YbFeTi2O7 Nanoparticles as Magnetically Separable Photocatalyst for Degradation of Methylene Blue under Visible Light Irradiation
نویسندگان
1 College of Health and Medical Techniques, Northern Technical University, Al-Dour, Iraq
2 Department of Physics, College of Science, University of Sumer, Iraq
3 Collage of Pharmacy, National University of Science and Technology, Dhi Qar, 64001, Iraq
4 Department of Anesthesia Techniques and Intensive Care, Al-Taff university College, 56001, Kerbala, Iraq
5 College of Technical Engineering, National University of Science and Technology, Dhi Qar, Iraq
6 College of Health and Medical Techniques, Northern Technical University, Al-Dour, Iraq
doi
10.22052/JNS.2025.04.068چکیده
YbFeTi2O7 nanoparticles (YFTO) were synthesized by the sol-gel method. The nanoparticles exhibited superior photocatalytic activity under visible light irradiation, confirmed by diffuse reflectance spectroscopy (DRS). Enhanced visible light absorption along with a proper band gap value of 2.44 eV validated the potential of synthesized nanoparticles as the visible light photocatalyst. Methylene blue (MB) aqueous solution was chosen as an organic pollutant to investigate the photocatalytic efficiency of the YFTO nanoparticles. After 120 min illumination under visible light, more than 95% of the MB solution was degraded using 0.03 g of the YFTO nanoparticles. Some of the important determinants, including amount of photocatalyst and pH of MB solution, were considered to find the optimal conditions for photoactivity of the YFTO nanoparticles. Due to demonstrating the superparamagnetic property, the YFTO nanoparticles offered the ease of recovery which is crucial to provide significant reusability. In this regard, the magnetically separable YFTO showed great reusability over 5 consecutive reaction cycles. The photodegradation mechanism was studied using different radical scavenger agents, showing that hydroxyl (•OH) and superoxide (•O2‾) radicals involved in the degradation of MB molecules.
