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Nanochemistry Research، جلد ۴، شماره ۲، صفحات ۱۴۰-۱۴۷
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| عنوان انگلیسی |
Eco-friendly synthesis and characterization of α-Fe2O3 nanoparticles and study of their photocatalytic activity for degradation of Congo red dye |
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| چکیده انگلیسی مقاله |
In this work, α-Fe2O3 (hematite) nanoparticles were synthesized using Arabic gum (AG) as a biotemplate source by the sol-gel method. This method has many advantages such as low-cost, nontoxicity, simple work-up, high efficiency, compounds uniformity, and high efficiency. The α-Fe2O3 nanoparticles were characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (DRS), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The results of XRD analysis revealed the formation of the rhombohedral phase of α-Fe2O3 nanoparticles with an average crystallite size of 19 nm. The TEM image illustrated the α-Fe2O3 nanoparticles with average particle size of 45-50 nm. The application of α-Fe2O3 nanoparticles as a photocatalyst was investigated for the degradation of the Congo red dye. The effects of photocatalyst dosage, initial dye concentration and visible light irradiation on dye degradation were assessed. The results demonstrated that the catalyst could degrade90% of the Congo red dye in 90 min. The α-Fe2O3 nanoparticles exhibited slight decrease in photocatalytic degradation of Congo red dye after four recycles. |
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| نویسندگان مقاله |
Saeid Taghavi Fardood |
Department of Chemistry, University of Zanjan, Zanjan, Iran
Ferzaneh Moradnia |
Department of Chemistry, University of Zanjan, Zanjan, Iran
Sajjad Moradi |
Department of Chemistry, University of Zanjan, Zanjan, Iran
Reza Forootan |
Department of Chemistry, University of Zanjan, Zanjan, Iran
Fateme Yekke Zare |
Department of Chemistry, University of Zanjan, Zanjan, Iran
Maryam Heidari |
Department of Chemistry, University of Zanjan, Zanjan, Iran
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| نشانی اینترنتی |
http://www.nanochemres.org/article_96971_d22e54b611c11121962128cf6e77e154.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/2096/article-2096-2335417.pdf |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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