Journal ArticleDOI
A Facile Approach to Fabrication of Bifunctional Magnetic-Optical Fe3O4@ZnS Microspheres
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TLDR
In this paper, a magnetic-optical Fe3O4@ZnS microspheres with core−shell heterostructures have been successfully fabricated by a simple chemical deposition method.Abstract:
Bifunctional magnetic-optical Fe3O4@ZnS microspheres with core−shell heterostructures have been successfully fabricated by a simple chemical deposition method. The adsorption of sodium dodecyl sulfate (SDS) on the preformed magnetite microspheres played an essential role in directing the structure of the composites. The presented materials were characterized by FE-SEM, HRTEM, XRD, FTIR, fluorescence spectrophotometer, and SQUID MPMS. The results showed that spherical Fe3O4 cores were coated by a uniform ZnS layer. The saturation magnetization value of Fe3O4@ZnS core−shell microspheres is 52.5 emu g−1 at room temperature. Ultraviolet and visible light can be easily obtained by exposing the microspheres to different excitation wavelengths. The combined magnetic and fluorescent properties endow the microspheres with great potential applications in drug targeting, bioseparation and diagnostic analysis.read more
Citations
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Recent progress on magnetic iron oxide nanoparticles: synthesis, surface functional strategies and biomedical applications.
TL;DR: This review focuses on the recent development and various strategies in the preparation, microstructure, and magnetic properties of bare and surface functionalized iron oxide nanoparticles (IONPs); their corresponding biological application was also discussed.
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Core–shell nanoparticles: synthesis and applications in catalysis and electrocatalysis
Manoj B. Gawande,Anandarup Goswami,Tewodros Asefa,Huizhang Guo,Ankush V. Biradar,Dong Liang Peng,Radek Zboril,Rajender S. Varma +7 more
TL;DR: Synthetic methods for preparing different classes of CSNs, including the Stöber method, solvothermal method, one-pot synthetic method involving surfactants, etc., are briefly mentioned here.
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Recent progress in magnetic iron oxide–semiconductor composite nanomaterials as promising photocatalysts
TL;DR: The latest synthesis methods and recent progress in the photocatalytic applications of magnetic iron oxide-semiconductor composite nanomaterials are reviewed, and the problems and challenges still need to be resolved and development strategies are discussed.
Journal ArticleDOI
Designed synthesis and surface engineering strategies of magnetic iron oxide nanoparticles for biomedical applications
TL;DR: This review outlines the limitations of extant surface engineering strategies and several developing strategies that may overcome these limitations and details the promising future directions of this active research field.
Journal ArticleDOI
Constructing carbon-coated Fe₃O₄ microspheres as antiacid and magnetic support for palladium nanoparticles for catalytic applications.
TL;DR: A carbon layer was coated onto Fe₃O₄ microspheres by hydrothermal treatment and exhibited a higher catalytic activity toward the reduction of methyl orange than commercially used Pd/C catalyst.
References
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Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
TL;DR: Thermal annealing converts the internal particle structure from a chemically disordered face- centered cubic phase to the chemically ordered face-centered tetragonal phase and transforms the nanoparticle superlattices into ferromagnetic nanocrystal assemblies that can support high-density magnetization reversal transitions.
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Jongnam Park,Kwangjin An,Yosun Hwang,Je-Geun Park,Han-Jin Noh,Jae Young Kim,Jae-Hoon Park,Nong-Moon Hwang,Taeghwan Hyeon +8 more
TL;DR: This work is able to synthesize as much as 40 g of monodisperse nanocrystals in a single reaction, without a size-sorting process, and the particle size could be controlled simply by varying the experimental conditions.
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Size-Controlled Synthesis of Magnetite Nanoparticles
Shouheng Sun,Hao Zeng +1 more
TL;DR: The reported procedure can be used as a general approach to various ferrite nanoparticles and nanoparticle superlattices.
Journal ArticleDOI
Monodisperse magnetic single-crystal ferrite microspheres.
TL;DR: This work reports a general approach for the fabrication of monodisperse, hydrophilic, and single-crystalline ferrite microspheres by a solvothermal reduction method, and is the first report on the synthesis of single- Crystalline magneticmicrospheres.
Journal ArticleDOI
Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins.
TL;DR: By using the unique core-shell microspheres with accessible large pores and excellent magnetic property, a fast removal of microcystins with high efficiency can be achieved.