Benzo(a)pyrene (BP), prepared as a suspension of fine crystalline particles attached to particles of ferric oxide in 0.9% NaCl solution, was administered by intratracheal instillation to Syrian golden hamsters. A single administration of 37.5 mg BP with 12.5 mg ferric oxide in 0.5 ml 0.9% NaCl solution induced five bronchogenic carcinomas and five histologically benign respiratory tumors in a t...

The kinetics of photoelectrochemical (PEC) oxidation of methanol, as a model organic substrate, on α-Fe2O3 photoanodes are studied using photoinduced absorption spectroscopy and transient photocurrent measurements. Methanol is oxidized on α-Fe2O3 to formaldehyde with near unity Faradaic efficiency. A rate law analysis under quasi-steady-state conditions of PEC methanol oxidation indicates that ...

Using the thermal oxidation of iron, we show that the growth morphologies of one-dimensional nanostructures of hematite (a-Fe2O3) can be tuned by varying the oxygen gas pressure. It is found that the oxidation at the oxygen gas pressures of ;0.1 Torr is dominated by the growth of hematite nanobelts, whereas oxidation at pressure near 200 Torr is dominated by the growth of hematite nanowires. De...

In this study, we investigated the degradation of amido black dye in an aqueous solution using ultra-violet (UV) light catalyzed by iron oxide nanoparticles (nano-Fe). The nano-Fe was synthesized sodium borohydride reduction ferric chloride and characterized scanning electron microscopy (SEM), X-ray diffraction (XRD), fluorescence spectrophotometry (XRF). SEM showed regular spherical particles,...

Nanofertilizers can be used as potential contenders to provide macro- and micronutrients plants. Specifically, iron-oxide-based engineered nanoparticles are promising candidates for next-generation iron-deficiency fertilizers. Aiming investigate the effect of Fe2O3 magnetic on plant germination growth, alfalfa seeds were presoaked by a series concentrations (0, 50, 100, 150, 200 mg/L) NPs in th...

Reduction of iron ores with hydrogen is a solution to replace fossil fuels. For this reason, it important discuss previous discrepancies. Some studies suggest rate minimum respect temperature. Our research work indicates that can be avoided. Thermogravimetric isothermal reduction experiments were carried out from 600 1050 °C pure reagent ferric oxide and using tubular furnace. The morphology ch...