化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (6) : 102-104.

新材料与新技术

柠檬酸钠对球形NaGd(MoO₄)₂∶Eu³⁺纳米晶的溶剂热合成与发光性能影响

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Influence of sodium citrate on solvothermal synthesis and luminescence property of spherical NaGd(MoO₄)₂∶Eu³⁺ nanocrystals

Ai Fangyuan¹, Liu Lianli², Sun Yan¹, Ma Yayong¹, Zhao Han¹

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Received		Published
2018-01-12		2019-06-20
Issue Date	Revised Date
2019-07-05	2018-01-12

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摘要

采用以乙醇为溶剂的溶剂热法,以三氧化二钆(Gd₂O₃)和钼酸钠(Na₂MoO₄)为原料,柠檬酸钠(Na₃Cit)为表面活性剂,在pH=5,180℃条件下合成出铕离子(Eu³⁺)掺杂的球形双金属钼酸盐纳米粉体[NaGd(MoO₄)₂∶Eu³⁺],并对制备的产物的物相、形貌以及荧光性质进行表征,探讨了表面活性剂量对产物形貌及发光性能的影响。结果表明,在393nm激发条件下,不同形貌的NaGd(MoO₄)₂∶Eu³⁺纳米晶在612nm处均有很强发射峰,在Na₃Cit∶Gd₂O₃体积配合比为1∶3,Na₃Cit添加量为1mL,Eu³⁺用量为5%(wt,质量分数)条件下,合成的球形NaGd(MoO₄)₂∶Eu³⁺纳米晶颗粒均匀,荧光性较好。由此,表面活性剂Na₃Cit的添加量对产物的形貌及发光性能起到重要作用。

Abstract

Spherical duplex metal molybdate nanopowders doped with Eu³⁺ (NaGd(MoO₄)₂∶Eu³⁺) were synthesized with the surfactant of sodium citrate at 180℃ and pH=5 using the raw materials of Gd₂O₃ and Na₂MoO₄ via an ethanol solvothermal process.The phase,morphology and luminescence property of the products prepared with different amounts of the surfactant were characterized.The effect of the surfactant amounts on the microstructure and luminescence property of the products were also discussed.The results showed that all NaGd(MoO₄)₂∶Eu³⁺ with different morphologies had strong emission peaks at 612nm under the excitation of 393nm.With the n(sodium citrate)/n(Gd³⁺) volume ratio of 1∶3,the adding/surfactant amount of 1mL and the Eu³⁺ content of 5wt%,the spherical NaGd(MoO₄)₂∶Eu³⁺ showed homogeneous particles with excellent luminescence property.Thus,the adding amount of surfactant played an important role in the morphology and luminescence property of the products.

关键词

球形 / 溶剂热合成 / Na₃Cit / 形貌 / 发光性能

Key words

sphericity / solvothermal synthesis / sodium citrate / morphology / luminescence property

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柠檬酸钠对球形NaGd(MoO₄)₂∶Eu³⁺纳米晶的溶剂热合成与发光性能影响[J]. 化工新型材料, 2019, 47(6): 102-104 DOI:

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