Results 11 to 20 of about 68,717 (304)
COMPARATIVE INVESTIGATION OF Fe3O4, Fe3O4@HA AND Fe3O4@AC NANOPARTICLES ON DYES ADSORPTION
Environmental Engineering and Management Journal, 2022 In this study, the removal of Methylene Blue (MB) and Methyl Orange (MO) dyestuffs from aqueous solutions via adsorption by using magnetic nanoparticles of Fe3O4, Fe3O4@HA and Fe3O4@AC synthesized under laboratory conditions was investigated. The synthesized magnetic nanoparticles were characterized by SEM, EDX, XRD, BET surface area, FTIR, average ...
Kaykıoğlu, Gül +4 more
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MOF-Derived Cu-TiO<sub>2</sub>/Alginate Micromotors for Buoyancy-Regulated 3D Motion. [PDF]
Adv Sci (Weinh)In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Zou W +7 more
europepmc +2 more sources
Cation Diffusion-Mediated Displaced Reaction-Transformation in Green Steelmaking. [PDF]
Adv Sci (Weinh)The removal of O lattice atoms by environmental H2 at the surface of Fe3O4 results in Fe enrichment, driving the inward diffusion of Fe cations into the bulk. Through hopping between unoccupied and initially occupied sites, cation diffusion triggers a spatially displaced reaction‐transformation and drives subsequent dynamic phase transformations and ...
Guo G +7 more
europepmc +2 more sources
The Study of Nanostructured Solar Selective Coatings [PDF]
, 2012 In this thesis, nanostructured solar selective coatings used in solar thermal collectors are explored. The nanostructured stainless steel-aluminum nitride (SS-AlN) solar selective coating, a typical solar absorber, has been studied in terms of surface ...
Yang, Yuyi
core +6 more sources
Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles [PDF]
Cerâmica, 2021 Abstract Fe3O4 nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4 nanoparticles were synthesized by a co-precipitation method and functionalization was performed in further stages.
M. L. D. C. Silveira +2 more
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Magnetoresistance of Fe3O4-graphene-Fe3O4 junctions [PDF]
Applied Physics Letters, 2011 The magnetoresistance (MR) of Fe3O4-graphene-Fe3O4 junctions has been experimentally studied at different temperatures. It is found that a barrier exists at the Fe3O4/graphene interface. The existence of the interfacial barrier was further confirmed by the nonlinear I-V characteristics and nonmetallic temperature dependence of the interfacial ...
Zhi-Min Liao +6 more
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Synthesis and Characterization of Fe3O4 and Au- co-doped Fe3O4
Academic Science Journal, 2023 Co-precipitation was used to synthesis Au/Fe3O4 nano-composites different Au contents, (XRD) , (SEM) were used to analyze the nano-composites' microstructure and phase (EDX) , (XPS) were used to confirm the compositions of the powders. UV-Vis spectroscopy utilized to examine the particles' band gaps.
Mohammed Abd Alhussein, Ahmed N. Abd
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Chemistry of Inorganic Materials, 2023 Water pollution by contaminants such as dyes and drugs is a serious environmental problem. Currently, the objective is to develop materials that are effective in removing these contaminants. Graphene oxide (GO) and graphitic carbon nitride (g-C3N4) have been used as adsorbents for the efficient removal of organic pollutants and are useful to improve ...
J.M.P. Silva +5 more
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Effect of Mn Doping on Fe3O4 Nanoparticles Synthesized by Wet chemical Reduction Technique [PDF]
Iranica Journal of Energy and Environment, 2018 The effect of Mn doping on Fe3O4 nanocrystalline spinel particles is studied. Two doping concentrations of 10 and 15% Mn were employed. The nanoparticles synthesis was carried out by wet chemical reduction technique.
T. J. Malek +4 more
doaj +1 more source
Jurnal Kimia Riset, 2023 Free-living N2-fixing bacteria are essential in the soil because they provide a source of nitrogen in the form of ammonium needed by plants to be used in building protein blocks.
Ali Umar, Deden Saprudin, Fahrizal Hazra
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