Results 11 to 20 of about 149,214 (166)

Nióbia magnética como adsorvente de contaminantes orgânicos em meio aquoso: efeito da temperatura e do pH Magnetic niobia as adsorbent of organic contaminants in aqueous medium: effect of temperature and pH

Química Nova, 2008
This work describes novel materials based on pure iron oxide and iron oxide/niobia composite to produce a magnetic adsorbent. These materials were prepared with synthetic iron oxide and characterized by powder XRD, SEM, FTIR, TPR and Mössbauer ...
Maraísa Gonçalves, Luiz Carlos Alves Oliveira, Mário César Guerreiro   +2 more
doaj   +1 more source

Iron oxide synergistic vacuum carbothermal extraction of zinc from zinc sulfide [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
To reduce the issues of high pollutant emissions and lengthy processes in extracting zinc from zinc sulfide ore, a new technical approach involving the synergistic use of iron oxide and vacuum carbothermal reduction to extract zinc from zinc sulfide ore ...
Ma H.-Z., Dang Y.-B., Wang Y.-N., Zeng J.-Y., Zhang X., Guan M.-H., Zhao X.-J.   +6 more
doaj   +1 more source

Evaluation of umbilical cord mesenchymal stem cell labeling with superparamagnetic iron oxide nanoparticles coated with dextran and complexed with Poly-L-lysine [PDF]

Einstein (São Paulo), 2012
OBJECTIVE: The objective of this study was to evaluate the effect of the labeling of umbilical cord vein derived mesenchymal stem cells with superparamagnetic iron oxide nanoparticles coated with dextran and complexed to a non-viral transfector agent ...
Tatiana Taís Sibov, Liza Aya Mabuchi Miyaki, Javier Bustamante Mamani, Luciana Cavalheiro Marti, Luiz Roberto Sardinha, Lorena Favaro Pavon, Daniela Mara de Oliveira, Walter Humberto Cardenas, Lionel Fernel Gamarra   +8 more
doaj   +1 more source

Surface Modification Research of Ultrafine Iron Oxide Red Pigment Powders

Chemical Engineering Transactions, 2017
China as a large export of iron oxide pigments, iron oxide pigments production is out of low level. So in this paper, the effects of different modifiers and dosage on the dispersion of ultrafine iron oxide red pigment in aqueous solution and dry ...
Bei Zhou
doaj   +1 more source

Preparation of iron oxide red by sinking iron slag in zinc smelting hematite process

工程科学学报, 2020
In wet zinc smelting process, iron slag generated by hematite process has high iron content, uniform particle size, and stable thermodynamics, which have evident advantages.
Yuan YANG, Zhi-gan DENG, Chang WEI, Gang FAN, Hui-yang LIU, Tao ZENG, Ying-xu ZHU   +6 more
doaj   +1 more source

Green Synthesis of Iron Oxide Nanoparticles Using Hibiscus rosa sinensis Flowers and Their Antibacterial Activity

Journal of Nanotechnology, 2022
Iron oxide nanoparticles (α- Fe2O3) were synthesized using an unconventional, eco-friendly technique utilizing a Hibiscus rosa sinensis flower (common name, China rose) extract as a reducer and stabilizer agent. The microwave method was successfully used
F. Buarki, H. AbuHassan, F. Al Hannan, F. Z. Henari   +3 more
doaj   +1 more source

The iron-oxidizing proteobacteria [PDF]

Microbiology, 2011
The ‘iron bacteria’ are a collection of morphologically and phylogenetically heterogeneous prokaryotes. They include some of the first micro-organisms to be observed and described, and continue to be the subject of a considerable body of fundamental and applied microbiological research.
Sabrina, Hedrich, Michael, Schlömann, D Barrie, Johnson   +2 more
openaire   +2 more sources

A Facile Route for the Preparation of Monodisperse Iron nitride at Silica Core/shell Nanostructures

Frontiers in Bioengineering and Biotechnology, 2021
Uniform-sized iron oxide nanoparticles obtained from the solution phase thermal decomposition of the iron-oleate complex were encapsulated inside the silica shell by the reverse microemulsion technique, and then thermal treatment under NH3 to transfer ...
Hoonsub Kim, Pyung Won Im, Pyung Won Im, Yuanzhe Piao, Yuanzhe Piao   +4 more
doaj   +1 more source

Electrochemical Properties of Iron Oxide Decorated Activated Carbon Cloth as a Binder-Free Flexible Electrode [PDF]

Materials Research, 2022
The oxidation and deposition of transition metal oxides on porous carbon precursor materials strongly influence the final performance of supercapacitor electrodes.
M. G. C. Munhoz, A. C. Rodrigues-Siqueli, B. C. S. Fonseca, J. S. Marcuzzo, J. T. Matsushima, G. F. B. Lenz e Silva, M. R. Baldan, G. Amaral-Labat   +7 more
doaj   +1 more source

Synthesis and heating effect of iron/iron oxide composite and iron oxide nanoparticles [PDF]

SPIE Proceedings, 2007
Fe/Fe oxide nanoparticles, in which the core consists of metallic Fe and the shell is composed of Fe oxides, were obtained by reduction of an aqueous solution of FeCl3 within a NaBH4 solution, or, using a water-in-oil micro-emulsion with CTAB as the surfactant.
Q, Zeng, I, Baker, J A, Loudis, Y F, Liao, P J, Hoopes   +4 more
openaire   +2 more sources