Results 121 to 130 of about 127,670 (294)

Determination of the Magnetic Material Composition in Magnetite Ore and Processability Evaluation

Yankuang ceshi, 2013
Magnetite samples were magnetically separated with a magnetic tube and artificial magnetic separation. The contents of TFe, P, S, V2O5, TiO2, SiO2, Al2O3, CaO, MgO, Sn, Cu, Pb and Zn in the magnetite samples were determined.
BAN Jun-sheng, REN Jin-xin, LIU LIU Gui-zhen, ZANG Miao-miao, YANG Ying-xue, WANG Ye   +5 more
doaj  

Deposition behaviors and interfacial interaction mechanism between carboxyl-modified polystyrene nanoplastics and magnetite in aquatic environment

Ecotoxicology and Environmental Safety
In aquatic environments, the deposition behaviors of nanoplastics (NPs) are closely associated with interfacial interaction between NPs and iron (hydr)oxides minerals, which are typically coupled with solution chemistry and organic matter.
Meimei Ran, Xin Nie, Jingxin Wang, Ruiyin Xie, Xiaoping Lin, Hanjun Zhu, Quan Wan, Yuhong Fu   +7 more
doaj   +1 more source

Impact of conductive magnetite nanoparticles and anode polarization on glucose fermentation

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Electrically conductive materials and electrochemical stimulation strategies are increasingly explored to steer microbial fermentation towards desired metabolic outputs. These approaches also hold remarkable potential to couple wastewater treatment (WWT) to the production of value‐added compounds, in turn enhancing environmental ...
Clara Marandola, Silvia Bolognesi, Matteo Tucci, Marco Resitano, Carolina Cruz Viggi, Sebastià Puig, Marianna Villano   +6 more
wiley   +1 more source

Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method

AIP Advances
We investigated the use of magnetite, a type of iron oxide with low environmental impact, as a mid-infrared detector. Mid-infrared rays with a wavelength of 10.6 μm were irradiated to magnetite thin films at regular intervals using a chopper, and changes
Kazuma Iwasaki, Seishi Abe, Tadao Tanabe
doaj   +1 more source

Electrochemical Monitoring of Steel Corrosion in NS4 Solution Under Cathodic Protection Environment: Insights of Electrochemical Impedance Spectroscopy

Materials and Corrosion, EarlyView.
Electrochemical impedance spectroscopy (EIS) monitored corrosion on mild steel under cathodic protection in soil‐like conditions. CP reduced corrosion from 410 to 7 µm/yr, shifting the mechanism from mixed activation–diffusion to activation‐controlled, enabling protective calcareous and oxide film formation.
Mandlenkosi George Robert Mahlobo, Tumelo Wordsworth Poloko Seadira, Major Melusi Mabuza, Peter Apata Olubambi   +3 more
wiley   +1 more source

Biophysical evidence that frostbite is triggered on nanocrystals of biogenic magnetite in garlic cloves (Allium sativum)

Communications Biology
Trace levels of biologically precipitated magnetite (Fe3O4) nanocrystals are present in the tissues of many living organisms, including those of plants.
Atsuko Kobayashi, Daisuke Tanaka, Hironori Hidaka, Kasumi Sakurai, Kotaro Kawai, Toyohiro Kato, Kumiko Kihara, Joseph L. Kirschvink   +7 more
doaj   +1 more source

Application of Electrical Resistance Probes for Corrosion Monitoring and Cathodic Protection Assessment of Offshore Structures

Materials and Corrosion, EarlyView.
A novel thick‐track electrical resistance probe with five sensing tracks was developed for offshore corrosion monitoring. The probe provides reliable, real‐time corrosion‐rate measurements in natural seawater. Corrosion‐rate trends showed strong agreement with weight‐loss coupon measurements.
Mohammad Hassanzadeh, Nicolas Larché, Erwan Diler, Johan Becker, Barbara Rossi, Raf Dewil   +5 more
wiley   +1 more source

Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen

Physik in unserer Zeit, EarlyView.
Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley   +1 more source

Scalable magnetic‐field‐assisted assembly of nanorod arrays with tunable orientation

Responsive Materials, EarlyView.
Magnetic‐field‐assisted colloidal assembly enables the scalable fabrication of magnetite nanorod arrays with tunable orientation and thickness. Directional magnetic alignment, coupled with controllable evaporation rate using ethylene glycol, produces vertically, tilted, and horizontally aligned arrays uniformly over macroscopic areas, providing a ...
Zepeng Cai, Caelan Shelton, Ian Zhang, Zuyang Ye, Chen Chen, Xueyong Zhang, Yucong Su, Licheng Cao, Ian Do, Yadong Yin   +9 more
wiley   +1 more source

Liquid‐Phase Fabrication of Janus 2D Materials: Defect‐Rich MoS2 Ultrathin Layers Asymmetrically Decorated with Au Nanoparticles

Small, EarlyView.
This work presents a versatile strategy for asymmetrically decorating MoS2 flakes using SiO2 microspheres as masking templates. The Janus MoS2 exhibits a 1.9‐fold enhancement in photoluminescence (PL) due to the incorporation of Au nanoparticles (NPs), primarily dominated by B exciton emission, which is attributed to defect‐rich structures.
Natalia V. Vassilyeva, Alicia Forment‐Aliaga, Eugenio Coronado   +2 more
wiley   +1 more source