搜索结果: 1-15 共查到“复合材料 Fe3O4”相关记录22条 . 查询时间(0.31 秒)
Superior antibacterial activity of Fe3O4@copper(II) metal-organic framework core-shell magnetic microspheres
Fe3O4@copper(II) metal-organic framework core-shell magnetic microspheres
2023/6/21
With the rapid evolution of antibiotic resistant bacteria, it has become more and more difficult to treat bacterial infection with traditional antibiotics. Therefore, new strategies with high antibact...
中国科学院理化技术研究所专利：Fe3O4/聚（3,4-二氧乙基）噻吩核壳结构的复合微球的制备方法
中国科学院理化技术研究所 专利 Fe3O4 聚（3,4-二氧乙基）噻吩 核壳结构 复合微球 制备方法
2023/4/23
中国科学院理化技术研究所专利：Fe3O4/聚（3,4-二氧乙基）噻吩核壳结构的复合微球的制备方法
本发明公开了一种RGO/Fe3O4磁性复合物及其制备方法和应用，属于水处理技术领域。其中，制备方法包括以下步骤：(1)采用改进的Hummer's法制备GO；(2)在氮气保护下，将FeCl2×4H2O加入到GO分散液中，搅拌溶解，在常温下滴加氨水创造碱性环境，反应15min，离心得到固体样品，用超纯水和乙醇反复洗涤，最后冷冻干燥，得到磁性Fe3O4修饰的RGO。本发明的有益之处在于：制备方法过程简单...
采用溶剂热法合成磁性Fe3O4纳米粒子，并以此为基底设计制备了一种具有pH响应核壳结构的磁性纳米复合材料Fe3O4@ZIF-8@PA. 该材料的比饱和磁化强度可达35.46 A·m2/g，具有良好的磁性. Fe3O4纳米粒子呈球型结构，分散性良好. 与基底相比，复合微球的粒径尺寸明显增大，但依然符合载体材料的理想尺寸且分布均匀. 此外，载体具有多孔结构，表面积较大，载药效率和载药量分别高达96.4...
Shear disassembly of hierarchical superparamagnetic Fe3O4 hollow nanoparticle necklace chains
Supramolecular amino hydrogen bond super paramagnetic nanoparticles quantitative shear stress magnetic rheological analysis
2014/6/18
Supramolecular amide hydrogen-bond interactions between bundles of necklace-like chains based on superparamagnetic hollow Fe3O4 nanoparticle beads could be indirectly quantified by shear stress and ma...
采用共沉淀法成功制备出具有超顺磁性的纳米Fe3O4, 并将Fe3O4与SrFe12O19复合制成复合吸波材料Fe3O4-SrFe12O19, 利用X射线衍射仪(XRD)、透射电镜(TEM)、振动样品磁强计(VSM)和矢量网络分析仪(PNA)对产物的物相、显微结构、磁性能和吸波性能进行了表征与分析。结果表明, 当Fe3O4与SrFe12O19质量比为1∶0.3时, Fe3O4-SrFe12O19饱和...
Magnetorheological behavior of Pickering emulsions stabilized by surface-modified Fe3O4 nanoparticles
Magnetorheology Rheology Pickering emulsion Fe3O4 Nanoparticles
2012/6/26
Silane-modified Fe3O4 nanoparticles can stabilize emulsions of both polar and non-polar oils, and the rheological behavior of these emulsions has been investigated as a function of oil volume fraction...
Fe3O4/PNIPAM纳米复合微球的制备研究
复合材料 聚N-异丙基丙烯酰胺 纳米复合微球 粒径 磁含量
2011/11/1
用化学共沉淀法制备Fe3O4磁性纳米粒子, 以N--异丙基丙烯酰胺(NIPAM)、N,N’--亚甲基双丙烯酰胺(MBA)和偶氮二异丁腈(AIBN)为原料, 用种子乳液聚合法制备了具有温敏性的Fe3O4/PNIPAM纳米复合微球。用红外光谱仪(FTIR)、透射电镜(TEM)、热重分析仪(TGA)及Zeta粒度仪(DTS)等手段对复合微球进行了表征, 研究了单体(NIPAM)、交联剂(MBA)、乳化剂...
Fe3O4/PNIPAM纳米复合微球的制备研究
复合材料 聚N-异丙基丙烯酰胺 纳米复合微球 粒径 磁含量
2011/11/1
用化学共沉淀法制备Fe3O4磁性纳米粒子, 以N--异丙基丙烯酰胺(NIPAM)、N,N’--亚甲基双丙烯酰胺(MBA)和偶氮二异丁腈(AIBN)为原料, 用种子乳液聚合法制备了具有温敏性的Fe3O4/PNIPAM纳米复合微球。用红外光谱仪(FTIR)、透射电镜(TEM)、热重分析仪(TGA)及Zeta粒度仪(DTS)等手段对复合微球进行了表征, 研究了单体(NIPAM)、交联剂(MBA)、乳化剂...
One step method to encapsulate nanocatalysts within Fe3O4 nanoreactors
Magnetic nanocomposites penetration Fe3O4 shell metal core the core material metal ions precursor metal core metal salt
2011/8/3
Here reported a facile approach to synthesize rattle type magnetic nanocomposite with a permeable Fe3O4 shell and noble metallic core. The core of yolk materials are controlled by varying the metallic...
Hierarchical core/shell Fe3O4@SiO2@γ-AlOOH@Au micro/nanoflowers for protein immobilization
Particles super paramagnetic Fe3O4 core silica shell
2011/1/12
A facile synthesis of monodispersed microparticles composed of superparamagnetic Fe3O4 cores, SiO2 shell, hierarchical c-AlOOH periphery with Au nanoparticles is reported. These particles are found to...
Sonochemical synthesis and characterization of magnetic separable Fe3O4–TiO2 nanocomposites and their catalytic properties
sonochemical synthesis recyclable photocatalyst TiO2 nanocomposite rhodamine B degradation
2010/9/29
A novel sonochemical method is described for the preparation of Fe3O4–TiO2 photocatalysts in which nanocrystalline titanium dioxide particles are directly coated onto a magnetic core. The Fe3O4 nanopa...
Sonochemical synthesis and characterization of magnetic separable Fe3O4/Ag composites and its catalytic properties
Sonochemical Fe3O4 Ag composites Recyclable catalysts RhB
2010/8/15
A Fe3O4/Ag composite, with high efficiency in the degradation of rhodamine B was synthesized through a simple sonochemical method. These composites were obtained from sonication of Ag(NH3)2+ and (3-am...
荧光磁性双功能Fe3O4@PHEMA-Tb微球的制备及其蛋白固定化
荧光磁性高分子微球 光化学合成 蛋白固定化
2009/11/4
以甲基丙烯酸-2-羟基乙酯为单体，N,N￠-亚甲基双丙烯酰胺为交联剂，采用光化学方法在Fe3O4磁性液体中制备了磁性聚甲基丙烯酸-2-羟基乙酯微球，合成了含有稀土元素Tb的荧光磁性高分子微球，以牛血清白蛋白为模型对微球固定释放蛋白能力进行了研究，用VSM, PCS, FT-IR, TG-DTA, SEM, FS, UV-Vis等技术对微球的性能进行了表征. 结果表明，荧光磁性高分子微球粒径为29....
Magnetorheological Behavior of Polyethyene Glycol- Coated Fe3O4 Ferrofluids
PEG-coated Fe3O4 ferrofluid magnetorheological effect pseudo-plasticity
2009/10/8
Polyethyene glycol (PEG)-coated Fe3O4 ferrofluids were prepared by suspending the PEG-coated Fe3O4 nanoparticles in an oligomeric PEG-400 carrier liquid, and their magnetorheological steady flow behav...