化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 61-63.

新材料与新技术

球形SrSnO₃:Eu³⁺纳米晶的水热合成及其发光性能研究

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Hydrothermal synthesis and luminescence of spherical SrSnO₃:Eu³⁺ nanocrystal

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

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Received		Published
2017-09-26		2019-02-20
Issue Date	Revised Date
2019-03-18	2017-09-26

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摘要

采用水热合成法,以四水钨酸钠(Na₂SnO₃·4H₂O)和氯化锶(SrCl₂)为原料,酒石酸钾钠为表面活性剂,在pH=12、温度为200℃条件下,通过调控反应时间制备出球形锡酸锶(SrSnO₃):Eu³⁺纳米晶。通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)及荧光光谱仪对水热反应时间不同条件下制备的产物物相、形貌以及荧光性质进行了表征,考察了反应时间对产物形貌及发光性能的影响。结果表明:不同水热反应时间下制备的产物均为纯相钙钛矿结构SrSnO₃:Eu³⁺纳米晶;球形SrSnO₃:Eu³⁺纳米晶的最佳合成条件为pH=12、反应温度200℃、水热反应时间24h;球形SrSnO₃:Eu³⁺纳米晶在393nm波长激发下,在614nm处均有很强发射峰。

Abstract

Spherical SrSnO₃:Eu³⁺ nanocrystals were prepared using potassium sodium tartrate as surfactant,Na₂SnO₃·4H₂O and SrCl₂ as raw materials,at pH=12 and 200℃ via hydrothermal method.The products were characterized by X ray diffraction (XRD),scanning electron microscopy (SEM) and fluorescence spectra (PL) for the phase,morphology and luminescence property.The effect of reaction time on the morphology and luminescence property of products was discussed.The results showed that SrSnO₃:Eu³⁺ nanocrystals with pure perovskite structure were prepared under different hydrothermal reaction times.The best synthesis conditions were:pH=12,hydrothermal reaction temperature was 200℃,and hydrothermal reaction time was 24h.SrSnO₃:Eu³⁺ nanocrystals showed a strong emission peak at 614nm at 393nm excitation.

关键词

水热合成 / 锡酸锶 / 酒石酸钾钠 / 球形 / 发光性能

Key words

hydrothermal synthesis / SrSnO₃ / potassium sodium tartrate / spherical shape / luminescence property

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球形SrSnO₃:Eu³⁺纳米晶的水热合成及其发光性能研究[J]. 化工新型材料, 2019, 47(2): 61-63 DOI:

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