18 documents found, page 1 of 2

Valorization of biomass waste into sustainable aviation fuels: a life cycle ass...

Nanocomposite PVDF/TiO₂ Photocatalytic Membranes for Micropollutant ...

In this study, a mixed-matrix method was used to prepare PVDF polymeric membranes with different amounts of TiO2 P25 photocatalyst embedded, which were employed in filtration processes in the presence of UV radiation (LED, peak emission at 375 nm) to eliminate two aqueous micropollutants (MPs) used as model compounds (venlafaxine and metoprolol). The obtained membranes were characterized to gain insights into t...

Spirulina-based carbon materials as adsorbents for drinking water taste and odo...

The sensory quality of drinking water, and particularly its taste and odor (T&O) is a key determinant of consumer acceptability, as consumers evaluate water by their senses. Some of the conventional treatment processes to control compounds which impart unpleasant T&O have limitations because of their low efficiency and/or high costs. Therefore, there is a great need to develop an effective process for removing ...

The role of added oxidising agents in assisting the photocatalytic treatment of...

Olive mill wastewaters (OMW) consist of high organic contents and are harmful to aquatic and terrestrial biota. Heterogeneous photocatalysis is a technology that can be operated under mild conditions to remove pollutants in the liquid phase. In the present work, graphitic carbon nitride (g-C3N4, hereafter referred to as GCN) is studied for the first time as a metal-free photocatalyst for OMW treatment. The inte...

Comprehensive characterization and development of multi-core shell superparamag...

The nanoparticles designed for application in cancer treatment should have biocompatibility, colloidal stability and triggered release at tumor sites. Magnetic nanoparticles arise as an interesting option to be used as drug nanocarriers, considering the possibility of driving nanoparticles to the correct delivery site and exploring different triggers to achieve such accomplishment. In this study, nickel ferrite...

Carbon nitride-PVDF photocatalytic membranes for visible-light degradation of v...

Metal-free carbon nitride-based membranes were prepared by embedding bulk or exfoliated graphitic carbon nitride (g-C3N4) photocatalysts in a polyvinylidene fluoride (PVDF) matrix. Supported membranes were also fabricated by immobilising these photocatalysts on a polytetrafluoroethylene (PTFE) substrate. The membranes were tested for venlafaxine (VFX) degradation at a feed concentration of 250 mu g L-1 under co...

Selective denitrification of simulated oily wastewater by oxidation using Janus...

The intense industrial development has resulted in several consequences for human and environmental health, including the increased discharge of oily products in water bodies. Oily products are widely used in industry, often bearing an associated high cost. Finding alternatives to treat oily wastewater aiming at recovering oily and water phases is an approach allowing recovery of products of economic interest. ...

Application of g-C3N4-PVDF membrane for the photocatalytic degradation of micro...

The combination of photocatalysis with membrane separation technology allows to mitigate potential membrane fouling while degrading the organic micropollutants in water. This work is focused on the immobilization of a gC3N4 promising photocatalyst, in the form of a g-C3N4-PVDF polymeric membrane, for the elimination of representative pharmaceutical substances from complex water matrices in a continuous flow mod...

Pd and Pd-Cu supported on different carbon materials and immobilized as flow-th...

Powdered catalysts are commonly used in lab-scale tests for the catalytic reduction of oxoanions in drinking water, but their powder nature limits their application at full scale. In this work, Pd and Pd-Cu catalysts (5% wt.) supported on carbon materials with different structural properties, in powder form, were used to prepare catalytic membranes that were tested in a reactor with flow-through configuration (...

3D structured photocatalysts for sustainable H2O2 generation from saccharides d...

The possibility of using hydrogen peroxide (H2O2) as a chemical oxidizer or as a green liquid fuel to produce electricity has encouraged both the scientific and industrial communities to investigate green technologies aimed at the sustainability of the production process. In particular, the light-induced synthesis of H2O2 from water and oxygen has attracted significant attention using optical semiconductors.An ...