کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1643691 1517252 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, characterization and photocatalytic application of α-Fe2O3 microflower
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Synthesis, characterization and photocatalytic application of α-Fe2O3 microflower
چکیده انگلیسی


• α-Fe2O3 microflowers has been prepared through sol–gel method.
• SEM images showed the synthesized product is flower-like shape.
• The band gap value of α-Fe2O3 microflower is 2.19 eV.

α-Fe2O3 microflower have been prepared through sol–gel method. The phase structure of the sample was analyzed by X-ray diffraction. X-ray diffraction result showed that the as-prepared sample was α-Fe2O3 phase with well-crystallized rhombohedral structure. Field emission scanning electron microscope images showed that the synthesized α-Fe2O3 product consisted of flower-like shape. The crystallinity, purity and properties of the as-synthesized α-Fe2O3 microflowers were analyzed by Raman spectroscopy. The absorption edge of the synthesized sample was observed by ultraviolet–visible spectroscopy. The absorption edges of the synthesized sample exhibited at 566, 452 and 272 nm. The band gap value of the as-synthesized α-Fe2O3 flower was measured through the Tauc equation. The band gap value of the microflower was 2.19 eV. The photocatalytic activity of the α-Fe2O3 microflower was carried out by the degradation of methyl orange and the α-Fe2O3 microflower exhibited the excellent photocatalytic performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 136, 1 December 2014, Pages 329–332
نویسندگان
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