| 柠檬酸用量在燃烧法合成Y_2O_2S:Eu~(3+),Mg~(2+),Ti~(4+)中的影响 |
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| 引用本文： | 李向果,李延垒,梁振华,彭桂花.柠檬酸用量在燃烧法合成Y_2O_2S:Eu~(3+),Mg~(2+),Ti~(4+)中的影响[J].河南科学,2012,30(5):564-567. |
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| 作者姓名： | 李向果 李延垒 梁振华 彭桂花 |
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| 作者单位： | 1. 河南质量工程职业学院食品化工系,河南平顶山,467000
2. 广西师范大学化学化工学院,广西桂林,541004 |
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| 基金项目： | 河南省科学技术厅自然科学基金 |
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| 摘 要： | 研究了柠檬酸用量在溶液燃烧法合成Y2O2S:Eu3+,Mg2+,Ti4+中的影响,采用X射线衍射(XRD)、扫描电镜(SEM)、屏幕亮度计对样品进行了表征.研究结果表明,当柠檬酸与Y3+的物质的量比为1.4时,燃烧反应较缓和,样品为灰白色,X衍射谱线峰型尖锐,扫描照片显示其为形貌规则、边界清晰、分布均匀、厚度为50～80 nm、直径为200～300 nm的纳米片,发光亮度最好.
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| 关 键 词： | 柠檬酸 红色长余辉 燃烧合成 硫氧化钇 |
The Effects of Citric Acid Dosage on Combustion Synthesis of Y2O2S : Eu3+, Mg2+, Ti4+ |
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| Li Xiangguo
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Li Yanlei
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Liang Zhenhua
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Peng Guihua.The Effects of Citric Acid Dosage on Combustion Synthesis of Y2O2S : Eu3+, Mg2+, Ti4+[J].Henan Science,2012,30(5):564-567. |
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| Authors: | Li Xiangguo Li Yanlei Liang Zhenhua Peng Guihua |
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| Institution: | 1.Food and Chemical Department,Henan Quality Polytechnic,Pingdingshan 467000,Henan China; 2.College of Chemistry and Chemical Engineering,Guangxi Normal University,Guilin 541004,Guangxi China) |
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| Abstract: | The effects of citric acid dosage on combustion synthesis of Y2O2S：Eu^3＋,Mg^2＋,Ti^4＋ were studied.The phase composition,morphology and the brightness were investigated by X-ray diffraction（XRD）,scanning electron microscopy（SEM）,screen luminance meter（SLM）.The results showed that the combustion reaction was mild,the sample was grey white,X diffraction spectrum was sharp;SEM micrographs showed that the pattem of the sample was circular nanometer sheets with thickness in range of 50～80 nm and diameter in range of 200～300 nm,the shape was rule,boundary was clear,distribution was uniform,and its luminescence intensity reached maximum when molar ratio r=1.4（n（citric acid）/n（Y^3＋）=1.4）. |
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| Keywords: | citric acid red long afterglow combustion synthesis Y2O2S |
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