. / Titanium dioxide. / Doping (additives)