Browsing School of Chemistry and Physics by Title
Now showing items 404-423 of 705
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Oxidative degradation of textile dyes with hypochlorite and chlorine dioxide.
(2010)The oxidation reaction mechanisms of water soluble textile dyes amaranth (an azo dye), brilliant blue-R (a triaryl dye) and safranine-O (an azine dye) with oxidants- hypochlorite and chlorine dioxide, were investigated. ... -
The oxidative dehydrogenation of n-Hexane and n-Octane over vanadium magnesium oxide catalysts.
(2006)Vanadium magnesium oxide (VMgO) catalysts with different vanadium loadings were synthesized and tested for catalytic activity using pure «-hexane and «-octane as feeds. High surface area catalysts were obtained by the wet ... -
Oxidative dehydrogenation of n-octane over molybdate based catalysts.
(2014)The oxidative dehydrogenation of n-octane over different molybdates was investigated using a continuous flow fixed bed reactor in the temperature range of 350-550 °C at 50 °C intervals. Molybdates investigated in this ... -
Oxidative dehydrogenation of n-octane using vanadium-based hydrotalcite-like compounds.
(2010)The oxidative dehydrogenation of alkanes provides a potential route to higher value products such as olefins and aromatic compounds. Alkanes are of low environmental impact and their increasing availability has prompted ... -
The oxidative dehydrogenation of ɳ-octane using manganese oxide supported on SBA-15 catalysts.
(2014)Supported metal oxides have been widely used in heterogeneous catalysis, particularly for the activation of paraffin’s. For this study, manganese oxide supported on SBA-15 was used to investigate the oxidative dehydrogenation ... -
Oxidative reactions to form ethyl methacrylate via a phase specific iron phosphate catalyst .
(2012)The importance of alkyl methacrylates has been firmly established within the chemical industry. For example, free radical polymers, which contain the methacrylate backbone are more rigid than acrylate polymers. Several ... -
Oxidovanadium complexes with N-donor heterocyclic chelates.
(2013)The growing significance of vanadium in medicinal inorganic chemistry is due to the diverse biological activities of its metal complexes, as elaborated in Chapter 1. These biological activities stem from the fact ... -
Ozone initiated oxidation of organic pollutants, m-xylene and 2-chloroethanol.
(2010)A variety of hazardous organic compounds are present in leachate from landfill sites that accept medical and industrial chemical waste. Most of these compounds find their way into nearby streams, rivers and dams, posing a ... -
Palladium catalysed oxidation of a-olefins to ketones.
(1997)The aim of this research project was to investigate the oxidation reactions of olefins to ketones. Initial studies revolved around the oxidation reactions of terminal olefins to symmetrical dialkyl ketones. The inability ... -
Palladium complexes of (Benzoimidazol-2-ylmethyl) amine ligands : synthesis and applications as catalysts in methoxycarbonylation of olefins.
(2014)Compounds N-(1H-benzoimidazol-2-ylmethyl)-2-aniline(L1), N-(1H-benzoimidazol- 2-ylmethyl)-2-methoxyaniline (L2), N-(1H-benzoimidazol-2-ylmethyl)-2-thioaniline (L3) and N-(1H-benzoimidazol-2-ylmethyl)-2-bromoaniline (L4) ... -
Palladium complexes of diphosphazane and related ligands.
(2001)The synthesis, characterisation and X-ray structure detenninations of homonuclear nickel, palladium and platinum complexes with bis(phosphino)amine ligands is reviewed in Chapter 1. Particular attention is given to the ... -
Part 1: The determination of activity coefficients at infinite dilution ; Part 2: Investigations into the colour components of raw sugar.
(1996)PART I: This work is part of an investigation to determine activity coefficients at infinite dilution (1'73) of hydrocarbons dissolved in the industrially important polar solvent tetrahydrothiophene-l, l-dioxide ... -
Pharos : pluri-director, high-resolution, analyser of radiometric properties of soil cores.
(2001)The core-logger has been designed for the high-resolution radiometric analysis of soil cores using multiple detectors. This device allows for the automation of the measuring process and eliminates the need to dissect the ... -
Phase transitions in induced lattice gauge models.
(1995)The present research is based on the study of the phase structure of lattice models incorporating selfinteracting scalars and gauge background fields otherwise known as induced gauge models. Emphasis is placed on the effect ... -
Phosphine and phosphonite complexes of Mn(III), Co(III) and Rh(III) porphyrins.
(2003)This work is aimed at elucidating the structures and spectroscopic properties of phosphine and b phosphonite complexes of Mn(III), Co(III) and Rh(III) porphyrins, a class of coordination compounds that has been little ... -
Photo-degradation of caffeine in aqueous system using heterogeneous mixed oxide catalysts.
(2017)Abstract available in PDF file. -
Photo-switching of dabcyl modified silicon microwire field effect transistors.
(2017)Abstract available in PDF file. -
Photocatalyzed tandem oxidation reactions and their application in the synthesis of quinoxalines.
(2009.)No abstract available. -
A photochemical investigation of two suncreen absorbers in a polar and a non-polar medium.
(2002)Protection against the harmful effects of ultraviolet radiation is of increasing importance due to the depletion of stratospheric ozone, which shields the earth from harmful UVC rays (in the range 200-280 nm) and some UVB ... -
The photochemistry and photostabilization potential of plant extracts on sunscreen absorbers.
(2014)Abstract available in PDF file.