1Department of Physics, Faculty of Sciences and Mathematics, Andalas University, Padang, Indonesia
2Department of Chemistry, Faculty of Sciences and Mathematics, Andalas University, Padang, Indonesia
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@article{JKSA49246, author = {Astuti Astuti and Syukri Arief and Devi Pebrina}, title = {Effect of the Amount of Carbon in the Fe3O4@ZnO-C Nanocomposites on Its Structure and Magnetic Properties}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {25}, number = {10}, year = {2022}, keywords = {Fe3O4@ZnO nanocomposite; coprecipitation; magnetic properties; carbons}, abstract = {Synthesis and characterization of structure magnetic properties of Fe 3 O 4 @ZnO- C nanocomposite have been done through the precipitation method. This study aimed to discover the effect of concentrations/thickness of carbon layer on crystal structure and magnetic properties of Fe 3 O 4 @ZnO-C nanocomposites. Fe 3 O 4 and Fe 3 O 4 @ZnO were the samples used in the study, and variations in the amount of carbon were 0.2, 0.1, and 0.05 g. Nanocomposites were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and vibrating sample magnetometer (VSM). Based on the results of XRD, it has been found that the crystal structure for Fe 3 O 4 was cubic, while ZnO was hexagonal wurtzite. The addition of carbons to Fe 3 O 4 @ZnO caused a broadening of the diffraction peaks and a decrease in the degree of crystallinity. The bonds formed on Fe 3 O 4 @ZnO-C nanocomposites, i.e. Fe-O bonds indicated the formation of Fe 3 O 4 , Zn-O bonds showed the formation of ZnO and C-O, C-H, and O-H bonds revealed the presence of a carbon layer originated from glucose. The VSM results showed that the magnetic saturation decreased with increasing carbon mass. Overall, the carbon-coated nanocomposite material with a carbon mass variation of 0.2, 0.1, and 0.05 g showed superparamagnetic properties with a magnetic saturation of 18.23 emu/g, 19.33 emu/g and 22.05 emu/g, while for the coercive field of 92.29 Oe, 92.90 Oe and 89.60 Oe, respectively. Based on these characterization results, Fe 3 O 4 @ZnO-C nanocomposite materials can potentially be developed as biomedical materials, such as the materials for photothermal therapy for cancer cells.}, issn = {2597-9914}, pages = {362--367} doi = {10.14710/jksa.25.10.362-367}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/49246} }
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