Facile Preparation of PVDF/CoFeO-ZnO Hybrid Membranes for Water Depollution.

In this investigation, CoFeO-PVDF and CoFeO-ZnO-PVDF hybrid membranes were prepared using a modified phase inversion method in which a magnetic field was applied during the casting process to ensure a uniform distribution of nanomaterials on the membrane surface. Thus, better absorption of light and increased participation of nanoparticles in the photodegradation process is ensured. The influence of nanomaterials on the crystalline structure, surface morphology, and hydrophilicity properties of the PVDF membrane was investigated.

The effect of 100-200 nm ZnO and TiO nanoparticles on the in vitro-grown soybean plants.

Engineered nanomaterials are increasingly used in everyday life applications and, in consequence, significant amounts are being released into the environment. From soil, water, and air they can reach the organelles of edible plants, potentially impacting the food chain and human health. The potential environmental and health impact of these nanoscale materials is of public concern.

Photocatalytic activity of SnO-TiO composite nanoparticles modified with PVP.

Interface modified SnO-TiO composite nanoparticles were produced in two stages: first SnO nanoparticles were prepared by chemical precipitation in the presence of polyvinylpyrrolidone (PVP) and thermally treated at 500 °C then TiO was deposited on top of modified SnO and followed by a final annealing. As a consequence SnO-TiO composite nanoparticles get crystallized while PVP is decomposed into monomer units and other attached smaller molecular fragments. TGA coupled with FT-IR spectroscopy confirmed the presence of monomers and other moieties as a result of PVP thermal fragmentation.