14 documents found, page 1 of 2

Enhanced performance of solid polymer electrolytes combining poly(vinylidene fl...

The search for sustainable and high-performance materials for lithium-ion batteries is leading to significant advances in solid polymer electrolyte (SPE) technology. However, the current drawbacks of this approach prove the need for further research and development in the field. Herein, novel ternary solid polymer electrolytes have been developed using varying loads of MOF-808 metal-organic framework and [BMIM]...

Iron oxide/poly (vinylidene fluoride-hexafluoropropylene) membranes for lithium...

The here presented experiments report on bi-functional iron oxide (Fe3O4)/poly (vinylidene fluoride-hexafluoropropylene) - PVDF-HFP porous membranes prepared through thermal-induced phase separation (TIPS) for As(III) and As(V) adsorption and posterior second life as a lithium-ion battery (LIB) separator considering a circular economy paradigm. The bi-functional membranes' physical-chemical properties, their ab...

Reusable nanocomposite membranes for highly efficient arsenite and arsenate dua...

Nanocomposite membranes (NCMs) of poly(vinylidene fluoride-hexafluoropropylene), PVDF-HFP, with different yttrium carbonate and magnetite loadings, are prepared, and their dual adsorption capacity over neutral arsenite and anionic arsenate species is evaluated. The nanoparticles (NPs) and the corresponding NCMs are fully characterized in morphology, microstructure, thermal, and surface properties. The nanocompo...

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...

Comparative performance and ecotoxicity assessment of Y2(CO3)3, ZnO/TiO2, and F...

The application of nanomaterials to remove arsenic (As) from the water represents one of the 21 most promising remediation methods nowadays. In this study, three active materials, including 22 Y2(CO3)3), ZnO/TiO2, and Fe3O4, with different structural and morphological properties, were 23 evaluated for their As(V) adsorption capacity in contaminated water. Thus, the adsorption 24 behaviour was evaluated, includi...

Reusable nanocomposite-filters for arsenite and arsenate dual real effluents re...

A membrane reactor (MR), combining adsorption and membrane separation processes, represents a new hybrid and promising technology for arsenic-contaminated water treatment. This work reports on nanocomposite filters (NCFs) based on poly (vinylidene fluoride-hexafluoropropylene), PVDF-HFP, containing yttrium carbonate (Y2(CO3)3) and magnetite (Fe3O4) to adsorb neutral and anionic species of As(III) and As(V), in ...

Reusable composite membranes for highly efficient chromium removal from real wa...

Hexavalent chromium water contamination is still a worldwide concern because this highly mobile ion can cause carcinogenic effects on animals and humans. Therefore, there is an intense research on new active and cost-effective sorbents for Cr(VI), but most of them still exhibit a critical limitation: their powdered nature makes their recovery from water cost and energyconsuming. In this work, Cr(VI) nano-sorben...

Crystal morphology control of synthetic giniite for enhanced photo-Fenton activ...

Metronidazole (MNZ) is a recalcitrant antibiotic with toxic and carcinogenic effects in aquatic environments. In this work, Fe-5(FO4)(4)(OH)(3)center dot 2H(2)O (giniite) particles were synthesised with three different alkaline cations (Li+, Na+ and K+) and used as Fenton catalysts for MNZ removal. It is shown that the addition of different cations during the hydrothermal synthesis process promote different mor...

Reusable ag@tio2-based photocatalytic nanocomposite membranes for solar degrada...

Two significant limitations of using TiO2 nanoparticles for water treatment applications are reduced photocatalytic activity under visible radiation and difficulty recovering the particles after use. In this study, round-shaped Ag@TiO2 nanocomposites with a ≈21 nm diameter and a bandgap energy of 2.8 eV were synthesised by a deposition-precipitation method. These nanocomposites were immobilised into a porous po...

Studies on the response of a water-Cherenkov detector of the Pierre Auger Obser...