搅拌方式对共沉淀法合成铁酸铁纳米颗粒特性的影响

IF 3.1 4区 医学 Q2 BIOPHYSICS
H. R. Dehghanpour, P. Parvin, A. Younesi, Monireh Gilaki
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引用次数: 0

摘要

为了评估搅拌过程对Fe3O4纳米颗粒性能的影响,比较了两种搅拌方式(机械搅拌和磁力搅拌)。采用化学沉淀法制备了纳米Fe3O4。油酸作为表面活性剂覆盖在纳米颗粒表面。利用x射线衍射(XRD)对样品进行表征,利用扫描电镜(SEM)对纳米颗粒的形貌进行观察。用振动样品磁强计(VSM)检测了纳米颗粒的磁性特性。用傅里叶变换红外光谱(FTIR)测定化学键。因此,磁滞回线表征了磁性纳米颗粒。磁性纳米颗粒由于其低矫顽力而被认为是一种软磁材料。XRD图显示,尖晶石型纳米颗粒的晶面取向存在强大的峰。结果表明,纳米颗粒接近球形。采用Scherrer近似估计了纳米颗粒的平均尺寸。平均粒径为11 nm(化学混合器)和13 nm(磁力混合器)。SEM图像证实了纳米颗粒的球形,FTIR证实了Fe-O键的构成,并证实了尖晶石铁素体的结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Agitation Methods on Characteristics of Iron Ferrite Nanoparticles Synthesized by Co-Precipitation Process
To assess the result of the stirring process on the Fe3O4 nanoparticles' properties, two types of stirrings (mechanical and magnetic) were compared. Fe3O4 nanoparticles were generated by chemical precipitation. Oleic acid covered the nanoparticles as a surfactant performer. X-ray diffraction (XRD) was used to investigate the fine grains sample, and scanning electron microscope (SEM) images were used for observing the nanoparticles’ geometry. The vibrating sample magnetometer (VSM) was also used to examine the magnetic characteristic of the nanoparticles. Chemical bonds were determined by using Fourier transform infrared spectroscopy (FTIR). As a result, the hysteresis loop characterized the magnetic nanoparticles. Magnetite nanoparticles are regarded as a soft magnetic material due to their low coercivity. XRD diagrams show the presence of powerful peaks in the orientations of crystal surfaces of the spinel form of the nanoparticles. The result showed that nanoparticles were nearly spherical. The average dimensions of the nanoparticles were estimated by Scherrer approximation. The mean particle dimensions were 11 nm (chemical mixer) and 13 nm (magnet mixer). SEM images verified the spherical shape of the nanoparticles, and FTIR confirmed the constitution of Fe-O bonds and validated the spinel ferrites configuration.
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来源期刊
Journal of Applied Biomaterials & Functional Materials
Journal of Applied Biomaterials & Functional Materials BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
4.40
自引率
4.00%
发文量
36
审稿时长
>12 weeks
期刊介绍: The Journal of Applied Biomaterials & Functional Materials (JABFM) is an open access, peer-reviewed, international journal considering the publication of original contributions, reviews and editorials dealing with clinical and laboratory investigations in the fast growing field of biomaterial sciences and functional materials. The areas covered by the journal will include: • Biomaterials / Materials for biomedical applications • Functional materials • Hybrid and composite materials • Soft materials • Hydrogels • Nanomaterials • Gene delivery • Nonodevices • Metamaterials • Active coatings • Surface functionalization • Tissue engineering • Cell delivery/cell encapsulation systems • 3D printing materials • Material characterization • Biomechanics
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