Mesoporous WO3 photocatalyst for the partial oxidation of methane to methanol using electron scavengers
作者： Katherine Villa , Sebastián Murcia-López , Teresa Andreu , Joan Ramón Morante
DOI: 10.1016/J.APCATB.2014.07.055
关键词: Adsorption 、 Photochemistry 、 Mesoporous organosilica 、 Mesoporous material 、 Mesoporous silica 、 Partial oxidation 、 Chemistry 、 Methanol 、 Catalysis 、 Photocatalysis
摘要: Abstract Mesoporous WO3 was synthesized by replicating technique using ordered mesoporous silica KIT-6 as the template. The obtained material exhibits high surface area (151 m2 g−1) and porous structure. photocatalytic conversion of methane into methanol from an aqueous suspension containing studied, well effect addition electron scavengers (Fe3+, Cu2+, Ag+) H2O2 species. In presence Fe3+ ions production about two a half times higher than that pure WO3, which principally attributed to largely improved electron-hole separation in this system. However, CO2 generation rates were also increased, mainly Ag+ ions. It corroborated extra hydroxyl radicals medium do not improve but noticeable increase formation ethane evidenced. This suggests only availability HO•’s adsorbed on catalyst can enhance performance process.
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