Annealing Temperature Dependence on Magnetic Properties, Crystalline Structure and Photocatalyst Activity of Coprecipitated Cobalt Ferrite (CoFe2O4) Synthesised from Natural Iron Sand

IF 1.2 Q3 MULTIDISCIPLINARY SCIENCES

Journal of Physical Science Pub Date : 2023-08-25 DOI:10.21315/jps2023.34.2.6

Budi Purnama, Arga Dwi Suwandi, Rudi Hartono, Sahirul Alim Tri Bawono, Utari Utari, Herman Aldila, Adi Rahwanto, Kusumandari Kusumandari

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引用次数: 2

Abstract

Cobalt ferrite (CoFe2O4) nanopowder was successfully synthesised by the coprecipitation method. For the entire experiment, natural iron sand from the Bengawan Solo River is used as an iron (Fe) cation source. The effect of the annealing temperature of a coprecipitated CoFe2O4 sample from natural iron sand was investigated. The presence of strong metal oxide bond groups at the tetrahedral and octahedral sites is revealed by fourier transform infrared (FTIR) spectral results, owing to the CoFe2O4 characteristic. Then the X-ray diffraction (XRD) pattern confirmed the formation of a single-phase CoFe2O4 with face centred cubic (FCC) crystal structure closely matched to reference data ICDD221086. The crystalline parameters such as lattice parameter and crystallite size modify with the increase of annealing temperature. The saturation magnetisation (Ms) decreases as the annealing temperature rises. In addition, the coercive fields (Hc) increases as the annealing temperature rises. As a result, the annealing temperature affects the performance of the CoFe2O4 photocatalyst. The photocatalytic performance of the annealing temperature sample at 300°C was found to be the best.

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退火温度对天然铁砂合成共沉淀钴铁氧体(CoFe2O4)磁性、晶体结构和光催化剂活性的影响

采用共沉淀法成功合成了钴铁氧体(CoFe2O4)纳米粉体。在整个实验中，本加湾索罗河的天然铁砂被用作铁(Fe)阳离子源。研究了退火温度对天然铁砂共沉淀CoFe2O4样品的影响。傅里叶红外(FTIR)光谱结果显示，由于CoFe2O4的特性，在四面体和八面体位置存在强金属氧化基团。x射线衍射(XRD)图证实形成了面心立方(FCC)晶体结构与参考数据ICDD221086密切匹配的单相CoFe2O4。晶粒参数如晶格参数和晶粒尺寸随退火温度的升高而改变。饱和磁化强度(Ms)随退火温度的升高而减小。随着退火温度的升高，矫顽场(Hc)增大。因此，退火温度会影响CoFe2O4光催化剂的性能。发现300℃退火温度下样品的光催化性能最好。

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来源期刊

Journal of Physical Science Physics and Astronomy-Physics and Astronomy (all)

CiteScore

1.70

自引率

0.00%

发文量

期刊介绍： The aim of the journal is to disseminate latest scientific ideas and findings in the field of physical sciences among scientists in Malaysia and international regions. This journal is devoted to the publication of articles dealing with research works in Chemistry, Physics and Engineering. Review articles will also be considered. Manuscripts must be of scientific value and will be submitted to independent referees for review. Contributions must be written in English and must not have been published elsewhere.