Sol-gel synthesis and characterization of α-Fe2O3 nanoparticles

被引：63

作者：

Raja, K. ^{[1
]}

Jaculine, M. Mary ^{[2
]}

Jose, M. ^{[3
]}

Verma, Sunil ^{[4
]}

Prince, A. A. M. ^{[5
]}

Ilangovan, K. ^{[1
]}

Sethusankar, K. ^{[1
]}

Das, S. Jerome ^{[2
]}

机构：

[1] Ramakrishna Mission Vivekananda Coll, Dept Phys, Madras 600004, Tamil Nadu, India

[2] Loyola Coll, Dept Phys, Madras 600034, Tamil Nadu, India

[3] Sacred Heart Coll, Dept Phys, Tirupattur 635601, India

[4] Raja Ramanna Ctr Adv Technol, Laser Mat Dev & Devices Div, Indore 452013, India

[5] Ramakrishna Mission Vivekananda Coll, Dept Chem, Madras 600004, Tamil Nadu, India

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2015年 / 86卷

关键词：

Nanomaterials; X-ray diffraction; Optical properties; SEM analysis; Hysteresis; MAGNETIC-PROPERTIES; HYDROTHERMAL SYNTHESIS; FE2O3; NANOPARTICLES; OPTICAL-PROPERTIES; SIZE; FE; GAMMA-FE2O3; COERCIVITY; PARTICLES; TRANSPORT;

D O I：

10.1016/j.spmi.2015.07.044

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The alpha-Fe2O3 nanoparticles have been successfully synthesized via sal-gel technique. The lattice parameters, the lattice strain and crystallite size were investigated by X-ray diffraction (XRD) analysis. Fourier transform infrared spectroscopy (FT-IR) analysis has been carried out to confirm the presence of functional groups. Using UV-visible spectrum, the optical band gap energy is estimated as 2.55 eV. The morphology and chemical composition of the alpha-Fe2O3 nanoparticles were examined by high resolution scanning electron microscopy (HR-SEM) and energy dispersive X-ray diffraction analysis (EDX) respectively. The hysteresis loop was traced out using vibration sample magnetometer and the values of coercivity and saturation magnetization are found out to be 3891 G and 0.4193 emu/g respectively. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：306 / 312

页数：7

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