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

无机盐工业 ›› 2021, Vol. 53 ›› Issue (1): 36-39.doi: 10.11962/1006-4990.2020-0118

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

覃利琴(),杨黄根(),陈德,陶萍芳

玉林师范学院化学与食品科学学院,广西农产资源化学与生物技术重点实验室,广西玉林 537000

收稿日期:2020-07-11 出版日期:2021-01-10 发布日期:2021-01-08
通讯作者: 杨黄根
作者简介:覃利琴（1981— ）,女,硕士,高级实验师,主要从事无机纳米材料的制备及性能研究;E-mail： qinliqin8888@163.com。
基金资助:
国家自然科学基金(21767029);广西自然科学基金(2017GXNSFAA198197)

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

Qin Liqin(),Yang Huanggen(),Chen De,Tao Pingfang

College of Chemistry and Food Science,Yulin Normal University,Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology,Yulin 537000,China

Received:2020-07-11 Online:2021-01-10 Published:2021-01-08
Contact: Yang Huanggen

摘要/Abstract

摘要：

以水和N,N-二甲基甲酰胺（DMF）为二元溶剂,丁二酸钠为辅助剂的溶剂热法合成纳米晶自组装CaWO₄：Tb³⁺微球。探讨N,N-二甲基甲酰胺的用量、丁二酸钠的用量及Tb³⁺掺杂物质的量分数对发光性能的影响。利用X射线衍射（XRD）、紫外漫反射（DRS）、扫描电镜（SEM）、光致发光光谱（PL）、暗箱式紫外分析仪等对产物结构、形貌及其性能进行表征。实验表明：添加5 mL的DMF作为溶剂,加入1.2 g丁二酸钠为辅助剂,合成的产物为四方晶相的纳米晶自组装CaWO₄：Tb³⁺微球。该微球在257 nm激发下表现出强发射峰,在546 nm 附近有较强的荧光发射峰,荧光强度是未添加丁二酸钠对应产物的3.8倍。

关键词: 自组装, 溶剂热法, 丁二酸钠, 发光性能

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

中图分类号:

TQ136.13

覃利琴,杨黄根,陈德,陶萍芳. 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[J]. 无机盐工业, 2021, 53(1): 36-39.

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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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

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

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