Efficient Fenton-Like Catalysis for Ibuprofen Degradation Under Solar Light Using Iron and Manganese Supported on ZnAl/Layered Double Hydroxides
Journal Title: BULETINUL INSTITUTULUI POLITEHNIC DIN IASI, CHIMIE SI INGINERIE CHIMICA - Year 2018, Vol 64, Issue 2
Abstract
Herein we report the fabrication of efficient photocatalysts for degrading ibuprofen from aqueous solutions by solar light by photocatalysis and photo-Fenton catalysis processes. Heterostructures composites of iron or iron-manganese (Fe = 10 wt%; Mn = 4 wt%) self-supported on the surface of zinc-based layered double hydroxides (LDHs) were synthesized by exploiting the manifestation of the LDHs “structural memory” effect in aqueous solutions of iron and manganese salts and further tested as catalysts. ZnAl anionic clay (as Zn2+/Al3+ molar ratio = 3) was obtained by coprecipitation method. The characteristics of Fe-Mn/ZnAl and Fe/ZnAl heterostructures were described by X-ray diffraction (XRD) analysis, Fourier transform infrared (FTIR) and solid-phase UV-Vis spectrophotometric analyses. Photocatalytic and photo-Fenton studies were performed in batch mode using appropriate amounts of catalysts and H2O2 as Fenton reagent. The UNNASOL (US800, 250 W) solar simulator was used as an irradiation source and an UV-Vis spectrophotometer to monitor the ibuprofen concentration. The present study indicate that ibuprofen degradation for photo-Fenton process reached a high efficiency in the presence of Fe-Mn/ZnAl and Fe/ZnAl photocatalysts.
Authors and Affiliations
MIHAELA DARIE, GABRIELA CARJA
Keywords
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