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One-pot synthesis of α-Fe2O3 nanospheres by solvothermal method.

Wang C, Cui Y, Tang K - Nanoscale Res Lett (2013)

Bottom Line: We have successfully prepared α-Fe2O3 nanospheres by solvothermal method using 2-butanone and water mixture solvent for the first time, which were about 100 nm in diameter and composed of very small nanoparticles.The as-prepared samples were characterized using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy.The results showed that the product was α-Fe2O3 nanosphere, and the temperature was an important factor on the formation of α-Fe2O3 nanospheres.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China. kbtang@ustc.edu.cn.

ABSTRACT
We have successfully prepared α-Fe2O3 nanospheres by solvothermal method using 2-butanone and water mixture solvent for the first time, which were about 100 nm in diameter and composed of very small nanoparticles. The as-prepared samples were characterized using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results showed that the product was α-Fe2O3 nanosphere, and the temperature was an important factor on the formation of α-Fe2O3 nanospheres.

No MeSH data available.


SEM images of the product obtained in a typical synthesis. (a-b) Low magnification, (c-d) high magnification.
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Figure 2: SEM images of the product obtained in a typical synthesis. (a-b) Low magnification, (c-d) high magnification.

Mentions: The morphologies and microstructures of the typical sample have been studied by SEM and TEM. The SEM images (Figure 2) show that the product consists of well-dispersed spheres with a coarse surface. In the high magnification SEM image (Figure 2c, d), a great number of cracks on the surface of the spheres can be clearly observed, indicating the porous structure of the spheres with a diameter about 100 nm. In fact, every one sphere is composed of various smaller nanoparticles. The low and high magnification TEM images (Figure 3) also reveal that a lot of very small nanoparticles are loosely assembled to the nanosphere with an average diameter of about 100 nm, resulting into many gaps in these spheres. In other words, the SEM and TEM images together conform that the as-synthesized products are uniform nanospheres.


One-pot synthesis of α-Fe2O3 nanospheres by solvothermal method.

Wang C, Cui Y, Tang K - Nanoscale Res Lett (2013)

SEM images of the product obtained in a typical synthesis. (a-b) Low magnification, (c-d) high magnification.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3649940&req=5

Figure 2: SEM images of the product obtained in a typical synthesis. (a-b) Low magnification, (c-d) high magnification.
Mentions: The morphologies and microstructures of the typical sample have been studied by SEM and TEM. The SEM images (Figure 2) show that the product consists of well-dispersed spheres with a coarse surface. In the high magnification SEM image (Figure 2c, d), a great number of cracks on the surface of the spheres can be clearly observed, indicating the porous structure of the spheres with a diameter about 100 nm. In fact, every one sphere is composed of various smaller nanoparticles. The low and high magnification TEM images (Figure 3) also reveal that a lot of very small nanoparticles are loosely assembled to the nanosphere with an average diameter of about 100 nm, resulting into many gaps in these spheres. In other words, the SEM and TEM images together conform that the as-synthesized products are uniform nanospheres.

Bottom Line: We have successfully prepared α-Fe2O3 nanospheres by solvothermal method using 2-butanone and water mixture solvent for the first time, which were about 100 nm in diameter and composed of very small nanoparticles.The as-prepared samples were characterized using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy.The results showed that the product was α-Fe2O3 nanosphere, and the temperature was an important factor on the formation of α-Fe2O3 nanospheres.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China. kbtang@ustc.edu.cn.

ABSTRACT
We have successfully prepared α-Fe2O3 nanospheres by solvothermal method using 2-butanone and water mixture solvent for the first time, which were about 100 nm in diameter and composed of very small nanoparticles. The as-prepared samples were characterized using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results showed that the product was α-Fe2O3 nanosphere, and the temperature was an important factor on the formation of α-Fe2O3 nanospheres.

No MeSH data available.