A study on growth formation of nano-sized magnetite Fe3O4 via co-precipitation method

被引：13

作者：

Lim, Y. S. ^{[1
]}

Lai, C. W. ^{[1
]}

Hamid, S. B. A. ^{[1
]}

Julkapli, N. Muhd ^{[1
]}

Yehya, W. A. ^{[1
]}

Karim, M. Z. ^{[1
]}

Tai, M. F. ^{[1
]}

Lau, K. S. ^{[1
]}

机构：

[1] Univ Malaya, Nanotechnol & Catalysis Res Ctr NANOCAT, IPS, Kuala Lumpur 50603, Malaysia

来源：

MATERIALS RESEARCH INNOVATIONS | 2014年 / 18卷

关键词：

Co-precipitation; Magnetite; Iron oxide; Titration; Crystallinity; IRON-OXIDE NANOPARTICLES; MONODISPERSE;

D O I：

10.1179/1432891714Z.0000000001028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple and cost-effective chemical co-precipitation of aqueous ferrous and ferric salts was used to synthesis controlled size of magnetite iron oxide nanoparticles. The titration reactions between the aqueous Fe2+/Fe3+ salt solutions were controlled by an autotitrator unit with continuous addition of 1 M sodium hydroxide under different heating temperatures from 30 up to 80 degrees C in oxidising atmosphere. Then, further investigation on the degree of crystallinity of magnetite iron oxide nanoparticles was conducted by altering the concentration of Fe2+/Fe3+ ions in the ratio of 1:1, 1:1.25, 1:1.5 and 1:2. The resultant magnetite iron oxide nanoparticles were characterised by using X-ray diffraction, field emission scanning electron microscopy and Fourier transform infrared spectroscopy. The ratio of Fe2+/Fe3+ salt solutions and heating temperatures played a crucial role in controlling the morphology, crystallinity and particle sizes of magnetite magnetite iron oxide.

引用

页码：457 / 461

页数：5