辅助溶剂热法合成纳米晶自组装CaWO4：Tb 3+微球及其发光性能

doi:10.11962/1006-4990.2020-0118

Abstract

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.

Key words: self-assembled, solvothermal methods, sodium succinate, photoluminescence properties

CLC Number:

TQ136.13

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

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References 15

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

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