A facile synthesis of luminescent YVO4:Eu3+ hollow microspheres in virtue of template function of the SDS–PEG soft clusters |
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| Institution: | 1. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russian Federation;2. Novosibirsk State University, Novosibirsk 630090, Russian Federation;3. Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, 142190 Moscow, Russian Federation;1. Departamento de Química Inorgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain;2. Departamento de Física de Materiales, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain;1. Department of Physics, Annamalai University, Annamalai Nagar;2. Physics Wing DDE, Annamalai University, Annamalai Nagar;1. Department of Physics, University of the Free State (Qwaqwa), Private Bag x13, Phuthaditjhaba 9866, South Africa;2. Department of Physics, University of the Free State, P. O. Box 339, Bloemfontein 9300, South Africa;1. College of Science, North University of China, Taiyuan 030051, People’s Republic of China;2. Chemical Engineering and Environment Institute, North University of China, Taiyuan 030051, People’s Republic of China |
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| Abstract: | Hollow europium-doped yttrium orthovanadate (YVO4:Eu3+) microspheres were fabricated via a sodium dodecyl sulfate (SDS)–polyethylene glycol (PEG)-assisted hydrothermal technique. The as-synthesized hollow YVO4:Eu3+ microspheres were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectroscopy (PL). The obtained results showed that the morphology and size of the hollow microspheres have a strong dependence on the hydrothermal reaction time of the YVO4:Eu3+ powders. It is believed that the SDS–PEG clusters perform a function of dual soft-template that results in a unique template-induced secondary assembly in the one-pot synthesis of hollow YVO4:Eu3+ microspheres. The photoluminescence measurement revealed that the YVO4:Eu3+ powders with a spherical hollow shape have better red luminescence compared to the YVO4:Eu3+ solid microspheres. As a result, the controlled synthesis of hollow YVO4:Eu3+ microspheres not only has a great theoretical significance in studying the three-dimensional control and selective synthesis of inorganic materials but also benefits the potential applications based on hollow YVO4:Eu3+ microspheres owing to reducing the usage of expensive rare-earth elements. |
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