0000000000985923

AUTHOR

Tarek Barakat

0000-0001-9886-4402

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Visible light photocatalytic activity of macro-mesoporous TiO2-CeO2inverse opals

2018

Macro-mesoporous TiO2 inverse opal materials were synthesized and they were tested as photocatalysts under visible light irradiation. The influence of cerium oxide addition towards the Rhodamine B (RhB) photodegradation activity was evaluated. Structural, textural, spectral and surface properties of the TiO2-CeO2 inverse opal nanocomposites were studied by XRD, XPS, SEM, TEM, N2 adsorption-desorption, Diffuse Reflectance UV–vis and Photoluminescence spectroscopies. Compared to commercial TiO2 anatase, the macro-mesoporous TiO2 inverse opal exhibited six times higher kinetic rate constant in the RhB degradation under visible light irradiation. The good photocatalytic activity was related to …

AnataseCerium oxideRhodamine BGeneral Chemical EngineeringInorganic chemistryGeneral Physics and Astronomy02 engineering and technologyAdvanced oxidation process010402 general chemistryPorous structure01 natural sciencesNanomaterialschemistry.chemical_compoundPhysics and Astronomy (all)PhotocatalysiChemical Engineering (all)PhotocatalysisPhotodegradationChemistryPhotonic effectChemistry (all)General ChemistryCerium oxidePorous structures021001 nanoscience & nanotechnology0104 chemical sciencesChemical engineeringAdvanced oxidation process; Cerium oxide; Photocatalysis; Photonic effect; Porous structures; Rhodamine B; Titanium dioxide; Chemistry (all); Chemical Engineering (all); Physics and Astronomy (all)Titanium dioxidePhotocatalysisAdvanced oxidation proceTitanium dioxideSettore CHIM/07 - Fondamenti Chimici Delle Tecnologie0210 nano-technologyMesoporous materialVisible spectrum
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