Effect of Non-aqueous Media on Nano-crystalline SrFe 12 O 19 Particles Produced by Co-precipitation with Metal Chlorides and Evaluation of Their Magnetic and Photocatalytic Properties,Journal of Inorganic and Organometallic Polymers and Materials

当前位置： X-MOL 学术 › J. Inorg. Organomet. Polym. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Effect of Non-aqueous Media on Nano-crystalline SrFe 12 O 19 Particles Produced by Co-precipitation with Metal Chlorides and Evaluation of Their Magnetic and Photocatalytic Properties
Journal of Inorganic and Organometallic Polymers and Materials ( IF 4 ) Pub Date : 2020-01-02 , DOI: 10.1007/s10904-019-01414-7
Fatemeh Bavarsiha , Mehdi Montazeri-Pour , Masoud Rajabi

The strontium ferrite nano-crystals were prepared via co-precipitation method in different synthesis media including a mixture of ethanol and water (with a volume ratio equal to 3:1) and water. In this way, the iron and strontium chlorides with various molar ratios were utilized as sources for Fe³⁺ and Sr²⁺ ions, respectively. Phase analyses, structural properties and morphology of the SrFe₁₂O₁₉ powders were characterized by various techniques including X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometer and Fourier transform infrared spectra. Thermal decomposition behaviors of the as-synthesized precursors were monitored by DTA/TGA (differential thermal analysis/thermo-gravimetric analysis). The effects of molar ratio, calcination temperature and co-precipitation media of the strontium ferrite powder were investigated. The results of DTA indicated that the strontium hexaferrite prepared by co-precipitation in ethanol/water media was formed at a lower temperature. The maximum saturation magnetization of the strontium ferrite powder with the value of 58 emu/g was achieved at a temperature of 950 °C by a Fe³⁺/Sr²⁺ molar ratio of 12. Wide coercivity in the range of 1512–5764 Oe was observed by tuning calcination temperatures. Furthermore, the photocatalytic properties of the resultant optimum SrFe₁₂O₁₉ particles were assessed. The destruction of methylene blue dye was about 46% in the presence of the strontium ferrite under UV light irradiation for 120 min.

更新日期：2020-01-02

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南

全部期刊列表>>