Sonochemical synthesis of heterostructured ZnO/BiO for photocatalytic desulfurization.

In this study, metal oxides nanoparticles heterogeneous photocatalysts prepared by coprecipitation and ultrasonic techniques were used for diesel desulfurization. They were characterized by scanning electron microscope, powder X-ray diffraction, energy dispersive analysis, diffused reflectance spectra, photoluminescence analysis and BET surface area. The surface area of catalyst B is larger than catalyst A confirming its higher reactivity.

Synthesis and characterization of iron-alumina composites as novel efficient photocatalysts for removal of DBT.

The content of sulfur compounds in diesel fuels is one of the main encountered drawbacks during the production process. Such compounds are generally of substantial, hazardous, and negative environmental impacts. Thus, the massive reduction of their content is recommended.

Elevated CO-free hydrogen productivity through ethanol steam reforming using cubic Co-Nanoparticles based MgO catalyst.

Hydrogen production through the processes of ethanol catalytic steam reforming (SR) is one of the promising routes due to its extensive yield that can be gained. However, catalyst deactivation (as a result of coke formation) is a major drawback in such a process. Therefore, this research work introduces efficient MgO supported Cubic cobalt oxide catalyst for the process of ethanol SR.

Highly Efficient Visible-Light-Induced Photocatalytic Hydrogen Production via Water Splitting using FeCl -Based Ionic Liquids as Homogeneous Photocatalysts.

The ionic liquid (IL) 1-octyl-3-methylimidazolium bromide/FeCl [OMIM]Br/FeCl was prepared with three molar ratios of [OMIM]Br/FeCl (0.5 : 1, 1 : 1, and 2 : 1), and fully characterized through H and C NMR, Fourier-transform IR, and Raman spectroscopic techniques. The optical properties of the prepared [OMIM]Br/FeCl ILs were revealed via diffuse reflectance and photoluminescence spectra.

Increased production of hydrogen with in situ CO capture through the process of water splitting using magnetic core/shell structures as novel photocatalysts.

One of the chief challenges in hydrogen production through the photocatalytic splitting of water is to employ an efficient photocatalyst that has an absorption edge at the range of long wavelengths. In this study, composite structures made of different Ag-based shells over the core of FeO nanoparticles were utilized as novel magnetic photocatalysts for hydrogen generation from water. Specifically, Ag nanoparticles, Ag/(3-aminopropyl) triethoxysilane (APTS), and Ag/polyethyleneimine (PEI) were capped on the surface of the hematite core to produce three visible light-effective photocatalysts.

Novel Calcium Carbonate-titania nanocomposites for enhanced sun light photo catalytic desulfurization process.

Preparation of active photocatalytic nanostructures to harvest the abundant sunlight energy is a recent worldwide direction for clean energy production and environmental management. Following this target, different calcium carbonate-titania nanostructures were prepared by three different pathways using available raw materials such as limestone as calcium precursor. After characterization of the prepared materials with X-ray diffraction (XRD), X-ray fluorescence (XRF) patterns, Fourier transmission infrared (FT-IR), high resolution transmission electron microscope (TEM), N adsorption-desorption isotherm, UV-vis diffuse reflectance and photoluminance (PL), the materials were applied as novel photocatalysts for desulfurization of dibenzothiophene (DBT) and gas oil using different radiation sources at room temperature.

Anti-hepatitis B virus activity of new 1,2,4-triazol-2-yl- and 1,3,4-oxadiazol-2-yl-2-pyridinone derivatives.

A number of 1,3,4-oxadiazole, 3-9, and 1,2,4-triazole derivatives, 13-15, were synthesized starting form the acid hydrazide 1. The 1,3,4-thiadiazole derivative 12 was prepared from the substituted phenylthiosemicarbazide derivative 11 by treatment with sulfuric acid. The aryl hydrazone derivatives 10a-c were synthesized by reaction of the hydrazide 1 with the corresponding ketones.