Home > Publications database > Fe$^{3+}$/Iron Oxide/SiO$_{2}$ Xerogel Catalysts for p-nitrophenol Degradation by Photo-Fenton Effects: Influence of Thermal Treatment on Catalysts Texture > print

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100 1 _ |a Mahy, Julien G.
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245 _ _ |a Fe$^{3+}$/Iron Oxide/SiO$_{2}$ Xerogel Catalysts for p-nitrophenol Degradation by Photo-Fenton Effects: Influence of Thermal Treatment on Catalysts Texture
260 _ _ |a Amsterdam [u.a.]
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520 _ _ |a Three iron xerogel catalysts were synthesized by hydrolysis and condensation of tetraethoxysilane (TEOS) and 3-(2-aminoethylamino)propyltrimethoxysilane (EDAS) which is able to form a chelate with iron ions. Four thermal treatments were applied to catalysts: drying, drying-autoclaving, calcination and calcination-autoclaving. Textural characterizations show that the specific surface area is increased by calcination while materials microporosity completely collapse when using autoclaving. Based on Mössbauer spectroscopy and magnetometry measurements, only Fe3+ species were observed in xerogel catalysts. The photo-Fenton effect of these catalysts was evaluated on the degradation of p-nitrophenol in aqueous media. In the presence of H2O2, results show that this effect reachs 99% of degradation after 24 h. Mössbauer and catalytic tests are presented in another paper.
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700 1 _ |a Herlitschke, Marcus
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700 1 _ |a Lambert, Stéphanie D.
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700 1 _ |a Hermann, Raphael
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