Recently, frequent discharge of water-ladened emerging organic pollutants such as Bisphenol A has elicited serious concern due to its pernicious effects on public health and the ecological environment. In this study, hematite nanoparticles (Fe2O3) were synthesized via sol–gel auto-combustion technique incorporated a nanofiller fabricate PVDF-PEG nanocomposite hollow fibre membrane with enhanced...

The corrosion mechanism and characteristics of steel in typical atmospheric environments directly affect the rationality protection methods. This study investigates evolution law Q235 that has been exposed to urban industrial atmosphere for seven years. mass loss is used dynamics analysis. rust layers have characterized by SEM, EDS, XRD. Finally, was analyzed through a combination electrochemic...

Tujuan penelitian untuk mengetahui (1) pengaruh penambahan Fe3O4 terhadap mikrostruktur pada PANI/Ag/Fe3O4 (2) konduktivitas film PANI/Ag-Fe3O4 (3) sifat magneto elektrik (4) elektro optik PANI-Ag-Fe3O4. Nanokomposit PANI-Ag-Fe3O4 telah diteliti sebagai aplikasi devais elektronik, dimana PANI menjadi pilihan karena ramah lingkungan, stabil dan potensi yang menjanjikan. Dalam ini berperan matrik...

Functionally graded epoxy composites with various concentration profiles of Fe3O4@TiO2 core–shell nanoparticles (NPs) were synthetized and characterized, with focus on their antibacterial properties. The NPs consisted of rutile, anatase, magnetite and hematite. Graded composites were produced starting with homogeneous 2 vol% to 12 vol% NPs suspensions using a magnetophorese process, leading to ...

Functionalized magnetic nanoparticles (MNPs) have been characterized by laser desorption/ionization mass spectrometry (LDI-MS). Quantitative information about surface ligand composition and structure for monolayer and mixed monolayer protected Fe3O4 and FePt NPs can be obtained rapidly with very little sample consumption.

We demonstrate that crown ether-assisted ligand replacement on Fe3O4 NPs using halide salts leads to quantitative stripping of an existing stabilizer shell with unprecedented (complete) efficiency; this allows subsequent re-grafting of functional ligands at maximal surface density. The mechanism of the anion-driven ligand replacement is elucidated by varying the halide salt and the versatility ...

UNLABELLED In this work, the magnetic properties of silicon nanotubes (SiNTs) filled with Fe3O4 nanoparticles (NPs) are investigated. SiNTs with different wall thicknesses of 10 and 70 nm and an inner diameter of approximately 50 nm are prepared and filled with superparamagnetic iron oxide nanoparticles of 4 and 10 nm in diameter. The infiltration process of the NPs into the tubes and dependenc...

Electric arc furnace dust (EAFD) which is accumulated in large amounts world-wide contains hematite (Fe2O3) and significant quantities of magnetite (Fe3O4). Waste polyvinyl chloride (PVC) also poses a great environmental threat aside to EAFD. Both these wastes have shown potential for their co-thermal treatment metal extraction, thus minimising footprint. Herein, an investigation on the thermal...

Cryogels from noble metal NPs have proven to be highly efficient catalysts due their high specific surface area which increases the mass transfer channels and catalytic active sites. By using oxides as co-catalysts, costs of material can significantly reduced, while activity remain same or even improve synergetic effects. In this work, we synthesize different cryogel thin films supported on mod...

The crystal structures of different forms of TiO2 and those of BaTiO3, ZnO, SnO2, WO3, CuO, Fe2O3, Fe3O4, ZrO2 and Al2O3 nanoparticles have been deduced by powder X-ray diffraction. Their optical edges have been obtained by UV-visible diffuse reflectance spectra. The photocatalytic activities of these oxides and also those of SiO2 and SiO2 porous to oxidize iodide ion have been determined and c...