TY - JOUR A1 - Nadejde, C. A1 - Neamtu, M. A1 - Schneider, Rudolf A1 - Hodoroaba, Vasile-Dan A1 - Ababei, G. A1 - Panne, Ulrich T1 - Catalytical degradation of relevant pollutants from waters using magnetic nanocatalysts N2 - The catalytic efficiency of two magnetically responsive nanocatalysts was evaluated for the Degradation of Reactive Black 5 (RB5) and Reactive Yellow 84 (RY84) azo dyes using hydrogen peroxide as oxidant undervery mild conditions (atmospheric pressure, room temperature). In order to obtain the nanocatalysts, thesurface of magnetite (Fe3O4) nanoparticles, prepared by a co-precipitation method, was further modified with ferrous oxalate, a highly sensitive non-hazardous reducing agent. The sensitized nanomaterials were characterized by X-ray diffraction, scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy and vibrating sample magnetometry, and used in the catalytic wet hydrogen peroxideoxidation (CWHPO) of RB5 and RY84, in laboratory-scale experiments. The effect of important variables such as catalyst dosage, H2O2 concentration, and contact time was studied in the dye Degradation kinetics. The results showed that it was possible to remove up to 99.7% dye in the presence of 20 mM H2O2 after 240 min of oxidation for a catalyst concentration of 10 g L−1at 25◦C and initial pH value of 9.0.CWHPO of reactive dyes using sensitized magnetic nanocatalysts can be a suitable pre-treatment methodfor complete decolorization of effluents from textile dyeing and finishing processes, once the Optimum operating conditions are established. T2 - 10th International Conference On Physics Of Advanced Materials (ICPAM-10) CY - Iasi, Romania DA - 22.09.2014 KW - Sensitized magnetic nanocatalysts KW - Catalytic wet peroxide oxidation KW - Reactive azo dye degradation PY - 2015 UR - http://www.sciencedirect.com/science/article/pii/S0169433215000483 DO - https://doi.org/10.1016/j.apsusc.2015.01.036 SN - 0169-4332 VL - 352 SP - 42 EP - 48 PB - Elsevier B.V. AN - OPUS4-38760 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nadejde, C. A1 - Neamtu, Mariana A1 - Hodoroaba, Vasile-Dan A1 - Schneider, Rudolf A1 - Ababei, G. A1 - Panne, Ulrich T1 - Characterization and application of Green Fenton-like catalysts for the removal of water pollutants N2 - Three types of magnetite-chitosan/iron oxalate/iron citrate nanoparticles (NP) were evaluated as magnetic heterogeneous catalysts for water treatment. T2 - PTIM 2015, 1st International Caparica Conference on Pollutant Toxic Ions and Molecules CY - Caparica, Portugal DA - 02.112015 KW - Bisphenol A degradation KW - Nanocatalysts KW - Characterization KW - Fenton oxidation KW - Wastewater PY - 2015 SN - 978-989-99361-6-4 SP - 186 EP - 187 PB - Proteomass AN - OPUS4-40082 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nadejde, C. A1 - Neamtu, M. A1 - Hodoroaba, Vasile-Dan A1 - Schneider, Rudolf A1 - Paul, Andrea A1 - Ababei, G. A1 - Panne, Ulrich T1 - Green Fenton-like magnetic nanocatalysts: Synthesis, characterization and catalytic application N2 - Five iron oxalate core–shell magnetite nanoparticles catalysts are evaluated as magnetic heterogeneous materials. Simple and efficient procedures for the preparation of magnetic iron oxalate coated nanoparticles are presented. The catalysts are fully characterized using various investigation techniques. Additionally, the formation of photo-sensitized oxygen by spin-trapping using electron spin resonance is investigated. The catalytic activity of two model substrates (carbamazepine and bisphenol A) is also evaluated. The effect of operational parameters (catalyst and H2O2 concentration, UVA light) on the degradation performance of the oxidation process is investigated. The obtained reaction rates depend on the nature of the compound and increase with iron oxide shell thickness of the catalyst. Moreover, these materials show a significant activity during two consecutive tests. The optimum experimental parameters are found to be 1.0 g L-1 of catalysts, 10 mM H2O2, under UVA irradiation. More than 99% of both substrates are removed after 30 min of reaction time under the experimental conditions given above. The results obtained show that the catalysts are suitable candidates for the removal of pollutants in wastewaters by means of the Fenton heterogeneous reaction. KW - Magnetic core–shell nanocatalysts KW - Characterization KW - Fenton oxidation KW - Micropollutants KW - Water treatment PY - 2015 DO - https://doi.org/10.1016/j.apcatb.2015.04.050 SN - 0926-3373 SN - 1873-3883 VL - 176-177 SP - 667 EP - 677 PB - Elsevier CY - Amsterdam AN - OPUS4-33820 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Neamtu, Mariana A1 - Nadejde, C. A1 - Hodoroaba, Vasile-Dan A1 - Schneider, Rudolf A1 - Paul, Andrea A1 - Ababei, G. A1 - Panne, Ulrich T1 - Green Fenton-like magnetic nanocatalysts: Synthesis, characterization and catalytic application N2 - Five iron oxalate core–shell magnetite nanoparticles catalysts are evaluated as magnetic heterogeneous materials. Simple and efficient procedures for the preparation of magnetic iron oxalate coated nanoparticles are presented. The catalysts are fully characterized using various investigation techniques. Additionally, the formation of photo-sensitized oxygen by spin-trapping using electron spin resonance is investigated. The catalytic activity of two model substrates (carbamazepine and bisphenol A) is also evaluated. The effect of operational parameters (catalyst and H2O2 concentration, UVA light) on the degradation performance of the oxidation process is investigated. The obtained reaction rates depend on the nature of the compound and increase with iron oxide shell thickness of the catalyst. Moreover, these materials show a significant activity during two consecutive tests. The optimum experimental parameters are found to be 1.0 g L−1 of catalysts, 10 mM H2O2, under UVA irradiation. More than 99% of both substrates are removed after 30 min of reaction time under the experimental conditions given above. The results obtained show that the catalysts are suitable candidates for the removal of pollutants in wastewaters by means of the Fenton heterogeneous reaction. KW - Five iron oxalate core–shell magnetite nanoparticles catalysts are evaluated as magnetic heterogeneous KW - Characterization KW - Micropollutants PY - 2015 DO - https://doi.org/10.1016/j.apcatb.2015.04.050 SN - 0926-3373 SN - 1873-3883 VL - 176-177 SP - 667 EP - 677 PB - Elsevier AN - OPUS4-40072 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nadejde, C. A1 - Neamtu, Mariana A1 - Hodoroaba, Vasile-Dan A1 - Schneider, Rudolf A1 - Paul, Andrea A1 - Ababei, G. A1 - Panne, Ulrich T1 - Green Fenton-like catalysts for the removal of water pollutants N2 - Two types of surface modified magnetite (Fe3O4) nanoparticles, coated with either tannic acid (TA) or dissolved natural organic matter (NOM), were evaluated as magnetic heterogeneous catalysts. Simple and efficient procedures for the synthesis of the magnetic catalysts were employed, their properties being fully assessed by various characterization techniques. The catalytic activity in heterogeneous oxidation of aqueous solutions containing Bisphenol A (BPA) over the catalysts was comparatively studied. The optimum experimental parameters were: 1g/L of catalysts, 10 mM H2O2, under UV irradiation. The highest mineralization rates were observed for Fe3O4-TA catalyst. More than 80% of BPA were removed after 30 minutes of reaction time under the specified experimental conditions. The results showed that the obtained catalysts are suitable candidates for the removal of pollutants in wastewaters by means of heterogeneous reaction T2 - TechConnect World Innovation Conference Nanotech 2015 CY - Washington, DC, Maryland, USA DA - 14.06.2015 KW - Nanocatalysts KW - Characterization KW - Fenton oxidation KW - Wastewater KW - Bisphenol A degradation PY - 2015 SN - 978-1- 4987-4733-2 SN - 978-1-4987-4728-8 VL - 2 SP - 87 EP - 90 PB - CRC Press, Taylor&Francis Group AN - OPUS4-40074 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Barthel, Anne-Kathrin A1 - Wachtendorf, Volker A1 - Sturm, Heinz A1 - Meyer-Plath, A. T1 - Uncovering Carbon Nanotube networks on Polycarbonate composite surfaces by solar-spectral irradiation - Relevance to Nanofiber release T2 - Carbon 2015 - Innovation with Carbon Materials CY - Dresden, Germany DA - 2015-07-12 PY - 2015 AN - OPUS4-34065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Marc Benjamin A1 - Meyer, Susann A1 - Solomun, Tihomir A1 - Kunte, Hans-Jörg A1 - Sturm, Heinz T1 - Water structuring induced by Ectoine as a possible explanation for its protection against radiation T2 - Annual Conference 2015 of the Association for General and Applied Microbiology CY - Marburg, Germany DA - 2015-03-01 PY - 2015 AN - OPUS4-32905 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröter, Maria-Astrid A1 - Sturm, Heinz A1 - Ritter, Martin A1 - Holschneider, M. T1 - How to image vibrating spatial MEMS structures? T2 - Microscopy Conference 2015 CY - Göttingen, Germany DA - 2015-09-06 PY - 2015 AN - OPUS4-34317 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weidner, Steffen A1 - Gabriel, Stefan A1 - Panne, Ulrich A1 - Schwarzinger, C. T1 - Entmischungsphänomene in der MALDI dried-droplet Probenpräparation und deren Vermeidung T2 - Anakon 2015 CY - Graz (Österreich) DA - 2015-03-23 PY - 2015 AN - OPUS4-33053 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gallo, Emanuela A1 - Stöcklein, Waldemar A1 - Schartel, Bernhard A1 - Klack, Patrick T1 - Assessing Cable Reaction to Fire by New Intermediate-Scale Method T2 - FRPM 2015, 15th European Meeting on Fire Retardancy and Protection of Materials CY - Berlin, Germany DA - 2015-06-22 PY - 2015 AN - OPUS4-33629 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Morys, Michael A1 - Illerhaus, Bernhard A1 - Schartel, Bernhard T1 - Advanced Residue Analysis: µ-Computed Tomography of Intuemscent Chars T2 - FRPM 2015, 15th European Meeting on Fire Retardancy and Protection of Materials CY - Berlin, Germany DA - 2015-06-22 PY - 2015 AN - OPUS4-33626 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Patrick A1 - Schartel, Bernhard T1 - Fire Performance of Epoxy Resin Modified with Melamine Poly(Metal Phosphate) T2 - FRPM 2015, 15th European Meeting on Fire Retardancy and Protection of Materials CY - Berlin, Germany DA - 2015-06-22 PY - 2015 AN - OPUS4-33632 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schallschmidt, Kristin A1 - Becker, Roland A1 - Menzel, R. A1 - Johnen, D. A1 - Fischer-Tenhagen, C. A1 - Rolff, J. A1 - Nehls, Irene T1 - Lungenkrebszellkulturen - ein Modell für die Biomarkersuche mit Tiernasen? T2 - Symposium Odorologie CY - Hamburg DA - 2015-03-23 PY - 2015 AN - OPUS4-32781 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schallschmidt, Kristin A1 - Jung, Christian A1 - Becker, Roland A1 - Frese, S. A1 - Leschber, G. A1 - Neudecker, J. A1 - Nehls, Irene T1 - Erste Ergebnisse zur Untersuchung von Atemluftproblemen im Rahmen von BIOAIR T2 - 9. Interdisziplinäres Doktorandenseminar CY - Berlin DA - 2015-02-22 PY - 2015 AN - OPUS4-32630 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard T1 - Towards Fire and Flame Retardant Composites T2 - 7th Asia-Europe Symposium on Processing and Properties of Reinforced Polymers, AESP7 CY - Madrid, Spain DA - 2015-02-04 PY - 2015 AN - OPUS4-32632 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schallschmidt, Kristin A1 - Halama, Kai A1 - Kaufmann, M. A1 - Mügge, C. A1 - Kroh, L. W. A1 - Becker, Roland A1 - Nehls, Irene T1 - Charakterisierung flüchtiger Nitrosothiole T2 - 9. Interdisziplinäres Doktorandenseminar CY - Berlin DA - 2015-02-22 PY - 2015 AN - OPUS4-32629 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ammann, Dominic A1 - Becker, Roland A1 - Kohl, Anka A1 - Nehls, Irene T1 - Alcohol consumption marker in hair: Impact and detection of cowsmetic bleaching T2 - 9. Interdisziplinäres Doktorandenseminar CY - Berlin DA - 2015-02-22 PY - 2015 AN - OPUS4-32570 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Simon, Franz-Georg T1 - Künstler dürfen auch weiterhin mit Cadmium Gelb malen N2 - Seit 1829 wird die Farbe Cadmium Gelb in der Malerei verwendet, Cadmium Rot seit 1907. Wegen ihrer Klarheit und Leuchtkraft werden diese Farben von vielen Künstlern geschätzt. Aus Schweden kommt nun der Vorstoß, die Cadmium-Farben zu verbieten, weil das Schwermetall Cadmium zur Verunreinigung landwirtschaftlicher Flächen führen könnte. Sie beraten die Europäische Chemikalienagentur ECHA, die für das Verbotsverfahren zuständig ist. Müssen Künstler in naher Zukunft auf Cadmium Gelb und Cadmium Rot verzichten? KW - Cadmium KW - Mineraldünger KW - Klärschlamm PY - 2015 SN - 0939-9259 VL - 573 SP - 22 EP - 23 PB - Informationsdienst Kunst, Verwaltungsleitung CY - Berlin AN - OPUS4-32826 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Martins, Marta A1 - Schartel, Bernhard A1 - Magalhães, Fernão D. A1 - Pereira, Celeste M. C. T1 - Flammability of an Epoxy Resin: Comparing the Performance of Anionic and Cationic Nanoclays T2 - COST MP1105 SCIENTIFIC Workshop: Advances in the synthesis and characterization of nanomaterials for flame retardant applications CY - Bucharest, Romania DA - 2015-03-26 PY - 2015 AN - OPUS4-32899 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schubert, Martina A1 - Bastian, Martin A1 - Schartel, Bernhard T1 - Comparing Different Routes to Halogen-free Flame Retardant Wood-Plastic Composites T2 - Eurofillers Polymer Blends 2015 CY - Montpellier, France DA - 2015-04-26 PY - 2015 AN - OPUS4-33186 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -