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

Syntheses with nitriles, xli. polymethines from cyanoacetone hydrazones and tetracyanoethylene

The structures of new butadienyl dyes of the benzothiazole series containing the dithia-15-crown-5 (2a) or dithia-18-crown-6 (2b) fragments were established by X-ray diffraction. Complexation of dyes 2a,b with Hg2+, Pb2+, Cd2+, Ag+, Zn2+, and alkaline-earth cations in aqueous-acetonitrile solutions was studied by spectrophotometry. At a high percentage of water in solutions (P
w ≈ 50%), these dyes have a very low ability to bind Pb2+ cations (logK < 2) and virtually do not bind Cd2+, Zn2+, and alkaline-earth cations. At the same time, these dyes form stable 1: 1 complexes with Hg2+ and Ag+ cations at all P
w. The stability constants of complexes with the Ag+ cation increase with increasing P
w because the free energy of hydration of this cation is much lower than the free energy of solvation in acetonitrile. In the P
w range from 0 to 75%, the stability constants of the complexes of dyes 2a,b with the Hg2+ cation are larger than those of the corresponding complexes with the Ag+ cation by more than four orders of magnitude.

Crown-containing butadienyl dyes 8. Structures and complexation of chromogenic dithia-15(18)-crown-5(6) ethers

Einlagerung von TPP+‐Ionen in Y‐Zeolithe durch formalen Ionenaustausch in wässrigem Medium

The present invention relates to a method for removing xenobiotics present in water during the treatment thereof in water treatment plants or in drinkable water production plants comprising applying a UV-V radiation having a wavelength between 100 and 200 nanometers. A UV-C radiation having a wavelength between 200 and 280 nanometers can also be applied in combination with the UV-V radiation. The invention also relates to a device for implementing said method, wherein said device comprises: a least one reactor; inside the reactor(s), at least one lamp module capable of emitting a radiation having a wavelength between 100 and 200 nanometers and operating in series and/or in parallel and optionally coupled to at least one lamp module capable of emitting a radiation having a wavelength between 200 and 280 nanometers; at least one system for adjusting the water level in the reactor(s); at least one device for powering, controlling and adjusting the lamps; and at least one device for supplying pressurized air or dioxygen.

Plant and method for removing xenobiotics from water using uv-v radiation

The up-scaling of an earlier described VUV-photochemical oxidative functionalization of polystyrene aerosols depends primarily on the possibility to increase substantially the particle concentration in the gas phase, the aerosol flux and the rate of oxidation. The VUV-photolysis of tetrachloro-methane (CCl4) in the presence of air was chosen for the initiation of the oxidation of the polystyrene surface (photo-oxychlorination) taking advantage of the excellent solvent characteristics and the high absorption cross section. FTIR spectroscopic analyses confirm the high efficiency of the process, and chlorination, crosslinking and oxidative particle fragmentation remained at low yields. Secondary products of the VUV-photolysis of CCl4 were trapped and did not interact with the functionalized particles.

André M. Braun

Papers

Syntheses with nitriles, xli. polymethines from cyanoacetone hydrazones and tetracyanoethylene

Crown-containing butadienyl dyes 8. Structures and complexation of chromogenic dithia-15(18)-crown-5(6) ethers

Einlagerung von TPP+‐Ionen in Y‐Zeolithe durch formalen Ionenaustausch in wässrigem Medium

Plant and method for removing xenobiotics from water using uv-v radiation

Up-scaling aerosol functionalization. Photo-oxychlorination using vacuum ultraviolet radiation (VUV)