Synthesis, characterization and visible light photocatalytic activity of metal based TiO2 monoliths for CO2 reduction
作者： Oluwafunmilola Ola , M. Mercedes Maroto-Valer
DOI: 10.1016/J.CEJ.2015.07.090
关键词: Materials science 、 Photocatalysis 、 Optical fiber 、 Chemical engineering 、 Visible spectrum 、 Metal 、 Absorption edge 、 Titanium dioxide 、 Slurry 、 Monolith
摘要: Abstract The use of multichannel monoliths for CO2 photoreduction applications is gaining increased attention over slurry and annular reactors due to their tunable geometry reactor designs exposed surface area per volume. Metal based TiO2 sol with varying concentrations Cr, V Co were deposited on ceramic honeycomb monolithic structures threaded optical fibres, which can provide light irradiation along each coated interconnected channel. show a red shift absorption edge in the visible region increase increasing metal concentration compared pure TiO2. Photocatalytic activities under evaluated vapour-phase CO2 photoreduction with H2O. Maximum acetaldehyde rate 11.13 μmol/gcat h was achieved 0.5 wt% V–TiO2 monolith after 4 h irradiation.
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