The results of X-ray diffraction (XRD) measurements confirm the high purity of the sample with the appearance of all diffraction peaks of α-Fe2O3 nanostructures and the absence of any other...

2013年1月1日 · This xerogel was found to be an oxide mixture of Fe 3 O 4 and γ-Fe 2 O 3, which is concluded from its XRD pattern and its black coloration with brown tint. The further heating at 150 °C in the air atmosphere promoted the complete structure transformation of the oxides mixture to γ-Fe 2 O 3 within short time.

2017年1月1日 · α-Fe 2 O 3 nanoparticles were synthesized through chemical precipitation method. Crystallite size was identified through XRD analysis. TEM and SEM were used to specify the morphological and size of nanoparticles. Functional changes of nanoparticles were explored through FT-IR study. Direct band gap energies were calculated from UV-DRS.

2023年3月25日 · Structural study (XRD) revealed the single-phase hematite nanoparticles formation with trigonal alpha-Fe2O3 structure. Morphological study (SEM) confirms silkworm chrysalis shape like morphology by many interconnected nanoparticles of the …

2017年3月1日 · X-ray diffraction (XRD) is used to investigate the nanostructural analysis of the samples. According to Fig. 1, we see visible sharp peaks reveal that the crystal structure of Fe 3 O 4, α-Fe 2 O 3 and γ-Fe 2 O 3 nanoparticles are related to (220), (222), (311), (400), (422), and (511) and in compliance with the crystalline plates and ...

2019年7月5日 · In this work, we present the magnetic and structural properties of α-Fe 2 O 3 nanoparticles synthesized by the hydrothermal synthesis method. XRD, FTIR and Raman spectroscopy indicate that the samples consist of single-phase α-Fe2 O 3 nanoparticles.

The XRD pattern of Fe 2 O 3 -MgO nanocomposite exhibits that the XRD pattern aligns well with both reference codes for iron oxide and magnesium oxide.

The biologically fabricated (Fe2O3 NPs) were analyzed using FT-IR, XRD, UV–vis spectroscopy, and SEM. In the present work, the antioxidant and photocatalytic dye degradation efficiency of...

2009年6月1日 · X-ray powder diffraction (XRD) measurements were performed using Shimadzu diffractometer (θ − 2 θ) equipped with Cu–Kα radiation (λ = 1.5418 Å). It is known that X-ray diffraction line broadening is influenced by the crystallite size and the internal strains.

2 天之前 · Powder X-ray diffraction and X-ray photoelectron spectroscopy confirmed that the pc-Fe 2 O 3 and an-Fe 2 O 3 samples were composed of phase-pure α-Fe 2 O 3 and that they contained trace Ba 2 ... (α-Fe2O3) particles were controlled systematically from the gel-sol method recently developed. The size could be controlled in the range from ∼2 ...