Facile room-temperature coprecipitation of uniform barium chlorapatite nanoassemblies as a host photoluminescent material--颗粒学报PARTICUOLOGY

Zhai, P., Chen, X., Zhang, Z., Zhu, L., Zhang, H., & Zhu, W. (2018). Facile room-temperature coprecipitation of uniform barium chlorapatite nanoassemblies as a host photoluminescent material. Particuology, 37, 37-42. https://doi.org/10.1016/j.partic.2017.05.010

Facile room-temperature coprecipitation of uniform barium chlorapatite nanoassemblies as a host photoluminescent material

Peiyan Zhai, Xiuping Chen, Zhaoqiang Zhang, Lin Zhu, Heng Zhang, Wancheng Zhu ^*

Department of Chemical Engineering, Qufu Normal University, Shandong 273165, China

10.1016/j.partic.2017.05.010

Volume 37, April 2018, Pages 37-42

Received 4 April 2017, Revised 13 May 2017, Accepted 18 May 2017, Available online 6 September 2017, Version of Record 3 February 2018.

E-mail: zhuwancheng@tsinghua.org.cn

Highlights

• Ba₅(PO₄)₃Cl nanoassemblies were synthesized via a room-temperature coprecipitation.

• EDTA-2Na assisted formation of the Ba₅(PO₄)₃Cl nanoassemblies was discussed.

• 4.0% rare earth Tb³⁺-doped Ba₅(PO₄)₃Cl:xTb³⁺ was prepared.

• Ba₅(PO₄)₃Cl:xTb³⁺ nanophosphors exhibited four emission peaks under 228-nm excitation.

Abstract

As an emerging host phosphor material, barium chlorapatite (Ba₅(PO₄)₃Cl), is attracting growing attention. However, rare earth-doped Ba₅(PO₄)₃Cl phosphors have mainly been obtained via high temperature-based, energy-consuming techniques. In this contribution, we developed a straightforward, facile room-temperature coprecipitation method in the presence of a specific amount of ethylenediaminetetraacetic acid disodium salt that provided Ba₅(PO₄)₃Cl nanoparticles self-assembled to construct uniform Ba₅(PO₄)₃Cl nanoassemblies (diameter: 80–120 nm) as well as rare earth Tb³⁺-doped Ba₅(PO₄)₃Cl:xTb³⁺ nanophosphors. The nanoassemblies were transparent within the ultraviolet and visible spectral range. The Ba₅(PO₄)₃Cl:xTb³⁺ nanophosphors exhibited four emission peaks under 228-nm excitation, and the optimal doping amount of Tb³⁺ was 4.0%. In contrast to traditional energy-consuming, high-temperature techniques, the facile room-temperature coprecipitation method developed here represents an attractive alternative route to obtain uniform Ba₅(PO₄)₃Cl nanoassemblies and Ba₅(PO₄)₃Cl:xTb³⁺ nanophosphors that are candidate luminescent hosts.

Graphical abstract

Keywords

Barium chlorapatite; Nanoassemblies; Phosphors; Luminescence; Room-temperature coprecipitation

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