海胆状Eu_2O_3/Ag_3VO_4复合材料的水热合成及其光致发光性能
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摘要
以硝酸银和氧化铕为金属源,P123为结构导向剂,乙醇和水为溶剂。本文通过前驱体合成路线,采用水热法得到海胆状Eu_2O_3/Ag_3VO_4微球,并探讨其合成条件;采用SEM、XRD、XPS等方法对样品进行了表征,并探讨了Eu_2O_3/Ag_3VO_4海胆状微纳米结构的形成过程。测试结果表明:在反应温度为80℃,反应时间为10 h时,所合成的海胆状Eu_2O_3/Ag_3VO_4微球直径约为4~5μm。针对合成的样品,研究了海胆状Eu_2O_3/Ag_3VO_4微球的光致发光性能,并考察Eu~(3+)掺杂量对光致发光性能的影响,当Eu~(3+)掺杂量为4%时,样品具有最好的光致发光性能。
Using AgNO_3 and NH_4VO_3 as raw materials,Eu_2O_3 acted as metal source,P123 as the structure-director agent, ethyl alcohol and water as mixture solvent, urchin-like Eu_2O_3/Ag_3VO_4 microspheres were obtained by hydrothermal method,and the conditions of synthesis were also studied.The samples were characterized by SEM,XRD and XPS,moreover,the formation mechanism of urchinlike Eu_2O_3/Ag_3VO_4 was discussed,too. The results show that the diameter size of prepared urchin-like Eu_2O_3/Ag_3VO_4 microspheres is about 4-5 μm when the reaction temperature is 80 ℃ and the reaction time is 10 h. The effect of photoluminescence properties of Eu~(3+) doping content in the samples was investigated,and when the Eu~(3+) doping content was 4%,the samples have the best photoluminescence properties.
Using AgNO_3 and NH_4VO_3 as raw materials,Eu_2O_3 acted as metal source,P123 as the structure-director agent, ethyl alcohol and water as mixture solvent, urchin-like Eu_2O_3/Ag_3VO_4 microspheres were obtained by hydrothermal method,and the conditions of synthesis were also studied.The samples were characterized by SEM,XRD and XPS,moreover,the formation mechanism of urchinlike Eu_2O_3/Ag_3VO_4 was discussed,too. The results show that the diameter size of prepared urchin-like Eu_2O_3/Ag_3VO_4 microspheres is about 4-5 μm when the reaction temperature is 80 ℃ and the reaction time is 10 h. The effect of photoluminescence properties of Eu~(3+) doping content in the samples was investigated,and when the Eu~(3+) doping content was 4%,the samples have the best photoluminescence properties.
引文
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[10]Wang M,Li M,Yu A,et al.Rare Earth Fluorescent Nanomaterials for Enhanced Development of Latent Fingerprints[J].Acs Applied Materials&Interfaces,2015,7(51):28110-28115.
[11]Zuo S.Rare Earth-modified Kaolin/Na Y-supported Pd-Pt Bimetallic Catalyst for the Catalytic Combustion of Benzene[J].Acs Applied Materials&Interfaces,2014,6(15):11988-11996.
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[13]Singh J,Manam J.Structural and Spectroscopic Behaviour of Eu3+Doped Sr Gd2O4,Modified by Thermal Treatments[J].Journal of Materials Science,2016,51(6):2886-2901.
[14]Xu B,Wang G,Fu H.Enhanced Photoelectric Conversion Efficiency of Dye-sensitized Solar Cells by the Incorporation of Flower-like Bi2S3∶Eu3+Sub-microspheres[J].Scientific Reports,2016,6:23395.
[15]游维雄,肖宗梁,赖凤琴,等.Eu3+掺杂Gd4Zr3O12红色荧光粉的制备及其发光性能研究[J].中国稀土学报,2016,34(1):11-16.
[16]Xu H,Li H,Xu L,et al.Enhanced Photocatalytic Activity of Ag3VO4Loaded with Rare-Earth Elements under Visible-Light Irradiation[J].Ind.Eng.Chem.Res,2009,48(24):10771-10778.
[17]Moulder J F,Chastain J,King R C J.Handbook of X-ray Photoelectron Spectroscopy:a Reference Book of Standard Spectra for Identification and Interpretation of XPS Data[J].Chemical Physics Letters,1995,220(1):7-10.