Hierarchical porous iron oxide films with different morphologies have for the first time been fabricated through hydrothermal reactions between an iron substrate and iodine powder in water or ethanol, which can be explained by a mechanism analogous to the Kirkendall effect.

The magnetic properties experiments are designed to help identify the magnetic minerals in the dust and rocks on Mars-and to determine whether liquid water was involved in the formation and alteration of these magnetic minerals. Almost all of the dust particles suspended in the martian atmosphere must contain ferrimagnetic minerals (such as maghemite or magnetite) in an amount of approximately ...

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This work presents the development of a facile ligand-assisted hydrothermal reaction for the preparation of NIR-activated Fe(3)O(4) nanostructures that can directly upgrade the iron oxide with MR contrast ability to be a MRI/photothermal theranostic agent.

the textile industry has long been one of the largest of water users and nolluters and there has been little success in developing low cost treatment methods , which the industry urgently needs to lessen the pollution loads it discharges to streams. the obiective of this preparatory study was to determinen the effects o f coagulants and aid coagulant s as alum, ferrous sulfate , ferric sulfate ...

An effective approach to synthesizing crystalline iron oxide nanoplates (~3 nm thick) and nanoflowers composed of ~5 nm small grains was reported. The formation of different-shaped nanoparticles in a similar system was achieved by controlling the nucleus concentration and growth rate.