Results 31 to 40 of about 233,674 (199)

The association of cobalt with iron and manganese (oxyhydr)oxides in marine sediment. [PDF]

, 2010
Formation and dissolution of authigenic Fe and Mn (oxyhydr)oxides influence cycling of trace metals in oxic/suboxic surface sediments.We used the diffusive gradients in thin films technique (DGT) to estimate the association of cobalt with iron and ...
Davison, William, Hamilton-Taylor, John, Stockdale, Anthony, Zhang, Hao   +3 more
core   +1 more source

Effects of Basicity and MgO in Slag on the Behaviors of Smelting Vanadium Titanomagnetite in the Direct Reduction-Electric Furnace Process

Metals, 2016
The effects of basicity and MgO content on reduction behavior and separation of iron and slag during smelting vanadium titanomagnetite by electric furnace were investigated.
Tao Jiang, Shuai Wang, Yufeng Guo, Feng Chen, Fuqiang Zheng   +4 more
doaj   +1 more source

Modeling the iron oxides and oxyhydroxides for the prediction of environmentally sensitive phase transformations

, 2011
Iron oxides and oxyhydroxides are challenging to model computationally as competing phases may differ in formation energies by only several kJ/mol, they undergo magnetization transitions with temperature, their structures may contain partially occupied ...
A. F. Gualtieri, Amanda S. Barnard, C. Kittel, D. C. Golden, Haibo Guo, J. F. Nye, J. Majzlan, K. M. Rosso, R. M. Cornell, T. M. Henderson, T. Nagai   +10 more
core   +1 more source

Interaction between Iron-Aluminum Oxides and Organic Carbon in Soils with Different Parent Materials and Its Influence on Heavy Metal Migration

Yankuang ceshi
Iron-aluminum oxides, as significant mineral components, exhibit a notable influence on the organic carbon content in soil. The interaction between these two elements constitutes a crucial aspect of soil environmental processes, particularly in the ...
Yunhong SONG, Kai LIU, Huimin DAI, Fengchao YANG, Zhehuan ZHANG   +4 more
doaj   +1 more source

Interactions of proteins with biogenic iron oxyhydroxides and a new culturing technique to increase biomass yields of neutrophilic, iron-oxidizing bacteria

Frontiers in Microbiology, 2014
Neutrophilic, bacterial iron-oxidation remains one of the least understood biological reactions to date. One of the reasons it remains under-studied is because there are inherent problems with working with iron-oxidizing bacteria (FeOB), including low ...
Roman eBarco, Katrina eEdwards
doaj   +1 more source

Photoreductive Dissolution of Iron Oxides Trapped in Ice and Its Environmental Implications [PDF]

, 2010
The availability of iron has been thought to be a main limiting factor for the productivity of phytoplankton and related with the uptake of atmospheric CO_2 and algal blooms in fresh and sea waters. In this work, the formation of bioavailable iron (Fe(II)
Choi, Wonyong, Hoffmann, Michael R., Kim, Kitae, Park, Byong-Kwon, Yoon, Ho-Il   +4 more
core   +1 more source

Synthesis, Characterization, and Evaluation of Boron-Doped Iron Oxides for the Photocatalytic Degradation of Atrazine under Visible Light

International Journal of Photoenergy, 2012
Photocatalytic degradation of atrazine by boron-doped iron oxides under visible light irradiation was investigated. In this work, boron-doped goethite and hematite were successfully prepared by sol-gel method with trimethylborate as boron precursor.
Shan Hu, Guanglong Liu, Duanwei Zhu, Chao Chen, Shuijiao Liao   +4 more
doaj   +1 more source

Carbon Nanotubes by a CVD Method. Part I: Synthesis and Characterization of the (Mg, Fe)O Catalysts [PDF]

, 2002
The controlled synthesis of carbon nanotubes by chemical vapor deposition requires tailored and wellcharacterized catalyst materials. We attempted to synthesize Mg1-xFexO oxide solid solutions by the combustion route, with the aim of performing a ...
Alvarez W. E., Bacsa R. R., Bacsa R. R., Berthet A. Ph.D., Bhide V. G., Blank S. L., Boudart M., Brynestad J., Carles V., Coquay P., Coquay P., De Bakker P. Ph.D., De Grave E., Flahaut E., Flahaut E., Govindaraj A., Hafner J. H., Herrera J. E., Holland T. J. B., Jain S. R., Jing J., Kingsley J. J., Krawitz A., Laurent, Laurent, Li Y., Patil K. C., Peigney A., Peigney A., Peigney A., Perez A., Quénard O., Simkin D. J., Topsoe H., Trinel-Dufour M. C., Vandenberghe R. E., Waychunas G. A., Woods K. N., Yamaguchi G., Zhang Y.   +39 more
core   +3 more sources

Heterogeneous Photo-Fenton Reaction Catalyzed by Nanosized Iron Oxides for Water Treatment

International Journal of Photoenergy, 2012
Great efforts have been exerted in overcoming the drawbacks of the Fenton reaction for water treatment applications. The drawbacks include pH confinement, handling of iron sludge, slow regeneration of Fe(II), and so forth.
Chuan Wang, Hong Liu, Zhimin Sun
doaj   +1 more source

Khirbet al-Batrawy ceramics. A systematic mineralogical and petrographic study for investigating the material culture [PDF]

, 2017
The present paper reports the results of a mineralogical and petrographic study focused on the archaeometric characterization of Early Bronze Age pottery from the archaeological site of Khirbet al-Batrawy (Jordan), dated between 3000 and 2000 BC. Optical
Medeghini, Laura, Nigro, Lorenzo
core   +1 more source