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 T2 - Applied catalysis / B 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. PB - Elsevier CY - Amsterdam KW - Magnetic core–shell nanocatalysts KW - Characterization KW - Fenton oxidation KW - Micropollutants KW - Water treatment PY - 2015 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/33820 AN - OPUS4-33820 SN - 0926-3373 SN - 1873-3883 VL - 176-177 SP - 667 EP - 677 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany