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Solar Light Induced Photo Catalytic Properties of α-Fe2O3 Nanoparticles for Degradation of Methylene Blue Dye |
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PP: 213-224 |
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doi:10.18576/ijtfst/110209
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Author(s) |
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Amanullakhan Pathan,
Sandip H. Bhatt,
Shailesh Vajapara,
C. P. Bhasin,
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Abstract |
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| The present work describes α-Fe2O3 nanoparticles are prepared by chemical displacement method using CTAB as a stabilizing agent. Glutaric acid as fuel and metal salt like ferrous sulphate was used in synthesis. The structural, morphological, metal percentage and optical properties of as synthesized nanoparticles are investigated by using x-ray diffraction (XRD), UV-Visible Spectra; field emission gun Scanning electron microscopy (FEG-SEM) with EDS, Fourier transforms infrared spectroscopy (FTIR), High-resolution Transmission electron microscopy (HR-TEM) and Photoluminescence Spectroscopy (PL). The photocatalytic degradation of Methylene Blue dye was measured by visible absorption spectroscopy. To obtain the most favorable conditions for degradation of MB dye, the effect of various experimental parameters, i.e., pH, amount of nanoparticles, concentration of dye and light intensity on the rate of reaction was studied. A tentative mechanism for the photocatalytic degradation of Methylene Blue was proposed. Photocatalytic degradation of Methylene Blue dye followed pseudo first-order kinetics. It was found that the dye degradation gave the best results at a pH of 6.0, and using a 70 mW•cm–2 light intensity with 0.3 g of α-Fe2O3 nanoparticles. At room temperature, the photocatalytic degradation of Methylene Blue dye was observed about 92.3%. |
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