Search

Abstract: Hematite (α-Fe2O3) nanostructures with different morphologies have been synthesized by a simple ethylene glycol (EG)/H2O system using FeCl3 and urea as raw materials without adding any additives. Structure and morphology of the products were characterized by powder X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results indicated that the as-prepared samples are α-Fe2O3 microflowers, nanospindles, nanoparticles and nanorhombohedra. The magnetic properties and visible light photocatalytic properties of the products were investigated. The magnetic hysteresis measurements showed interesting magnetic property evolution among these α-Fe2O3 products, which can be attributed to their superstructure or the shape anisotropy. The photocatalytic measurements indicated that the α-Fe2O3 samples exhibit good photocatalytic property for Rhodamine B. [Copyright &y& Elsevier]

Abstract: Nanostructured CuO film was prepared using glass or stainless steel slices as substrate via a simple ammonia-assisted solution route at 60°C. The obtained CuO film was made up of well-crystallized nanosheets of 50–360nm in thickness and 0.7–4.5μm in width. The reaction time and the substrate have significant effects not only on the thickness, width, arrangement of the nanosheets but also on the morphology and the thickness of the films. The CuO film was characterized by SEM, TEM, XRD, IR, and Raman spectroscopy techniques. [Copyright &y& Elsevier]