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Journal of Ultrafine Grained and Nanostructured Materials، جلد ۵۸، شماره ۱، صفحات ۱۲۰-۱۳۱
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| عنوان انگلیسی |
Hydrothermal synthesized α-Fe2O3/Mn2O3 nanocomposite for efficient photodegradation of methylene blue under visible light |
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| چکیده انگلیسی مقاله |
Treating wastewater using transition metal oxide nanocomposites as efficient photocatalysts has received more attention in recent years. In this work, to develop a new efficient photocatalyst based on metal oxides, the α-Fe2O3/Mn2O3 heterojunction nanocomposite was prepared via a facile one-pot hydrothermal precipitate technique and characterized by FT-IR, XRD, UV-Vis, PL, SEM and TEM techniques. The results confirm the successful formation of α-Fe2O3/Mn2O3 nanocomposite. The as-prepared α-Fe2O3/Mn2O3 was assessed for the photodegradation of methylene blue (MB) as a model wastewater under visible light irradiation. The photocatalytic activity for degradation of MB was calculated to be 96.7% within 90 min. The kinetics of experimental data were studied using the Langmuir mechanism, resulting in a rate constant of 0.02521 min-1. The effect of different scavengers on photodegradation efficiency was investigated and the results predicted that the O2-° radicals are responsible for the degradation of MB dye molecules. The reusability after six cycles was studied without significant activity change, confirming the photocatalytic efficiency and stability of α-Fe2O3/Mn2O3 nanocomposite. Therefore, the as-prepared α-Fe2O3/Mn2O3 is a promising photocatalyst in the photodegradation of other organic dyes. |
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| کلیدواژه‌های انگلیسی مقاله |
Heterojunction,α-Fe2O3/Mn2O3 nanocomposite,Methylene Blue,photodegradation |
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| نویسندگان مقاله |
Aliakbar Dehno Khalaji |
Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
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| نشانی اینترنتی |
https://jufgnsm.ut.ac.ir/article_102482_2c654ffc1cfba7cd82078390712c2f0d.pdf |
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| زبان مقاله منتشر شده |
en |
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