Search Results - "Braun, A.M"
-
1
comparative study of doped and un-doped sol-gel TiO2 and P25 TiO2 (photo)electrodes
Published in Water science and technology (2007)“…Doped and undoped titanium dioxide films have been deposited on indium tin oxide glass using the sol-gel technique. The percentage of rutile in the prepared…”
Get full text
Journal Article -
2
Low-threshold InGaAsP ring lasers fabricated using bi-level dry etching
Published in IEEE photonics technology letters (01-02-2000)“…We report a novel bi-level etching technique that permits the use of standard photolithography for coupling to deeply etched ring resonator structures. The…”
Get full text
Journal Article -
3
Technical development of UV-C- and VUV-photochemically induced oxidative degradation processes
Published in Water science and technology (01-01-2004)“…Technical development work is presented, where the VUV photochemically induced oxidative degradation is used: (i) for analytic purposes, and (ii) for small to…”
Get full text
Journal Article -
4
Approaches towards a technically feasible photoinitiated prepolymerization of methyl methacrylate
Published in Chemical engineering and processing (01-10-2004)“…The photochemically initiated polymerization offers distinct advantages in controlling the molecular weights and the polydispersity of PMMA-prepolymers. Such…”
Get full text
Journal Article -
5
Universality of mode-locked jitter performance
Published in IEEE photonics technology letters (01-08-2002)“…It is shown experimentally that the jitter of actively mode-locked laser pulses is determined by two factors: first, by spontaneous noise associated with…”
Get full text
Journal Article -
6
Lanthanide Oxide Doped Titanium Dioxide Photocatalysts: Effective Photocatalysts for the Enhanced Degradation of Salicylic Acid and t-Cinnamic Acid
Published in Journal of catalysis (10-12-2001)“…The photocatalytic degradation of salicylic acid and t-cinnamic acid has been investigated in aqueous suspensions of lanthanide oxide doped TiO2…”
Get full text
Journal Article -
7
Photochemical processes for water treatment
Published in Chemical reviews (01-03-1993)“…The photochemical technology involved with advanced oxidation processes is discussed. Photooxidation reactions upon electronic excitation of the organic…”
Get full text
Journal Article -
8
Dynamical Stellar Masses of Pre-main-sequence Stars in Lupus and Taurus Obtained with ALMA Surveys in Comparison with Stellar Evolutionary Models
Published in The Astrophysical journal (01-02-2021)“…We analyzed archival molecular line data of pre-main-sequence (PMS) stars in the Lupus and Taurus star-forming regions obtained with ALMA surveys with an…”
Get full text
Journal Article -
9
Lanthanide oxide-doped titanium dioxide : Effective photocatalysts for the degradation of organic pollutants
Published in Journal of materials science (01-11-1999)“…A series of lanthanide oxide-doped titanium dioxide photocatalysts Ln2O3/TiO2 (Ln3+ = Eu3+, Pr3+, Yb3+) were prepared. The photocatalysts reveal a…”
Get full text
Journal Article -
10
Industrial waste water treatment: large scale development of a light-enhanced Fenton reaction
Published in Chemical engineering and processing (01-09-1997)“…The feasibility of a large scale application of the light-enhanced Fenton reaction has been investigated for the treatment of a highly contaminated industrial…”
Get full text
Journal Article -
11
Degradation of polyvinyl alcohol (PVA) by homogeneous and heterogeneous photocatalysis applied to the photochemically enhanced Fenton reaction
Published in Water science and technology (01-01-2001)“…The reaction mechanism of the oxidative degradation of polyvinyl alcohol (PVA) by the photochemically enhanced Fenton reaction was studied using a homogeneous…”
Get full text
Conference Proceeding Journal Article -
12
New insights into the mechanisms of the thermal Fenton reactions occurring using different iron(II)-complexes
Published in Water science and technology (01-01-2004)“…Although the Fenton reagent (a mixture of hydrogen peroxide and an iron(II) salt) has been known for more than a century, the manifold mechanisms occurring…”
Get full text
Journal Article -
13
Modeling the kinetics of a photochemical water treatment process by means of artificial neural networks
Published in Chemical engineering and processing (01-09-1999)“…We have investigated the kinetics of the degradation of 2,4-dimethyl aniline (2,4-xylidine), chosen as a model pollutant, by the photochemically enhanced…”
Get full text
Journal Article -
14
Optimal experimental design and artificial neural networks applied to the photochemically enhanced Fenton reaction
Published in Water science and technology (01-01-2001)“…Among advanced oxidation processes (AOPs), the photochemically enhanced Fenton reaction may be considered as one of the most efficient for the degradation of…”
Get full text
Conference Proceeding Journal Article -
15
Large scale development of a light-enhanced fenton reaction by optimal experimental design
Published in Water Science & Technology (1997)“…Photochemical advanced oxidation processes (AOP) for the treatment of waste waters containing biocidal or non-biodegradable organic compounds rely mainly on…”
Get full text
Journal Article Conference Proceeding -
16
Vacuum-UV photolysis of aqueous solutions of nitrate: effect of organic matter I. Phenol
Published in Journal of photochemistry and photobiology. A, Chemistry. (1996)“…Water homolyses on vacuum-UV excitation ( λ < 200 nm) to give HO . radicals, H . atoms and, with lower efficiency, hydrated electrons. These primary species…”
Get full text
Journal Article -
17
Simultaneous photochemical generation of ozone in the gas phase and photolysis of aqueous reaction systems using one VUV light source
Published in Water Science & Technology (1997)“…A more efficient use of vacuum ultraviolet (VUV) radiation produced by an immersed Xe-excimer light source (172 nm) was investigated for the oxidative…”
Get full text
Journal Article Conference Proceeding -
18
Kinetic study of the reactions of chlorine atoms and Cl{sub 2}{sup .-} radical anions in aqueous solutions. 1. Reaction with benzene
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (13-04-2000)“…The photolysis of Na{sub 2}S{sub 2}O8 aqueous solutions containing Cl{sup {minus}} ions is a clean method for kinetic studies of the species Cl{sup…”
Get full text
Journal Article -
19
[FeII(bpy)3]2+/TiO2-Codoped Zeolites: Synthesis, Characterization, and First Application in Photocatalysis
Published in Chemphyschem (17-05-2002)“…TiO2‐codoped [FeII(bpy)3]2+/zeolite Y systems are revealed to be efficient photocatalysts for photochemically enhanced Fenton processes. Preparation,…”
Get full text
Journal Article -
20
Development of an optoacoustic sensor module for pH and/or CO 2 determination in aqueous solutions
Published in Sensors and actuators. B, Chemical (1997)“…Laser-induced optoacoustic spectroscopy (LIOAS) has been used for the quantitative analysis of pH and/or CO 2 in aqueous solutions. This technique implies the…”
Get full text
Journal Article