With iron (hydr)oxide minerals (goethite, hematite, lepidocrocite, and magnetite) and with siderite, the e-values for CCl4 dehalogenation were remarkably similar (-29 +/- 3 per thousand). Because this value matches well with the theoretical estimates for the cleavage of an aliphatic C-Cl bond...
Nanomaterials offer excellent antifouling capabilities for many membranes and applications. Iron oxide gives iron immobilised in natural grain-based carbon foam both mechanical strength and stability. Since adsorption is a surface event, the nanoparticles’ presence increases the surface area23. If an abun...
The oxide specimens were reduced in streams of pure hydrogen or carbon monoxide at temperatures between 700° and 1,200°C. The reduction was followed by measuring the sample weight during the reaction. Reduction rates were studied at system pressures of 1 and 2 at. The samples reduced step ...
the prepared iron oxide HGs are modified to offer important merits: (i) high specific surface area for available active sites; (ii) hierarchical porosity for short diffusion pathways; (iii) control of Fe2+/Fe3+ redox system for high electrocatalytic activity; and (iv) defective carbon formati...
Hydrogenation of carbon dioxide was carried out over reduced Fe 3 O 4 catalyst. Effect of reduction temperature of the catalyst, reaction temperature, space velocity, and component of feed gas were examined on the catalyst. From various experiments, the proper conditions for the hydrogenation of ca...
To evaluate the role this oxide film plays in the reduction of chlorinated methanes, carbon tetrachloride (CCl ) degradation by Fe was studied under the influence of various anions, ligands, and initial CCl concentrations ([ P] ). Over the range of conditions examined in these batch ...
To evaluate the role this oxide film plays in the reduction of chlorinated methanes, carbon tetrachloride (CCl4) degradation by Fe0 was studied under the influence of various anions, ligands, and initial CCl4 concentrations ([P]o). Over the range of conditions examined in these batch ...
Superparamagnetic multi-walled carbon nanotubes (mMWCNTs) were prepared by filling multi-walled carbon nanotubes (MWCNTs) with iron oxide, and further modified by linking polyamidoamine (PAMAM) dendrimers (mMWCNTs-PAMAM) on the surface. Then, mMWCNTs-PAMAM was employed as the carrier and successfully...
The sulfidation of carbon-supported iron oxide catalysts was studied by means of in-situ Mössbauer spectroscopy at temperatures down to 4.2 K. The catalysts were dried in two different ways and then sulfided in a flow of 10% H2S in H2 at temperatures between 293 and 773 K. Thiophene hydr...
Adsorption process is an effective and popular method for removal of fluoride, so the purpose of this research was magnetizing multiwall carbon nanotubes with nano iron oxide and using it as an adsorbent for fluoride removal from aqueous solution. Materials and methods: Co-precipitation method used ...