Search results for "MICI"
showing 10 items of 1671 documents
Doped Lanthanum Ferrite Perovskites: Promising Materials for Photocatalytic Applications
2016
LaFeO3 perovskites both bare and containing 5 to 40 mol% of Cu(II) substituting Fe(III) have been prepared by the citrate auto-combustion synthesis method and used as heterogeneous photocatalysts for the degradation of 2-propanol in gas-solid regime under simulated solar light irradiation. The bare LaFeO3 resulted inactive, however the Cu(II) containing perovskite oxidized 2-propanol to propanone and eventually to CO2 and H2O. The most acive material resuted to be those with a 20% of Cu. Cu doping decreases the unit cell volume, and increases the distortion of (Fe/Cu)O6 octahedra, thus moving towards a configuration with four longer and two shorter bond lengths.
Phthalocyanine/TiO2 and Porphyrin /TiO2 Photocatalysts Used in Processes under Mild Conditions
2015
Composite materials prepared by loading polycrystalline TiO2 powders with lipophilic highly branched Cu(II) and metal-free phthalocyanines or porphyrins, have been used as photocatalysts to promote photo degradative processes as well as the efficient photoreduction of carbon dioxide in aqueous suspension affording significant amounts of formic acid.
Preparation, Characterisation and Photocatalytic activity of SrTiO3 based Perovskites.
2014
A Collection of Chemical Reaction Engineering Solutions in Photocatalysis
2017
There are problems in photocatalysis that researchers cannot disregard in a rigorous study of photocatalytic systems. The purpose of the present work is to show how chemical reaction engineering can answers to the previous questions, thus helping scientists to face researches on photocatalysis more successfull and consistenty
TiO2-CeO2 based catalysts for photocatalytic oxidation of VOC and water splitting reactions
2016
Photocatalysis with TiO2 is one of the most promising green process for the decomposition of organic pollutants and the hydrogen production . Photo-oxidation of 2-propanol, representative of volatile organic compounds (VOC) and photo-catalytic water splitting for H2 production were investigated over TiO2 catalysts doped with a metal (Au and Ag at 1wt. %) and/or ceria (10 wt.%).
Photocatalytic conversion of glucose in aqueous suspensions of heteropolyacid-TiO2 composites.
2015
Photocatalytic conversion of glucose was carried out in aqueous suspensions in the presence of dfifferent commercial and home prepared TiO2 samples functionalized with a commercial heteropolyacid. Different reaction extents and distribution of intermediate oxidation products were observed depending on the photocatalyst.
Codeposition of Fe 3 O 4 nanoparticles sandwiched between g-C3N4 and TiO2 nanosheets: Structure, characterization and high photocatalytic activity fo…
2019
Novel ternary nanocomposite photocatalysts based on g-C3N4 /Fe3O4 /TiO2 nanosheet were synthesized using simple solid combustion, hydrothermal and wetness impregnation methods. The g-C3N4 nanosheet (2D)/ Fe3O4 /TiO2 nanosheet (2D) triad-interface nanocomposite arranged in the form of Fe 3 O 4 nanoparticle was sandwiched and effectively dispersed on the surface between g-C3N4 and TiO2 nanosheets. The synthesized composites were characterized by some specific techniques such as X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, field emission scanning electronic microscopy (FE-SEM), transmission electron microscope (TEM), vibrating sample magnetometer (VSM), specific su…
Selective Photocatalytic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxaldehyde by Polymeric C3N4-H2O2 Adduct
2018
Selective Photocatalytic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxaldehyde by Polymeric C3N4-H2O2 Adduct
Photocatalytic Ozonation: from Science to Aquaculture Applications
2016
Demographic growth and management of water and food resources are probably the most challenging issues of the coming years. In this scenario, intensive aquacultura will be increasingly important in the near future