Synthesis and characterization of iron oxide nanoparticles prepared hydrothermally at different reaction temperatures and pH

被引：1

作者：

Bhavani, Palagiri ^{[1
]}

Rajababu, Chintaparty ^{[1
]}

Arif, Md. ^{[2
]}

Reddy, Immareddy Venkata Subba ^{[3
]}

Reddy, Nagireddy Ramamanohar ^{[1
]}

机构：

[1] Yogi Vemana Univ, Dept Mat Sci & Nanotechnol, Kadapa, India

[2] IIG, Environm Magnetism Lab, Bombay, Maharashtra, India

[3] Gitam Univ, Dept Phys, Hyderabad, Andhra Pradesh, India

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2016年 / 107卷 / 10期

关键词：

Hydrothermal temperature; Alkaline concentration; Magnetite nanoparticles; Saturation magnetization; MAGNETIC-PROPERTIES; FACILE;

D O I：

10.3139/146.111417

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Iron oxide nanoparticles were synthesized with Fe+2 and Fe+3 precursors in a 1:2 ratio by using the hydrothermal method under different reaction temperatures and alkaline conditions. The iron oxide nanoparticles were characterized for structure, morphology, optical and magnetic properties. X-ray diffraction analysis confirmed that the samples prepared at different hydrothermal temperatures exhibited a magnetite structure, the increased intensity of-the peaks indicates a high degree of crystallinity. The transformation of goethite to Fe3O4 structure was observed with variation of the pH value. The morphological study revealed that some samples exhibited spherical particles and some others exhibited a mixed morphology of spheres and rods. The iron oxide synthesized at 190 degrees C exhibited better magnetic properties due to the unifolut distribution of spheres with particles size in the range, 18-25 nm.

引用

页码：942 / 947

页数：6

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