@article { author = {Dehno Khalaji, Aliakbar and Palang Sangdevini, Zahra and Mousavi, Seyyedeh Masomeh and Jarosova, Marketa and Machek, Pavel}, title = {Benzoic acid-functionalized α-Fe2O3 nanoparticles: synthesis, characterization, magnetic and optical properties}, journal = {Asian Journal of Nanoscience and Materials}, volume = {4}, number = {2}, pages = {137-146}, year = {2021}, publisher = {Sami Publishing Company}, issn = {2645-775X}, eissn = {2588-669X}, doi = {10.26655/AJNANOMAT.2021.2.4}, abstract = {In this work, a new iron precursor was prepared, calcinated at 500 °C and 600 °C. The final α-Fe2O3 products (named Fe-500 and Fe-600) were characterized using the Fourier transformed infrared spectroscopy (FT-IR), UV-Vis, X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) analysis. The results of the FT-IR analysis demonstrated thet the sharp peaks at wavenumbers 450-650 cm-1 confirmed the stretching vibration of Fe-O. The XRD results revealed that the product prepared at 500 °C was a mixture of 59% rhombohedral and 41% cubic phases of Fe2O3 with only 11% of cubic phase Fe2O3 in the sample processed at 600 °C. TEM images showed a slight increase in particle size by increasing the calcination temperature. The magnetic properties of the products depicted a weak ferromagnetic behavior. }, keywords = {Fe2O3 nanoparticles,Rhombohedral,benzoic acid,Cubic,Ferromagnetic}, url = {https://www.ajnanomat.com/article_128493.html}, eprint = {https://www.ajnanomat.com/article_128493_d273b8469bec6a55a81d84ad9c5688d2.pdf} }