Photocatalytic degradation of 4-nitrophenol in aqueous suspension by Using Functionalized Porphyrin-TiO2 Photocatalysis Under Visible Irradiation

Phthalocyanine/TiO2 and Porphyrin /TiO2 Photocatalysts Used in Processes under Mild Conditions

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.

COMPARISON OF THE PHOTOCATALYTIC DEGRADATION OF 2-PROPANOL IN GAS-SOLID AND LIQUID-SOLID SYSTEMS BY USING TiO2 – LnPc2 HYBRID POWDERS

Photocatalytic degradation of 2-propanol was carried out as a probe reaction both in gas–solid and in liquid–solid systems in the presence of TiO2 both bare and impregnated with lanthanide (Sm, Gd, Ho) bis-phthalocyanines (LnPc2) used as sensitizers. Continuous and batch photo-reactors, irradiated with an equal flux of photons, were used in gas–solid and in liquid–solid systems, respectively. Propanone and acetaldehyde were the main intermediates found in both systems during 2-propanol oxidation, whereas carbon dioxide and water were the final oxidation products exclusively in the gas–solid regime. The photocatalysts exhibited significantly higher activity in the liquid–solid system than in…

New TiO2 based photocatalysts for the degradation of organic pollutants in water

Photocatalytic degradation of 4-nitrophenol in aqueous suspension by using polycrystalline TiO2 impregnated with lanthanide double-decker phthalocyanine complexes

The photocatalytic activity of polycrystalline TiO2 samples impregnated with rare-earth-metal diphthalocyanines was investigated. The 4-nitrophenol (4-NP) photocatalytic degradation in aqueous suspension was used as a probe reaction. Commercial anatase TiO2 was impregnated with home-prepared double-decker phthalocyanine complexes of the lanthanide metals, such as Ce, Pr, Nd, Sm, Ho, and Gd. In particular, the impregnation with Ho, Sm, and Nd complexes, acting as sensitizers, proved beneficial for the photoactivity of the studied systems. Significant improvements of the TiO2-based catalytic system appeared possible in terms of lower impregnation loading, enhanced photoreactivity under solar …

Tecniche tomografiche a raggi X per lo studio dei beni culturali

Phthalocyanines-TiO2: A New Efficient and Tunable Catalyst for CO2 Reduction in Water

Renewable Organic Resources for Fine Chemicals and Photo-sensitizers in TiO2 Based Photocatalytic Processes

Design of new porphyrin/Fe-loaded TiO2 composites for the efficient degradation of 4-nitrophenol by heterogeneous photo Fenton process

Lanthanide Diphthalocyanine – Photosensitizers in TiO2 Hybrid Catalytic Systems: Green Chance for The Nature

Degradation of 4-nitrophenol (4-NP) using Fe-TiO2 as a heterogeneous photo-Fenton catalyst

Photodegradation of 4-Nitrophenol in Aqueous Suspension by Using Polycrystalline TiO2 Samples Impregnated with Lipophilic Porphyrins Obtained from Renewable Resources