Fabrication and Characterization of Luminescent Magnetic Bifunctional Nanocomposite Based on TbPO4·H2O Nanowires and Fe3O4 Nanoparticles

• Published in: Journal of electronic materials 2016-07, Vol.45 (7), p.3646-3650
• Main Authors: Huong, Nguyen Thanh, Hung, Nguyen Manh, Lien, Pham Thi, Van, Nguyen Duc, Nam, Pham Hong, Binh, Nguyen Thanh, Minh, Le Quoc
• Format: Article
• Language: English
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Electronics and Microelectronics; Instrumentation; Materials Science; Optical and Electronic Materials; Solid State Physics
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-016-4555-9

The fabrication and properties of luminescent magnetic bifunctional nanocomposites comprised of TbPO 4 ·H 2 O nanowires as a core and magnetite nanoparticles as a shell are presented. TbPO 4 ·H 2 O nanowires were synthesized by a microwave-assisted method while the grafting process of freshly-formed superparamagnetic magnetite nanoparticles on the surface of luminescent nanowires was carried out by a co-precipitate method. The effects of the Fe 3 O 4 /TbPO 4 ·H 2 O mass ratio on the luminescent and magnetic properties of the obtained nanocomposite were also investigated. The results showed that, for the optimized bifunctional nanocomposites, green luminescent emissions at 488 nm, 542 nm, 585 nm, 620 nm and superparamagnetic behavior with saturation magnetization M s of 6 emu/g were achieved. With a hyperthermia temperature of ~43.5°C under an alternating current (AC) magnetic field, the obtained TbPO 4 ·H 2 O/Fe 3 O 4 nanocomposite was expected to be used for both optical probing and hyperthermia cancer treatments in biomedical applications.