8 documents found, page 1 of 1

Hybrid TiO2:Au nanostars based polymeric membranes for photocatalytic degradati...

Antibiotics represent one increasingly harmful type of contaminant of emerging concern in treated and non-treated water. They cause the generation of antibiotic-multiresistant organisms, one of the major challenges in current medicine. Plasmonic-photocatalysis using solar energy represents a promising solution for their removal with low energy consumption. Its successful application requires the improvement of ...

Development of a plasma activated multifunctional polyester fabric using zinc o...

Multifunctional hybrid membranes for photocatalytic and adsorptive removal of w...

The focus of this work lies on the production of a multifunctional materials that allows the combination of photocatalysis and adsorption in a unique polymeric substrate. For this purpose, Au/TiO2 and Y2(CO3)3 nanoparticles were immobilised on a poly (vinylidene fluoride hexafluoropropylene), (PVDF-HFP), substrate, and the characterisation of these materials was performed, as well as the pollutant removal effic...

Size effect in hybrid TiO2:Au nanostars for photocatalytic water remediation ap...

TiO₂:Au-based photocatalysis represents a promising alternative to remove contaminants of emerging concern (CECs) from wastewater under sunlight irradiation. However, spherical Au nanoparticles, generally used to sensitize TiO₂, still limit the photocatalytic spectral band to the 520 nm region, neglecting a high part of sun radiation. Here, a ligand-free synthesis of TiO₂:Au nan...

UV-light assisted synthesis of high silica faujasite-type of zeolites

Currently, the direct synthesis of faujasite-type (FAU) zeolites with Si/Al ratios greater than 3 depends on organic or inorganic additives. Here, we report the first additive-free synthesis of faujasite with Si/Al ratios greater than 3 using ultraviolet (UV) light assistance. The obtained zeolite shows excellent catalytic performance comparable to the commercial zeolite Y.

Development of photocatalytic 3D-Printed cementitious mortars: influence of the...

This work evaluated the photocatalytic activity of 3D-printed cementitious mortar specimens functionalized with TiO2 nanoparticles to obtain a multifunctional and smart concrete. This research aims to assess the influence of different parameters related to the functionalization process such as adsorption, coating time gaps, and coating rates on the degradation efficiency of the functionalized cementitious speci...

Photocatalytic and antimicrobial multifunctional nanocomposite membranes for em...

Emerging pollutants represent a new global problem for water quality. As these compounds get into the environment, they cause severe threats to aquatic environments and human health and are typically resistant to conventional wastewater treatments. In this work, TiO2 nanoparticles surface was functionalized with silver (Ag) nanoparticles, and solvent cast and electrospun membranes of poly (vinylidene fluoride-c...

Caracterização estrutural e mecânica de multicamadas de TiN/ZrN depositadas por...

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