Results 91 to 100 of about 70,002 (285)

Crystal -Growth Kinetics of Magnetite (FE3O4) Nanoparticles using the Ostwald Ripening Model

open access: yesInternational Journal of Technology, 2017
Magnetite nanoparticles (Fe3O4) are a type of magnetic particle with huge potential for application as a drug carrier due to their excellent superparamagnetic, biocompatible, and easily modified surface properties.
Ahmad Fadli   +4 more
doaj   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel   +4 more
wiley   +1 more source

Enhancement of Pb and Cd Adsorption in Water Samples by Magnetite Using Humic Acid as Modifier

open access: yesYankuang ceshi, 2019
BACKGROUND Magnetite is widely used as a green and cheap mineral material to adsorb heavy metals in water samples, but it has the disadvantages of low adsorption capacity, poor selectivity and easy reunion.
SHAO Kun, ZHAO Gai-hong, ZHAO Chao-hui
doaj   +1 more source

Magnetic Supraparticles as Identifiers in Single‐Layer Lithium‐Ion Battery Pouch Cells

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
As an alternative to externally applied optical identifiers, magnetic supraparticles (SPs) can be used for contactless identification of lithium‐ion battery pouch cells via magnetic particle spectroscopy. This study validated the integration and detection of magnetic markers in three model scenarios.
Sara Li Deuso   +8 more
wiley   +1 more source

Size-dependent magnetic responsiveness of magnetite nanoparticles synthesised by co-precipitation and solvothermal methods

open access: yesJournal of Science: Advanced Materials and Devices, 2018
The dependence of the magnetic responsiveness on magnetite nanoparticle size has been studied. Monodisperse magnetite nanoparticles of 10 nm diameter were prepared by an ultrasonically enhanced co-precipitation procedure.
Thanh Quang Bui   +3 more
doaj   +1 more source

The Identification and Interpretation of Microbial Biogeomagnetism [PDF]

open access: yes, 2007
Microbial activity plays a major role in the sedimentary iron cycle. Some microbes gain energy by reducing or oxidizing iron and thus induce changes in the sedimentary iron mineral assemblage.
Kopp, Robert Evans, III
core   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr   +4 more
wiley   +1 more source

Low‐Temperature (100°C–300°C) Magnetite Production in Variably Serpentinized Lherzolites

open access: yesGeochemistry, Geophysics, Geosystems
The study of the serpentinization process in ultramafic rocks has been revived in recent years in response to the problems of natural hydrogen generation.
Keanu Loiseau   +5 more
doaj   +1 more source

Sprayable Polyolefin Sorbents Enabled by Bio‐Solvents for Large‐Scale Oil and Chemical Spill Recovery

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A sprayable POE‐based sorbent formulated with a green solvent blend of α‐pinene, D‐limonene, and p‐cymene enables rapid in situ film formation via solvent evaporation, allowing efficient pollutant capture. The system exhibits high oil uptake (37.3 g g−1) and effectively removes up to 60 mL of VLSFO under simulated marine spill conditions.
Youngmin Choi, Changwoo Nam
wiley   +1 more source

Optimization of feed blends to enhance the roasting performance of pellets made from Western Australian ultrafine magnetite concentrate

open access: yes工程科学学报, 2017
The conducted roasting tests were studied which pellets were made from blends of Western Australia ultrafine (WAU) magnetite concentrate and domestic magnetite concentrate or Brazilian hematite concentrate. The results show that the pellets made from 100%
ZHU De-qing   +5 more
doaj   +1 more source

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