Browsing by Author "Brüser, Volker"
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- ItemChemical-reagent free in-situ phosphat sensor based on innovative opto-electrochemical principles : CaliPSo ; Abschlussbericht ; Teilprojekt INP und Unterauftrag AMT ; Berichtszeitraum: 01.10.2008 bis 31.01.2012(Hannover : Technische Informationsbibliothek (TIB), 2012) Brüser, Volker; Kolipaka, Karthika Lakshm[no abstract available]
- ItemDegradation of glyphosate in water by the application of surface corona discharges(Bristol : IWA Publishing, 2021) Zocher, Katja; Gros, Peter; Werneburg, Matthias; Brüser, Volker; Kolb, Juergen F.; Leinweber, PeterGlyphosate (GLP) is one of the most widely applied herbicides, and is found ubiquitously in the environment. The removal of glyphosate from waste water and soil is challenging and can be achieved with chemical or biological methods, which, nevertheless, suffer from different disadvantages. The application of a physical plasma for the removal of GLP in water was examined by the application of surface corona discharges in a wire-to-cylinder setup filled with argon. The plasma was ignited at the liquid surface without any additives. By applying a photometric method, GLP was detected after derivatisation with fluorenyl methoxycarbonyl chloride, whereas phosphate was determined with ammonium molybdate. A GLP degradation rate of 90.8% could be achieved within a treatment time of 30 minutes with an estimated energy efficiency of 0.32 g/kWh.
- ItemMorphology, Optical Properties and Photocatalytic Activity of Photo- and Plasma-Deposited Au and Au/Ag Core/Shell Nanoparticles on Titania Layers(Basel : MDPI, 2018-7-6) Müller, Alexander; Peglow, Sandra; Karnahl, Michael; Kruth, Angela; Junge, Henrik; Brüser, Volker; Scheu, ChristinaTitania is a promising material for numerous photocatalytic reactions such as water splitting and the degradation of organic compounds (e.g., methanol, phenol). Its catalytic performance can be significantly increased by the addition of co-catalysts. In this study, Au and Au/Ag nanoparticles were deposited onto mesoporous titania thin films using photo-deposition (Au) and magnetron-sputtering (Au and Au/Ag). All samples underwent comprehensive structural characterization by grazing incidence X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Nanoparticle distributions and nanoparticle size distributions were correlated to the deposition methods. Light absorption measurements showed features related to diffuse scattering, the band gap of titania and the local surface plasmon resonance of the noble metal nanoparticles. Further, the photocatalytic activities were measured using methanol as a hole scavenger. All nanoparticle-decorated thin films showed significant performance increases in hydrogen evolution under UV illumination compared to pure titania, with an evolution rate of up to 372 μL H2 h−1 cm−2 representing a promising approximately 12-fold increase compared to pure titania.
- ItemTeilvorhaben: "Plasmachemische Oberflächenbehandlung von Grafitfasern in einer Niederdruck-Wirbelschicht" des Verbundprojekts: "Grundlegende Untersuchungen zur plasmachemischen Behandlung von Grafitfasern für innovative Einsatzpotentiale" : Schlussbericht(Hannover : Technische Informationsbibliothek (TIB), 2003) Heintze, M.; Pasch, E.; Brüser, Volker[no abstract available]
- ItemVEM Verbundprojekt "Effizienzsteigerung der Meeresforschungstechnik", Teilprojekt 5: Plasmabehandlung von Stackkomponenten für die Unterwasseranwendungen : Abschlussbericht(Hannover : Technische Informationsbibliothek (TIB), 2011) Brüser, Volker; Savastenko, Natalie; Anklam, Kirsten; Müller, Steffen[no abstract available]
- ItemVerbundprojekt: Spitzenforschung und Innovation in den Neuen Ländern - Light2Hydrogen - "Energie für die Zukunft - Photokatalytische Spaltung von Wasser zu Wasserstoff": TP 2; TP 3 : Schlussbericht(Hannover : Technische Informationsbibliothek (TIB), 2015) Brüser, Volker; Kruth, Angela; Weltmann, Klaus-Dieter[no abstract available]