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Scopus
ISSN 2981-2437 · Semnan University · 838 artikel di indeks
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Synthesis and Application of Rubidium and Cerium-Enhanced Nickel Catalysts Based on Activated Carbon in Catalytic Pyrolysis of Vacuum Tower Bottom Residue for Production of Hydrogen-Rich Gas
In this research, nickel catalysts with cerium and rubidium promoters supported on activated carbon derived from almond shell pyrolysis were synthesized to produce hydrogen from vacuum distillation tower bottom residue of Tehran refinery. The catalysts were comprehensively characterized using…
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Synthesis and investigation of properties and applications of 2D copper oxide (CuO) nanosheets
In the present study, copper oxide (CuO) nanosheets were synthesized by a bottom-up (hydrothermal) method. The structural properties, morphology and particle size of the synthesized nanosheets were investigated using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and…
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Synthesis of Montelukast using dichloroimidazolidinedione (DCID)
In this paper, a modified and scalable method for the preparation of montelukast (Singulair, a famous drug demonstrated for the chronic and prophylaxis therapy of asthma) is presented based on a new and useful method for performing substitution reactions. The process of preparing montelukast by…
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Optimized Synthesis of Zeolitic Imidazolate Framework-67 and its Application as a Peroxidase-Mimicking Nanozyme for Colorimetric Detection of Hydrogen Peroxide
In recent years, nanostructures with enzyme-like activity, particularly peroxidase mimics, have been regarded as promising alternatives to natural enzymes in a variety of applications. In this study, a cobalt-based zeolitic imidazolate framework-67 ( ZIF - 67 ) was synthesized with high efficiency…
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The inhibitory effect of different surfactants on the corrosion of A335 alloy steel in sodium hydroxide solution
In this study, the corrosion inhibition performance of five different surfactants, including three cationic surfactants: dodecyl trimethyl ammonium bromide (DOTAB), cetyl trimethyl ammonium bromide (CTAB), cetyl trimethyl ammonium chloride (CTAC) a nonionic surfactant: Triton X-100, and an anionic…
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Synthesis, Characterization and Electrophoretic Deposition of Fe-doped TiO2 Nanoparticles and Investigation of Its Application in the Methylene Blue Degradation
The development of efficient photocatalysts for environmental remediation, particularly for the degradation of organic pollutants, has gained significant attention in recent years. This study focuses on the synthesis, characterization, and electrophoretic deposition (EPD) of Fe-doped TiO2…
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Synthesis and Characterization of Palladium Stabilized Silicon Carbide as a Heterogeneous Photocatalyst in Heck Coupling Reaction under Visible Light Irradiation
The Heck reaction is recognized as an effective method for the synthesis of high-value organic compounds, and the use of photocatalysts, particularly palladium nanoparticles, can significantly enhance the yield and selectivity of these reactions. In this study, the heterogeneous catalyst…
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Synthesis and investigation of CdS/ZSM-5 photocatalytic activity for removal of xylene vapors from air
In this research work, CdS and CdS/ZSM-5 were synthesized by hydrothermal method and their photocatalytic activity was investigated for removing xylene vapors from air in two states: powdered and immobilized on a glass substrate. The CdS in the immobilized state removed a higher percentage of…
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Performance of Electric Fields for Enhanced Oil Recovery
With the increase of crude oil consumption and the decrease in extractable resources, the development of new methods to enhanced oil recovery has become of particular concern. One advanced and exploited method in recent years is employing external fields, especially electric fields, to reduce the…
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Electrochemical Deposition of Zn-Cu Alloy on St37 in Choline Chloride-Ethylene Glycol Electrolyte
Aqueous electrolytes used in electrochemical deposition processes of zinc and its alloys have inherent drawbacks, such as corrosion of metal substrates, undesirable hydrogen gas evolution at high currents, and limited operating voltage. In this research, the electrochemical deposition of Zn-Cu…
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Thermodynamic Study of Adsorption Process of Direct Red 16 Pollutant by LECA/Zirconia Adsorbent
This study investigates the effect of temperature and consequently the thermodynamic study of the adsorption process of Direct Red 16 dye as a target pollutant in an aqueous environment using fixed LECA/Zirconia adsorbent substrates. For this purpose, a mineral compound called LECA (as a stable…
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Comparison of Box–Behnken, Central Composite, and D-Optimal Designs for Optimization of Phthalocyanine Dye Removal Using Magnetic Nanoparticles Iron Oxide Modified by Polyaspartic Acid
In this study, the performance of the Box–Behnken, central composite and D-optimal designs (BBD, CCD or DOD, respectively) were compared for the use in modeling and optimizing the new study of the removal of phthalocyanine dye using magnetic nanoparticles iron oxide modified by ployaspartic acid…
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Synthesis and Characterization of Bi- and Tri-Functional Cycloaliphatic Epoxy Resins by Introducing the Applied Epoxidation Method
Cycloaliphatic epoxy resins, due to the presence of saturated six-carbon rings with a flexible space shape in the main structure, have the ability to be used in the manufacture of high-performance composite parts and have received the attention of composite industries. Researchers have succeeded in…
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Comparative Evaluation of the Extractive Desulfurization of Liquid Fuel Using Deep Eutectic Solvents Containing Triethanolamine with Dual Role Hydrogen Bond Donor-Hydrogen Bond Acceptor
Sulfur in fuel is one of the main sources of pollutants that cause environmental problems. In addition, the presence of sulfur impurities leads to corrosion problems in refinery units and deactivation of the catalyst used in refineries; therefore, desulfurization of fuel is very necessary. The use…
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Development and Step-by-Step Optimization of the HPLC Method with Dilute-and-Shoot Sample Preparation Technique for Determination of Benidipine Hydrochloride in Pharmaceutical and Biological Samples
This research employed a method using high-performance liquid chromatography with a visible-ultraviolet detector (HPLC-UV-Vis) to measure Benidipine Hydrochloride in pharmaceutical, human urine, and serum samples. The proposed method was validated based on the guidelines of the International…
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Investigation of the effect of metal-organic framework containing additional carboxyl group on CO2 separation in PEBAX-based membrane
Membrane-based processes have attracted significant attention as economical methods for separation. In this study, mixed matrix membranes were fabricated by incorporating UiO-66-(COOH)2 into a poly(ether-block-amide) matrix at various loading percentages using the solution casting and solvent…
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Investigating the corrosion resistance of coated steel with Ni-W-P nanocomposites prepared by electroless method
In the present study, Ni-W-P nanocomposite coatings were prepared by electroless method. The surface morphology and composition of the coatings were analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) while the crystal structure of the coatings was analyzed…
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Fabrication of a novel molecularly imprinted polymer magnetic adsorbent and investigation of its performance for removing copper ions from water
The construction and investigation of the properties of the molecular imprinting polymer (MIP) adsorbent to remove the copper ion pollutant from the aqueous environment was carried out in this research. In the first stage, iron/silica core-shell nanoparticles were made by co-precipitation method…
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Synthesis and combination of SrFe2O4 nano-spinel on CuO for photocatalytic removal: a kinetic study
.Nano photocatalyst based on SrFe2O4-CuO composite was synthesized by easy chemical method. The scanning electron microscope image shows the bonding of SrFe2O4 and CuO. Ultraviolet-visible spectroscopy has calculated the energy gap of SrFe2O4-CuO nanocomposite and it is lower than CuO. EDS…
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Synthesis and characterization of mono substituted polyoxometalate incorporation into amorph silica and catalytic activity of these compounds in selective oxidation of aromatic amines with hydrogen peroxide
In this study, the selective oxidation of aromatic amines using hydrogen peroxide as an green oxidant and a polyoxometalate catalyst modified with first-row transition metals in a silica matrix was performed. Initially Mono substituted Keggin type Polyoxometalates with first row transition metals…