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Fabricating nano-sized BiVO4/InVO4/g-C3N4 photocatalysts for efficient degradation of Acid Blue 92 azo dye

Posted on 31. August, 2018.

Photocatalysis using semiconductors has received considerable interest in both the scientific and engineering areas. Especially, metal oxide semiconductor photocatalysts have been widely studied for environmental applications such as cleaning of air and the removal of hazardous compounds from wastewater. 

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The role of ESR spectroscopy in advancing catalytic science: some recent developments

Posted on 27. August, 2015.

Paramagnetic species, i.e. those containing unpaired electrons, are involved as reactive intermediates in many of the mechanisms devised for catalytic processes. Since these tend to have an intrinsically fleeting existence, to detect and characterise them is difficult. They may take the form, for example of free radicals, paramagnetic redox sites on catalytic surfaces, or be a part of the essential functional centre of an enzyme. 

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Density functional theoretical study on the mechanism of adsorption of 2-chlorophenol from water using γ-Fe2O3 nanoparticles

Posted on 18. May, 2015.

The removal of aromatic pollutants from water is of great importance environmentally and industrially. 2-chlorophenol and phenol-like compounds are categorised as persistent pollutants and many techniques have been presented for the removal of phenolic pollutants from water. Among the most important of such techniques is the application of nanoparticles of magnetic metals such as Fe2O3

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A combined quantum mechanics and molecular mechanics study on nitrogen oxide adsorption/dissociation on a tungsten oxide surface

Posted on 1. May, 2015.

The release of chemical pollutants, such as nitrogen oxides (NO and NO2), into the atmosphere is a major source of acid rain and photochemical smog. Finding methods to control and eliminate these pollutants (NOx) from the troposphere is obviously of great interest and as such, the development of NOx gas sensors for environmental monitoring is desirable.

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Cleavage of carbofuran and carbofuranderivatives in micellar aggregates

Posted on 22. April, 2015.

Historically, based on carbamic acid, a large family of carbamate pesticides have been developed, and are also widely employed as insecticides. In 1988, Goto et al. reported the first synthesis of carbofuran, and also described the biological activity of various amino sulfenyl derivatives of methylcarbamate. Later, the synthesis of several procarbofurans was reported by Gaset et al. These derivatives present a substitution in the nitrogen proton by different organic groups.

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Mechanistic and electrochemical investigation of catechol oxidation in the presence of thioacetamide: application for voltammetric determination of thioacetamide in aqueous media

Posted on 1. April, 2015.

Organic sulfur compounds are commonly found in wastewater and sediments and are environmentally significant due to their hideous odour. Sulfur containing organic compounds such as thioacetamide CH3CSNH2 (TAM) have many industrial and non-industrial applications.

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Kinetics of diffusion-controlled adsorption of adenine and adenosine in a carboxymethyl diaminoethane PVC-mediated column system

Posted on 13. March, 2015.

The interactions of biochemical compounds, such as adenine and adenosine, with chelating resins in fixed-beds have been extensively studied. However, a literature search indicates that there are very few studies concerning the kinetics of ligand adsorption in the continuous mode.

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A QM/MM study of NO oxidation on the nanocrystalline surface of tungsten oxide

Posted on 5. March, 2015.

Nitrogen oxides play a major role in air pollution, particularly in the creation of acid rain and photochemical smog. Among the methods that can be used to capture or eliminate these pollutants are adsorption on the surfaces of metal oxide semiconductors (MOSs) and followed by conversion into other materials.

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Mechanistic investigation of the electrooxidation of catechols in the presence of N-methylbenzylamine at room temperature:synthesis of new quinone derivatives 

Posted on 25. February, 2015.

The term quinone refers generally to a 1,4 or 1,2-diketone formally derived from dihydroxy aromatic compounds in which the two carbonyl groups are connected by a system of conjugated double bonds. Naturally-occurring quinones have attracted attention, because of their bright colour with possible uses as dyes and as drugs.

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