Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

The surface science of titanium dioxide

Signaling Recognition Events with Fluorescent Sensors and Switches.

TiO2 photocatalysis and related surface phenomena

Ru(II) polypyridine complexes: photophysics, photochemistry, eletrochemistry, and chemiluminescence

Fil: Garcia Einschlag, Fernando Sebastian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Santa Fe. Instituto de Desarrollo Tecnologico para la Industria Quimica. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnologico para la Industria Quimica; Argentina

Evaluation of the efficiency of photodegradation of nitroaromatics applying the UV/H2O2 technique.

The effective degradation of polyvinyl alcohol (PVA) was achieved by the application of the photochemically enhanced Fenton reaction. This ‘Advanced Oxidation Process’ was studied in a batch reactor (V = 0.75 1) using a mercury medium pressure light source. The accuracy of the DOC measurements in function of irradiation and reaction time was remarkably enhanced by the addition of a reduction and precipitation agent, consisting of an aqueous solution of Na3PO4, Na2SO3 and Kl. Effective oxidation was observed when employing low iron(II) concentrations of approximately 1 equivalent of iron(II) per 20 PVA-units (C2H4O) and a stoichiometric amount of H2O2 with respect to the PVA-units to be oxidized.

André M. Braun

Papers

Evaluation of the efficiency of photodegradation of nitroaromatics applying the UV/H2O2 technique.

Oxidative degradation of poly vinyl alcohol by the photochemically enhanced Fenton reaction

Optimization of the heterogeneous Fenton-oxidation of the model pollutant 2,4-xylidine using the optimal experimental design methodology

Photophysikalische und photochemische Prozesse in micellaren Systemen

Large scale development of a light-enhanced fenton reaction by optimal experimental design