Luminescent and magnetic properties of multifunctional europium(Ⅲ) complex based nanocomposite

作者：Hoang Thi Khuyen^*; Nguyen Thanh Huong; Tran Thu Huong; Pham Thi Lien; Do Thi Anh Thu; Nguyen Thi Anh Huong; Wieslaw Strek; Le Quoc Minh

来源：Journal of Rare Earths, 2019, 37(11): 1237-1241.

The luminescent rare earth(RE) complex based multifunctional nanocomposites offer new potential applications of multimodal imaging(magnetic resonance imaging(MRI),fluorescent bioimaging,etc.)that can be associated with therapeutic activities.In this study,we report some results obtained with novel multifunctional Fe3O4/Si-amine/Eu(NTA)3 nanocomposites that are composed of europium(Ⅲ)complex with 1-(2-naphthoyl)-3,3,3-trifluoroacetone ligands(NTA)(Eu(NTA)3) and superparamagnetic Fe3O4 nanoparticles.These nanocomposites were functionalized with an amine group for biomedicine application.The multifunctional Fe3O4/Si-amine/Eu(NTA)3 nanocomposites exhibit both good magnetic behavior of Fe3O4 nanoparticles as a core and strong fluorescent property of europium(Ⅲ) complex.Their characterizations were analyzed by XRD,SEM,EDX and FTIR spectra.The optical properties were studied in detail by UV-VIS spectra and luminescent emission spectra.The magnetic property was estimated by VMS.The effect of concentrations of luminescent Eu(NTA)3 complex on luminescent and magnetic properties is discussed.