Facile one-pot sonochemical synthesis of hydrophilicultrasmall LaF3:Ce,Tb nanoparticles withgreen luminescence |
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| Authors: | Lisha Zhang Wei Li Xianghua Hu Yanlin Peng Junqing Hu Xingyu Kuang Linlin Song Zhigang Chen |
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| Affiliation: | aState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Environmental Scienceand Engineering, Donghua University, Shanghai 201620, China;College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;College of Materials Science and Engineering, Donghua University, Shanghai 201621, China;College of Materials Science and Engineering, Donghua University, Shanghai 201622, China;College of Materials Science and Engineering, Donghua University, Shanghai 201623, China;College of Materials Science and Engineering, Donghua University, Shanghai 201624, China;College of Materials Science and Engineering, Donghua University, Shanghai 201625, China;College of Materials Science and Engineering, Donghua University, Shanghai 201626, China |
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| Abstract: | Rare earth nanoparticles (RENPs) have great superiority as luminescent materials for broadapplications, and a prerequisite for most of their application is to obtain hydrophilic RENPs with efficientluminescence and small diameter (o10 nm). To address this problem, we report a facile one-potsonochemical route with tetraethylene glycol as the solvent and tetrafluoroborate-based ionic liquid as thefluorine source for the synthesis of LaF3:Ce,Tb as the model of RENPs. LaF3:Ce,Tb nanoparticles withthe diameter of about 6 nm were prepared in a very short ultrasound time (10 min). Fourier transforminfrared spectrum reveals the presence of tetraethylene glycol ligands on their surface, which confers highsolubility of LaF3:Ce,Tb nanoparticles in water. Under 254 nm UV excitation, the aqueous dispersion ofLaF3:Ce,Tb nanoparticles exhibits strong green emission with luminescent quantum yield of 50%. Thiswork probably contributes to not only the fundamental research of shape-controlled LaF3:Ce,Tbnanoparticles but also new methods of producing other RENPs for broad applications. |
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| Keywords: | Sonochemical synthesis LaF3:Ce,Tb Nanoparticles Luminescence |
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