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چکیده
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In recent years, the development of efficient photocatalytic materials has gained significant attention due to their potential applications in environmental remediation and wastewater treatment. In This research, NiFe2O4 nanoparticles, Titanum oxide and a reduced graphene oxide nanocomposite (NiFe2O4@TiO2@rGO) were synthesized using hydrothermal method. Afterwards, characterization, and potential applications of NiFe2O4@TiO2@rGO for enhancement of photocatalytic absorption was investigated. The synthesized materials were characterized using a combination of techniques, including FESEM, XRD, TEM, FTIR, VSM, and photocatalytic degradation experiments. The obtained result of XRD analysis confirmed presence of the spinel phase of NiFe2O4 in the nanoparticles, as well as the presence of nickel ferrite and anatase phase of titanium dioxide in the nanocomposite. Interestingly, no clear peak of rGO was observed in the nanocomposite, suggesting effective coverage of the rGO surface by the nickel ferrite and titanium dioxide nanoparticles. TEM images revealed well-defined shapes and uniform sizes for both NiFe2O4 nanoparticles and the NiFe2O4@TiO2@rGO nanocomposite, indicating precise control over the synthesis process. The cubic shape of the NiFe2O4 nanoparticles aligned with their spinel structure, while the smaller particle size of the nanocomposite corroborated the XRD findings. The uniform distribution of the nanoparticles on the rGO surface suggested favorable interaction and uniform coverage. VSM analysis demonstrated that the magnetic properties of the NiFe2O4 sample were superior, with higher saturation magnetization (Ms) value and remanence compared to the NiFe2O4@TiO2@rGO sample, which exhibited higher coercivity. Furthermore, the photocatalytic degradation experiments revealed that the NiFe2O4@TiO2@rGO nanocomposite exhibited the highest photocatalytic properties for the destruction of methylene blue (MB) compared to NiFe2O4.
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