|本期目录/Table of Contents|

[1]伍宏明,陈虎,刘云飞,等.微波水热合成NaLa(MoO4)2:Eu3+微晶及其发光性能[J].南京工业大学学报(自然科学版),2015,37(03):41-45.[doi:10.3969/j.issn.1671-7627.2015.03.008]
 WU Hongming,CHEN Hu,LIU Yunfei,et al.Microwave-hydrothermal synthesis of NaLa(MoO4)2:Eu3+ microcrystals and luminescent properties[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(03):41-45.[doi:10.3969/j.issn.1671-7627.2015.03.008]
点击复制

微波水热合成NaLa(MoO4)2:Eu3+微晶及其发光性能()
分享到:

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年03期
页码:
41-45
栏目:
出版日期:
2015-05-30

文章信息/Info

Title:
Microwave-hydrothermal synthesis of NaLa(MoO4)2:Eu3+ microcrystals and luminescent properties
文章编号:
1671-7627(2015)03-0041-05
作者:
伍宏明陈虎刘云飞吕忆农洪慧敏
南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
WU HongmingCHEN HuLIU YunfeiLÜ YinongHONG Huiming
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
微波水热 棒状微晶 NaLa(MoO4)2:Eu3+ 荧光粉
Keywords:
microwave-hydrothermal rod-like microcrystals NaLa(MoO4)2:Eu3+ phosphors
分类号:
O482
DOI:
10.3969/j.issn.1671-7627.2015.03.008
文献标志码:
A
摘要:
采用微波水热法合成形貌规整、尺寸均一的短棒状和树枝状NaLa(MoO4)2:Eu3+微晶。研究反应温度、反应物浓度和反应时间对产物形貌的影响。结果表明:在反应物浓度为10 mmol/L条件下,当反应温度为100 ℃时,产物为纳米片状结构; 反应温度为150 ℃时,得到长约5 μm、直径约500 nm的棒状结构产物; 当反应物浓度为40 mmol/L,反应温度为150 ℃时,产物为树枝状结构。荧光性能分析表明,棒状和树枝状微晶在464 nm蓝光有效激发下,均发射出614 nm红光,对应于Eu3+5D07F2跃迁。棒状晶体的发光强度约为树枝状的10倍,这是由于棒状晶体较强的激发强度引起的。
Abstract:
Uniform NaLa(MoO4)2 microcrystals,including rod-like and dendrite-like,were synthesized by a microwave-hydrothermal method.The effects of reaction parameters,such as reaction temperature,concentration, and reaction time on the morphology and size of NaLa(MoO4)2 microcrystals were investigated.Results showed that with reagent concentration of 10 mmol/L,nano-plates were obtained at 100 ℃, and 1D rod-like microcrystals with about 5 μm in length and 0.5 μm in width were obtained at 150 ℃.With concentration of 40 mmol/L,dendritic microcrystals were obtained.Photoluminescence spectra(PL)revealed that the rod-like and dendrite-like microcrystals showed strong red light at 614 nm associated with 5D07F2 transition of Eu3+ at 464 nm blue excitation. The PL intensity of rod-like microcrystals was as 10 times as that of dendrite-like microcrystals,thus it was attributed to the strong excitation in the ultraviolet region.

参考文献/References:

[1] Kaczmarek A M,van Deun R.Rare earth tungstate and molybdate compounds-from 0D to 3D architectures[J].Chem Soc Rev,2013,42(23):8835-8848.
[2] Chen D,Ye J.Hierarchical WO3 hollow shells:dendrite,sphere,dumbbell,and their photocatalytic properties[J].Adv Funct Mater,2008,18(13):1922-1928.
[3] Li G,Lan S,Li L,et al.Tunable luminescence properties of NaLa(MoO4)2 Ce3+,Tb3+ phosphors for near UV excited white light emitting diodes[J].J Alloys Compd,2012,513:145-149.
[4] Kumar A,Kumar J.Perspective on europium activated fine-grained metal molybdate phosphors for solid state illumination[J].J Mater Chem,2011,21(11):3788-3796.
[5] Yang M,You H,Jia Y,et al.Synthesis and luminescent properties of NaLa(MoO4)2:Eu3+ shuttle-like nanorods composed of nanoparticles[J].Crystengcomm,2011,13(12):4046-4052.
[6] Fu Z,Xia W,Li Q,et al.Highly uniform NaLa(MoO4)2:Ln3+(Ln=Eu,Dy)microspheres:template-free hydrothermal synthesis,growing mechanism,and luminescent properties[J].Crystengcomm,2012,14(14):4618-4624.
[7] Zhang J,Wang X,Zhang X,et al.Microwave synthesis of NaLa(MoO4)2 microcrystals and their near-infrared luminescent properties with lanthanide ion doping(Er3+,Nd3+,Yb3+)[J].Inorg Chem Commun,2011,14(11):1723-1727.
[8] Li Y F,Tan S W,Jiang J Y,et al.Room-temperature synthesis,growth mechanism and properties of uniform CdMoO4 nano-octahedra[J].Crystengcomm,2011,13(7):2649-2655.
[9] Xu L,Yang X Y,Zhai Z,et al.Self-assembled 3D architectures of NaCe(MoO4)2 and their application as absorbents[J].Crystengcomm,2012,14(21):7330-7337.
[10] Bu W B,Chen Z X,Chen F,et al.Oleic acid/oleylamine cooperative-controlled crystallization mechanism for monodisperse tetragonal bipyramid NaLa(MoO4)2 nanocrystals[J].J Phys Chem C,2009,113(28):12176-12185.
[11] Li G H,Li L L,Li M M,et al.Hydrothermal synthesis and luminescent properties of NaLa(MoO4)2:Eu3+,Tb3+ phosphors[J].J Alloy Compd,2013,550:1-8.
[12] Li Y,Wang G,Pan K,et al.Formation and down/up conversion luminescence of Ln3+ doped NaY(MoO4)2 microcrystals[J].Dalton Trans,2013,42(10):3366-3372.
[13] Xu L,Yang X,Zhai Z,et al.EDTA-mediated hydrothermal synthesis of NaEu(MoO4)2 microrugbies with tunable size and enhanced luminescence properties[J].Crystengcomm,2011,13(15):4921-4929.

相似文献/References:

[1]戴沈华,刘云飞,吕忆农,等.微波水热法合成Eu3+掺杂的SrMoO4红色荧光粉[J].南京工业大学学报(自然科学版),2011,33(02):1.[doi:10.3969/j.issn.1671-7627.2011.02.001]
 DAI Shenhua,LIU Yunfei,LU Yinong,et al.Microwave-hydrothermal synthesis of Eu3+ -doped SrMoO4 red phosphor[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2011,33(03):1.[doi:10.3969/j.issn.1671-7627.2011.02.001]

备注/Memo

备注/Memo:
收稿日期:2014-02-24
基金项目:江苏高校优势学科建设工程
作者简介:伍宏明(1988—),男,贵州天柱人,硕士,主要研究方向为光电功能材料; 吕忆农(联系人),教授,E-mail:yinonglu@njtech.edu.cn.
引用本文:伍宏明,陈虎,刘云飞,等.微波水热合成NaLa(MoO4)2:Eu3+微晶及其发光性能[J].南京工业大学学报:自然科学版,2015,37(3):41-45..
更新日期/Last Update: 2015-05-20