Preparation, Characterization, and Application of Nanospherical α-Fe2O3 Supported on Silica for Photocatalytic Degradation of Methylene Blue

Document Type: Research Article


1 Chemical Engineering Department, Quchan Branch, Islamic Azad University, Quchan, I.R. IRAN

2 Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, I.R. IRAN

3 Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, I.R. IRAN


In the research, spherical α-Fe2O3 NanoParticles (NPs) were synthesized through Forced Hydrolysis and Reflux Condensation (FHRC) process and were supported on the surface of silica sand by Solid-State Dispersion (SSD) method. Characterization of silica and α-Fe2O3/SiO2 catalyst was done using Fourier-Transform InfraRed (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM) images, X-Ray Diffraction (XRD) patterns and Brunauer, Emmet and Teller (BET) surface area. The supported α-Fe2O3/SiO2 nanocatalyst with the average crystallite size of 27.5 nm was used for photocatalytic removal of Methylene Blue (MB) from aqueous solutions under Ultra-Violet (UV) light.In order to optimization of effective parameters on MB degradation, the single-variable method was used. The optimal conditions were determined as pH=11, initial concentration of MB=10 ppm, and the mass of catalyst =1.0 g. Degradation efficiency in optimal conditions was 97.32%.


Main Subjects

[1] Pourbabaee A. A., Malekzadeh F., Sarbolouki M. N., Mohajeri A., Decolorization of Methyl Orange
(As a Model Azo Dye) by the Newly Discovered Bacillus Sp
, Iran. J. Chem. Chem. Eng. (IJCCE), 24(3): 41-45 (2005).

[2] Fernandez C., Larrechi M. S., Callao M. P., An Analytical Overview of Processes for Removing Organic Dyes From Wastewater Effluents, TrAC, Trends Anal. Chem., 29(10): 1202-1211 (1020).

[3] Kirov M.Y., Evgenov O.V., Evgenov N.V., Egorina E.M., Sovershaev M.A., Sveinbjørnsson B., Nedashkovsky E.V., Bjertnaes L.J., Infusion of Methylene Blue in Human Septic Shock: A Pilot, Randomized, Controlled Study, Crit. Care. Med., 29(10): 1860-1867 (2001).

[4] Kavitha D., Namasivayam C., Experimental and Kinetic Studies on Methylene Blue Adsorption by Coir Pith Carbon, Bioresour. Technol., 98(1): 14-21 (2007).

[5] Umebayashi T., Yamaki T., Tanaka S., Asai K., Visible Light-Induced Degradation of Methylene Blue on S-Doped TiO2, Chemistry Letters., 32(4): 364-365 (2003).

[6] Dutta K., Mukhopadhyay S., Bhattacharjee S., Chaudhuri B., Chemical Oxidation of Methylene Blue Using a Fenton-like Reaction, J. Hazard. Mater., 84(1): 57-71 (2001).

[7] Taghavi K., Purkareim S., Pendashteh A. R., Chaibakhsh N., Optimized Removal of Sodium Dodecylbenzenesulfonate by Fenton-Like Oxidation Using Response Surface Methodology, Iran. J. Chem. Chem. Eng. (IJCCE), 35(4): 113-124 (2016).

[8] Dariani R. S., Esmaeili A., Mortezaali A., Dehghanpour S., Photocatalytic Reaction and Degradation of Methylene Blue on TiO2 Nano-Sized Particles, Optik-International Journal for Light and  Electron Optics, 127(18): 7143-7154 (1016).

[10] Farahmandjou M., Soflaee F., Synthesis and Characterization of α-Fe2O3 Nanoparticles by Simple Co-Precipitation Method, Phys. Chem. Res., 3(3): 191-196 (2015).

[13] Jiang T., Poyraz A. S., Iyer A., Zhang Y., Luo Z., Zhong W., Miao R., El-Sawy A.M., Guild C.J.,
Sun Y., Kriz D.A., Suib S.L., Synthesis of Mesoporous Iron Oxides by an Inverse Micelle Method and Their Application in the Degradation of Orange II Under Visible Light at Neutral pH, J. Phys. Chem. C., 119(19): 10454-10468 (2015).

[14] Askarinejad A., Bagherzadeh M., Morsali A., Sonochemical Fabrication and Catalytic Properties of α-Fe2O3 Nanoparticles, J. Exp. Nanosci., 6(3): 217-225 (2011).

[15] Tadic M., Panjan M., Damnjanovic V., Milosevic I., Magnetic Properties of Hematite (α-Fe2O3) Nanoparticles Prepared by Hydrothermal Synthesis Method, Appl. Surf. Sci., 320: 183-187 (2014).

[16] Bharathi S., Nataraj D., Mangalaraj D., Masuda Y., Senthil K., Yong K., Highly Mesoporous α-Fe2O3 Nanostructures: Preparation, Characterization and Improved Photocatalytic Performance Towards Rhodamine B (RhB), J. Phys. D: Appl. Phys., 43: 1-9 (2010).

[17] Chen M., Liu J., Chao D., Wang J., Yin J., Lin J., Fan H.J., Shen Z.X., Porous α-Fe2O3 Nanorods Supported on Carbon Nanotubes Graphene Foam as Superior Anode for Lithium Ion Batteries, Nano Energy., 9: 364–372 (2014).

[18] Rancourt D. G., Julian S. R., Daniels J. M., Mossbauer Characterization of Very Small Superparamagnetic Particles; Application to Intra-Zeolitic α-Fe2O3 Particles, J. Magn. Magn. Mater., 49(3): 305–316 (1985).

[19] Nikazar M., Gholivand K., Mahanpoor K., Photocatalytic Degradation of Azo Dye Acid Red 114 in Water with TiO2 Supported on Clinoptililite as a Catalyst, Desalination., 219(1-3): 293-300 (2008).

[20] Warren B. E., Averbach B. L., The Effect of Cold‐Work Distortion on X‐Ray Patterns, J. Appl. Phys., 21(6): 595-599 (1950)

[21] Zhang T.Y., Oyama T., Aoshima A., Hidaka H., Zhao J.C., Serpone N., Photooxidative N-Demethylation of Methylene Blue in Aqueous TiO2 Dispersions under UV Irradiation, J. Photochem. Photobiol. A., 140(2): 163-172 (2001).