Synthesis and Characterization of α-Fe2O3 Nanoparticles by Microemulsion Method

Bu çalışmada α-Fe2O3 nanopartiküller mikroemülsiyon yöntemi ile sentezlenmiştir. Sentezlenen nanopartiküller X-ışını difraksiyonu (XRD), Termogravimetrik Analiz (TGA), Taramalı Elektron Mikroskobu (SEM), Fourier Dönüşümü Kızılötesi (FTIR) spektrumu ve UV-Görünür Bölge teknikleri ile karakterize edilmiştir. SEM görüntülerine göre, homojen dispersiyonlu α-Fe2O3 nanopartiküllerde plaka benzeri yapı oluşumu gözlenmiştir. Nanopartiküllerin kristalit boyutu, Scherrer denklemi kullanılarak XRD verilerinden hesaplanmıştır. Kristal boyutlarının yaklaşık 13,1 nm olduğu bulunmuştur. UV-Görünür bölge spektrumuna göre, NP’lerin yaklaşık olarak 420 nm dalga boyunda optik absorpsiyon özelliği sergilediği belirlenmiştir. Ek olarak, α-Fe2O3 NP'lerin optik bant aralığı 3,2 eV olarak hesaplanmıştır.

Anahtar Kelimeler:

α-Fe2O3, microemulsion method, nanoparticle

Synthesis and Characterization of α-Fe2O3 Nanoparticles by Microemulsion Method

In this study, α-Fe2O3 nanoparticles (NPs) were synthesized by microemulsion method. Synthesized NPs were characterized by X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), Differential Thermal Analysis (DTA), Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR) spectra, and UV-Visible techniques. According to TGA analysis, it has been observed that a complete formation of Fe2O3 at around 400 °C. According to SEM images, plate like structure formation was observed in α-Fe2O3 NPs with homogeneous dispersion. Approximately 13.1 nm particle size was calculated from the XRD data by using the Scherrer equation. Fe-O vibrations in octahedral and tetrahedral regions were obtained in the FTIR spectrum. According to UV-Vis spectrum, it was determined that NPs showed optical absorption feature at wavelength of around 420 nm. In addition, optical band gap of the α-Fe2O3 NPs was calculated 3.2 eV.

Keywords:

α-Fe2O3 microemulsion method, , nanoparticle,

PDF

___

Beygi, H. and Babakhani A. 2017. "Microemulsion Synthesis and Magnetic Properties of FexNi(1−x) Alloy Nanoparticles." Journal of Magnetism and Magnetic Materials, 421, 177-183.
Chen, L., Wenwen, K., Jincheng, Y., Bo, G., Qinan, Z., Haijun, B., Aimin, C. and Chunping, J. 2015a. "Effect of Sintering Temperature on Microstructure and Electrical Properties of Mn1.2Co1.5Ni0.3O4 Ceramic Materials Using Nanoparticles by Reverse Microemulsion Method." Journal of Materials Science: Materials in Electronics, 27(2), 1713-1718.
Chen, L., Wenwen, K., Jincheng, Y., Huimin, Z., Bo, G., Yonglei, L., Haijun, B., Aimin, C., Chunping, Ji. 2015b. "Synthesis and Characterization of Mn–Co–Ni–O Ceramic Nanoparticles by Reverse Microemulsion Method." Ceramics International, 41(2), 2847-2851.
Foroughi, F., Hassanzadeh, T., Jamshid, A. 2015. "Microemulsion Synthesis and Magnetic Properties of Hydroxyapatite-Encapsulated Nano CoFe2O4." Journal of Magnetism and Magnetic Materials, 382, 182-87.
Han, D. Y., Wang, C. Q., Li, D. D., Cao, Z. B. 2015. "NiO/ZnO Core-Shell Nanoparticles in-situ synthesis via Microemulsion Method." Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 46(5), 794-797.
Kamali, K. Z., Alagarsamy, P., Huang, N. M., Ong B. H., Lim, H. N. 2014. "Hematite Nanoparticles-Modified Electrode Based Electrochemical Sensing Platform for Dopamine." IOP Conference Series: Materials Science and Engineering, 196, 396135-396139.
Lai, W. C., Hong, L., Hsueh C.Y. 2019. "Size-Tunable Silica Nanowires Prepared Using Reverse Microemulsion-Gel Systems." Journal of the Taiwan Institute of Chemical Engineers, 99, 207-214.
Laokul, P., Sathakan, A., Santi, M., Ekaphan, S. 2015. "Magnetic and Optical Properties of CoFe2O4 Nanoparticles Synthesized by Reverse Micelle Microemulsion Method." Journal of Superconductivity and Novel Magnetism, 28(8), 2483-2489.
Li, X., Honghao, Y., Xiangxin, X. 2016. "Extraction of Iron from Vanadium Slag Using Pressure Acid Leaching." Procedia Environmental Sciences, 31, 582-588.
Lin, B. Liaw, S. L. 2015. "Simultaneous Removal of Volatile Organic Compounds from Cooking Oil Fumes by Using Gas-Phase Ozonation over Fe(OH)3 Nanoparticles." Journal of Environmental Chemical Engineering, 3(3), 1530-1538.
Mirzaei, A., Kamal, J., Babak, H., Seyyed, H., Maryam, B., Salvatore, L., Bonavita, A., and Giovanni, N. 2016. "Synthesis and Characterization of Mesoporous α-Fe2O3 Nanoparticles and Investigation of Electrical Properties of Fabricated Thick Films." Processing and Application of Ceramics, 10(4), 209-217.
Najjar, R., Shokri, M., Farsadi, S. 2014. "Preparation of Pd-Doped Nano-TiO2 in Microemulsion and Their Application in Photodegradation of C.I. Acid Yellow 23." Desalination and Water Treatment, 54(9), 2581-2591.
Patterson, A.L. 1939. ''The Scherrer Formula for X-Ray Particle Size Determination.'' Physical Review, 56, 978-982.
Pournajaf, R., Hassanzadeh, S. A. T., Ghashang, M. 2014. "Effect of Surfactants on the Synthesis of Al2O3–CeO2 Nanocomposite Using a Reverse Microemulsion Method." Ceramics International, 40(3), 4933-4937.
Pournajaf, R. Hassanzadeh, S. A. T. 2015. "Effect of Heat Treatment on the Size, Structural and Catalytic Properties of Al2O3–CeO2 Nanocomposite Powder Prepared by Microemulsion Method." Journal of Sol-Gel Science and Technology, 75(2), 360-365.
Sarkar, D., Sonia, T., Vikram, T., Raman, S. S., Kartic, C. K. 2011. "Formation of Zinc Oxide Nanoparticles of Different Shapes in Water-in-Oil Microemulsion." Colloids and Surfaces A: Physicochemical and Engineering Aspects, 381(1-3), 123-129.
Shiri, M. S. Z., Henderson, W., Mucalo M. R. 2019. "A Review of the Lesser-Studied Microemulsion-Based Synthesis Methodologies Used for Preparing Nanoparticle Systems of the Noble Metals, Os, Re, Ir and Rh." Materials, 12, 1896-1921.
Shojaei, S., Hassanzadeh S. A. T., Ghashang, M. 2014. "Reverse Microemulsion Synthesis and Characterization of CaSnO3 Nanoparticles." Ceramics International, 40(7), 9609-9613.
Strom, L., Strom, H., Carlsson, P. A., Skoglundh, M., Harelind, H. 2018. "Catalytically Active Pd-Ag Alloy Nanoparticles Synthesized in Microemulsion Template." Langmuir, 34(33), 9754-9761.
Taffa, D. H., Hamm, I., Dunkel, C., Sinev, I., Bahnemanncd D., Wark, M. 2015. ''Electrochemical deposition of Fe2O3 in the presence of organic additives: a route to enhanced photoactivity.'' RSC Advances, 5, 103512–103522.
Tauc J, Grigorovici R, Vancu A. 1966. ''Optical Properties and Electronic Structure of Amorphous Germanium.'' Phys Status Solidi (b), 15, 627-637.
Waseem, M. S., Naeem, M. A., Shah K. H., Rashid, U. 2013. "Synthesis, Physical Characteristics, and Cd2+ Sorption Studies of Amorphous Fe(OH)3." Desalination and Water Treatment, 52(25-27), 4783-4791.
Ye, H., Wang, J. Wang W. H., Bao, M. 2018. "Encapsulation of Pd Sub-Nanoclusters in SiO2 Nanospheres by a Reverse Microemulsion Method." Functional Materials Letters, 11(04), 1850081-1850084.
Yoon, K. Y., Lee, J. S., Kim, K., Bak, C. H., Kim, S. I., Kim, J. B., Jang, J. H. 2014. "Hematite-Based Photoelectrochemical Water Splitting Supported by Inverse Opal Structures of Graphene." ACS Applied Materials Interfaces, 6(24):22634-22639.
Zainuri, M. 2017. "Hematite from Natural Iron Stones as Microwave Absorbing Material on X-Band Frequency Ranges." IOP Conference Series: Materials Science and Engineering, 196, 012008-0120012.