Mutifuntional GdPO4:Eu3+ Hollow Spheres: Synthesis and Magnetic and Luminescent Properties

• Published in: Inorganic chemistry Vol. 50; no. 21; pp. 10608 - 10613
• Main Authors: Zhang, Lihui, Yin, Meili, You, Hongpeng, Yang, Mei, Song, Yanhua, Huang, Yeju
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 07.11.2011
• Subjects: Delayed-Action Preparations - analysis; Delayed-Action Preparations - chemical synthesis; Drug Carriers - analysis; Drug Carriers - chemical synthesis; Europium - chemistry; Gadolinium - chemistry; Humans; Luminescence; Magnetic Resonance Imaging - methods; Magnetics; Microscopy, Electron, Scanning; Microspheres; Molecular Imaging - methods; Nanotechnology - methods; Nanotubes - chemistry; Nanotubes - ultrastructure; Particle Size; Porosity; Spectrometry, Fluorescence
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/ic200867a

Mondispersed submicrometer GdPO4:Eu3+ hollow spheres were synthesized via an effective one-pot hydrothermal process. These hollow spheres have the average diameter of 200 nm, and the shell thickness is about 20 nm. The surface of the spheres consists of a number of nanorods with diameters of about 10 nm and lengths of about 50–80 nm. Both magnetic and luminescent properties of the obtained Eu3+-doped GdPO4 hollow spheres were investigated. The hysteresis plot (M–H) analysis result indicates their paramagnetic property. The fluorescence spectra demonstrate that they emit orange-red color light originated from the 5D0 → 7FJ transitions of the Eu3+ ions. Therefore, the obtained GdPO4 hollow spheres hold promise for encapsulate drugs with controlled release. Moreover, the GdPO4:Eu3+ hollow spheres are attributes for bimodal magnetic resonance imaging (MRI)/optical bioimaging labeling.