Influence of pH on the Morphology and Luminescence Properties of Europium-Doped Hydroxyapatite Nanoparticles

Abstract:

Luminescence behaviors and morphology of Eu³⁺ doped hydroxyapatite synthesized under different pH values were well investigated by X-ray diffraction (XRD), scanning electronic microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Inductively Coupled Plasma (ICP) (ICP–PLASMA 1000), and photoluminescence (PL) spectroscopy. Results revealed that With pH values increased from 6.5 to 10.0, the morphology of nano-Eu:HA particles changes from rod particles to equiaxed particles. The actual doping concentration and aspect ratio of Eu³⁺-doped HA decreased with the increasing of pH value. At the same time, the fluorescence intensity also tends to weakly lower with the increasing of pH value, which indicated that the luminescence properties mainly depended on the actual Eu³⁺ doping concentration, the influences of morphology on the luminescence properties were slight.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 1132-1137
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.1132
• Online since: December 2011
• Authors: Su Ping Huang, Jun Zhu, Ke Chao Zhou
• Keywords: Eu³⁺-Doped HA, Luminescence Property, Morpholoy, One-Step Hydrothermal Method

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