Journal ArticleDOI
A new method for the identification and quantification of magnetite-maghemite mixture using conventional X-ray diffraction technique.
TLDR
A convenient method is proposed to assess the presence of magnetite-maghemite mixture and to further quantify its phase composition using the conventional peak deconvolution technique and it is believed that the proposed method would be a convenient tool for the study of the magnetites-magemite mixture which otherwise requires highly sophisticated equipments and techniques.About:
This article is published in Talanta.The article was published on 2012-05-30. It has received 273 citations till now. The article focuses on the topics: Maghemite & Iron oxide nanoparticles.read more
Citations
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Journal ArticleDOI
Magnetite and Green Rust: Synthesis, Properties, and Environmental Applications of Mixed-Valent Iron Minerals
Muhammad Usman,Muhammad Usman,James M. Byrne,A. Chaudhary,A. Chaudhary,Silvia Orsetti,Khalil Hanna,Christian Ruby,Andreas Kappler,Stefan B. Haderlein +9 more
TL;DR: The aim is to present a detailed overview of the key aspects related to these mineral phases which can be used as an important resource for researchers working in a diverse range of fields dealing with mixed-valent iron minerals.
Journal ArticleDOI
CO2 hydrogenation to lower olefins on a high surface area K-promoted bulk Fe-catalyst
Carlo Giorgio Visconti,Michela Martinelli,Leonardo Falbo,Antonia Infantes-Molina,Antonia Infantes-Molina,Luca Lietti,Pio Forzatti,Gaetano Iaquaniello,Emma Palo,Barbara Picutti,Fabio Brignoli +10 more
TL;DR: In this paper, a high surface area K-promoted iron-based catalyst is prepared by thermal decomposition of ammonium glycolate complexes, followed by impregnation with an aqueous solution of potassium carbonate, drying and calcination.
Journal ArticleDOI
Fast nitrate and fluoride adsorption and magnetic separation from water on α-Fe2O3 and Fe3O4 dispersed on Douglas fir biochar
TL;DR: α-Fe2O3 and Fe3O4 dispersed on high surface area Douglas fir biochar was prepared for fast nitrate and fluoride ion removal from water using magnetic separations and adsorption capacities were higher than those reported for other biochar and iron oxide adsorbents.
Journal ArticleDOI
Magnetite Impregnation Effects on the Sorbent Properties of Activated Carbons and Biochars
Zhantao Han,Badruddeen Sani,Wojciech Mrozik,Martin Obst,Barbara Beckingham,Hrissi K. Karapanagioti,David Werner +6 more
TL;DR: Strong sorption of the hydrophobic organic contaminant phenanthrene to the activated carbon or biochar surfaces was maintained following magnetite impregnation, while phenol sorption was diminished, probably due to enhanced carbon oxidation.
Journal ArticleDOI
Fe(II) Redox Chemistry in the Environment.
Jianzhi Huang,Adele M. Jones,T. David Waite,Yiling Chen,Xiaopeng Huang,Kevin M. Rosso,Andreas Kappler,Muammar Mansor,Paul G. Tratnyek,Huichun Zhang +9 more
TL;DR: In this paper, the authors present a comprehensive review of the redox reactivity of four types of Fe(II) species, including aqueous Fe, Fe complexed with ligands, minerals bearing structural Fe, and sorbed Fe on mineral oxide surfaces.
References
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Journal ArticleDOI
Characterization of aqueous dispersions of Fe3O4 nanoparticles and their biomedical applications
Fong Yu Cheng,Chia Hao Su,Yu Sheng Yang,Chen-Sheng Yeh,Chiau Yuang Tsai,Chao Liang Wu,Ming Ting Wu,Dar-Bin Shieh +7 more
TL;DR: The preliminary experiments demonstrated the potential of the as-synthesized magnetite material in functional molecular imaging for biomedical research and clinical diagnosis by combining the advantage of MRI signal contrast, the non-polymer-coated surface chemistry for distinct bioconjugation and the homogenous nanometer size for better controlled biodistribution.
Journal ArticleDOI
Synthesis of monodisperse iron oxide nanocrystals by thermal decomposition of iron carboxylate salts
TL;DR: Iron oxide (Fe(3)O(4), magnetite) nanocrystals of 6 to 30 nm with narrow size distributions (sigma = 5-10%) were prepared by the pyrolysis of iron carboxylate salts.
Journal ArticleDOI
Hydrothermal synthesis of monodisperse magnetite nanoparticles
T. J. Daou,Geneviève Pourroy,Sylvie Begin-Colin,Jean-Marc Greneche,Corinne Ulhaq-Bouillet,P. Légaré,P. Bernhardt,Cédric Leuvrey,Guillaume Rogez +8 more
TL;DR: In this article, magnetite particles with an average size of 39 nm and good monodispersity have been synthesized by coprecipitation at 70 °C from ferrous Fe2+ and ferric Fe3+ ions by a (N(CH3)4OH) solution, followed by hydrothermal treatment at 250 °C.
Journal ArticleDOI
Easy Synthesis and Magnetic Properties of Iron Oxide Nanoparticles
Kyoungja Woo,Jangwon Hong,Sungmoon Choi,Hae-Weon Lee,Jae-Pyoung Ahn,and Chul Sung Kim,Sang Won Lee +6 more
TL;DR: In this article, it was suggested that the intermediate iron oxide nanoparticles (before aeration) were formed by the competing processes of oxidation and crystal growth after decomposition of Fe(CO)5.
Journal ArticleDOI
Sonochemical synthesis and characterization of pure nanometer-sized Fe3O4 particles
TL;DR: In this paper, a sonochemical synthesis of pure nanometer-size Fe3O4 powder with particle size of ca 10 nm is reported, which can be simply synthesized by sonication of iron(II)acetate in water under an argon atmosphere.
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