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Preparation, Surface Modification, and Characteristic of α-Fe2O3 Nanoparticles

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The α-Fe2O3 nanoparticles were prepared via the co-precipitation process, and they were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The effect of the water bath temperature on the average grain size of the α-Fe2O3 nanoparticles was investigated. The minimum grain size of the α-Fe2O3 nanoparticles was 19.6 nm when the water bath temperature was 40 °C. Furthermore, the α-Fe2O3 nanoparticles were successfully modified with silica (SiO2) and chitosan (CTS) using the idea of nanoarchitectonics. the experimental results showed that, the average diameter of the as-prepared α-Fe2O3/SiO2 nanocomposites was around 65 nm; while, the average hydrodynamic diameter of the α-Fe2O3/CTS nanocomposites increased gradually with the increase of chitosan in solution. When the mass ratio of chitosan and the α-Fe2O3 nanoparticles reached 40:1, the diameter distribution range of the α-Fe2O3/CTS nanocomposites was very wide of 100– 900 nm, so the mass ratio of chitosan and the α-Fe2O3 nanoparticles was selected from 10:1 to 20:1 to be applied.
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Keywords: Nanoarchitectonics; α-Fe2O3 Nanoparticles; α-Fe2O3/CTS Nanocomposites; α-Fe2O3/SiO2 Nanocomposites

Document Type: Research Article

Affiliations: 1: The People’s Hospital of Danyang, Zhenjiang 212300, P. R. China 2: College of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, P. R. China 3: Danyang Blood Station, Zhenjiang 212300, P. R. China 4: School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China

Publication date: May 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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