Assistanted solvothermal synthesis of nanocrystalline self-assembled CaWO4:Tb 3+ microspheres and luminescence properties

  • Liqin Qin ,
  • Huanggen Yang ,
  • De Chen ,
  • Pingfang Tao
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  • College of Chemistry and Food Science,Yulin Normal University,Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology,Yulin 537000,China

Received date: 2020-07-11

  Online published: 2021-01-08

Abstract

The nanocrystalline self-assembled CaWO4:Tb3+ microspheres were synthesized by solvothermal methods with wa-ter and N,N-dimethylformamide(DMF) as binary solvent and sodium succinate as auxiliary agent.The effects of the volume of N,N-dimethylformamide,the dosage of sodium succinate and the amount-of-substance fraction of Tb3+ on luminescence properties of CaWO4:Tb3+ were investigated in detail.The structure,morphology and properties of the product were character-ized by X-ray diffraction(XRD),UV-vis diffuse reflectance spectroscopy(DRS),scanning electron microscopy(SEM) and photoluminescence(PL) and dark-box ultraviolet analyzar etc..The results showed that the product was nanocrystalline self-assembled CaWO4:Tb3+ microspheres with the tetragonal structure,which could be obtained after solvothermal treatment with 5 mL DMF as solvent and 1.2 g sodium succinate as additive.The microsphere showed a strong emission peak at 257 nm and a strong fluorescence emission peak near 546 nm.The fluorescence intensity of the microspheres was 3.8 times higher than that of the corresponding product without sodium succinate.

Cite this article

Liqin Qin , Huanggen Yang , De Chen , Pingfang Tao . Assistanted solvothermal synthesis of nanocrystalline self-assembled CaWO4:Tb 3+ microspheres and luminescence properties[J]. Inorganic Chemicals Industry, 2021 , 53(1) : 36 -39 . DOI: 10.11962/1006-4990.2020-0118

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