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

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• 作者：Lihui Zhang ; Meili Yin ; Hongpeng You ; Mei Yang ; Yanhua Song ; Yeju Huang
• 刊名：Inorganic Chemistry
• 出版年：2011
• 出版时间：November 7, 2011
• 年：2011
• 卷：50
• 期：21
• 页码：10608-10613
• 全文大小：910K
• 年卷期：v.50,no.21(November 7, 2011)
• ISSN：1520-510X

文摘

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鈥?0 nm. Both magnetic and luminescent properties of the obtained Eu³⁺-doped GdPO₄ hollow spheres were investigated. The hysteresis plot (M鈥?i>H) analysis result indicates their paramagnetic property. The fluorescence spectra demonstrate that they emit orange-red color light originated from the ⁵D₀ 鈫?⁷F_J 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.