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Gd2O2SO4:Yb3+,Er3+纳米胶囊的合成及药物缓释研究
发布时间:2016
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论文题目 水热煅烧法合成Gd2O2SO4:Yb3+,Er3+纳米粒子及其上转换发光
作者姓名 刘凡,王旭日,张静,杨彦宇,张兆任,连景宝
是否发表 刊 号 ISSN1229-9162
期刊名称 Journal of Ceramic Processing Research 期刊期次 2016年17卷12期
项目名称 Gd2O2SO4:Yb3+,Er3+纳米胶囊的合成及药物缓释研究
项目类型 创新训练项目
项目编号 201610148031 学科类别 材料科学——纳米材料
立项年份 2016 联系QQ号 1169488759
项目组成员 姓 名 年 级 专 业 是否主持人
刘凡金材1401金属材料工程第一主持人
王旭日金材1401金属材料工程第二主持人
杨彦宇金材1401金属材料工程
张静金材1401金属材料工程
张兆任金材1401金属材料工程
指导老师 姓 名 职称 研究方向
连景宝 副教授 光功能材料
张雪 讲师 生物医用材料
论文摘要

The Gd2O2SO4:Yb3+,Er3+ nanoparticles were synthesized by a general and facile hydrothermal synthesis followed by calcination utilizing commercially available Gd2O3, Yb2O3, Er2O3,HNO3, urea and C12H25SO4 Na as the starting materials. The precursor and the synthetic products were characterized by a variety of characterization tools. The results reveal that the precursor is composed of gadolinium hydroxyl, carbonate and sulfate groups and could be converted into pure Gd2O2SO4 phase by calcining at 800 oC for 2 hrs in air. The good crystallinity and dispersion of near-spherical Gd2O2SO4 nanoparticles were obtained with an average diameter of about 50 nm. Under 980 nm infrared light excitation, the Gd2O2SO4:Yb3+,Er3+ nanoparticles present the strongest red emission (664 nm), which corresponds to the 4F9/24I15/2 transition of Er3+ ions. Moreover, two green emission peaks are located at 546 nm and 526 nm, resulting from the  4S3/24I15/2 and  2H11/24I15/2 transitions of Er3+ ions, respectively. When the concentration of Er 3+ ions reaches 2%, the Gd2O2SO4:Yb3+,Er3+ nanoparticles show the highest luminescence. The Ln(I up )-Ln(P) plots confirm that the up-conversion (UC) excitation belongs to two-photon (4F9/24I15/2  and  4S3/24I15/2) and three-photon (2H11/24I15/2) absorption mechanisms.

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学术成果

[1] 刘 凡,王旭日,张 静,杨彦宇,张兆任,连景宝. Gd2O2S∶ Yb3+,Er3+ 纳米粉体的水热-还原法制备及其上转换发光性能研究[J],人工晶体学报,2017,46(2): 285-290.

[2] Jingbao Lian, Fan Liu, Jing Zhang, Yanyu Yang, Xuri Wang, Zhaoren Zhang, Feng Liu Template-free hydrothermal synthesis of Gd2O2SO4 :Eu3+hollow spheres based on urea-ammonium sulfate (UAS) system[J], OPTIK, 2016,127:8621-8628.

[3] Jingbao Lian, Fan Liu, Ping Liang, Jianmin Ren, Feng Liu. Synthesis of Gd2O2S:Eu3+ hollow sphere by a hydrothermal method assisting with reduction route[J], Journal of Ceramic Processing Research, 2016, 17: 752-757.

[4]  连景宝,刘 凡,王旭日,张 静,杨彦宇, 张兆任. Gd2O2S:Pr3+荧光粉的合成与发光性能研究[J],中国材料进展,2016,35(5):391-395.

 

 

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