无机材料学报 ›› 2016, Vol. 31 ›› Issue (12): 1363-1369.DOI: 10.15541/jim20160079 CSTR: 32189.14.10.15541/jim20160079

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Dy, Cr共掺杂ZnGa2O4长余辉纳米粒子的制备及发光性能研究

阿不都卡德尔·阿不都克尤木, 艾力江·吐尔地, 热娜古丽·阿不都热合曼, 马木提江·吐尔逊, 努尔比亚·努尔买提   

  1. (喀什大学 化学与环境科学学院、新疆特色药食用植物资源化学自治区重点实验室, 喀什 844007)
  • 收稿日期:2016-02-01 修回日期:2016-05-06 出版日期:2016-12-16 网络出版日期:2016-11-23
  • 基金资助:
    国家自然科学基金(21565017);新疆维吾尔自治区高校科研计划资助项目(XJEDU2014I038);喀什大学高层次人才科研启动经费项目(GCC15ZK-006);National Natural Science Foundation of China (21565017);Scientific Research Program of the Higher Education Institution of Xinjiang (XJEDU2014I038);Scientific Research Foundation for the High-level talent of Kashgar University (GCC15ZK-006)

Synthesis and Luminescence Properties of Dy,Cr Co-doped ZnGa2O4 Persistent Luminescence Nanoparticles

ABDUKAYUM Abdukader, TUERDI Ailijiang, ABDURAHMAN Renagul, TURSUN Mamutjan, NURMAT Nurbiya   

  1. (Xinjiang Laboratory of Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Science, Kashgar University, Kashgar 844007, China)
  • Received:2016-02-01 Revised:2016-05-06 Published:2016-12-16 Online:2016-11-23

摘要:

以乙二醇辅助水热法制备了Dy3+, Cr3+共掺杂ZnGa2O4的小尺寸、近红外长余辉纳米粒子(PLNPs)。通过优化反应条件、锌的比例和共掺杂稀土离子Dy3+等措施, 不仅提高了PLNPs的余辉发光性能, 而且有效控制了PLNPs的粒径。结果表明, 当起始溶液pH为7、Ga:Zn的比例为2:1.2、Dy3+的掺杂量为1%时, 所合成的PLNPs的尺寸在6 nm左右, 而且具有良好的余辉发光性能, 其近红外余辉时间大于72 h, 在高信噪比生物医学成像中具有潜在应用价值。

关键词: 镓酸锌, 长余辉纳米颗粒, 余辉发光时间, 水热法, 近红外

Abstract:

Dy3+, Cr3+ co-doped ZnGa2O4 persistent luminescence nanoparticles (PLNPs) with long near-infrared afterglow were synthesized by an ethylene glycol assisted hydrothermal method. Persistent luminescence properties of the PLNPs are improved and size of the PLNPs is controlled efficiently via optimization of reaction condition, modification of zinc ratio and co-doping of Dy3+ ion. The results show that the PLNPs have long afterglow time more than 72 h and small grain size of approximately 6 nm, when the pH of the reaction solution, Ga:Zn ratio and doping amount of Dy3+ are 7, 2:1.2 and 1%, respectively. The as-prepared PLNPs exhibit great potential as a molecular probe for biomedical imaging with high signal to noise ratio.

Key words: zinc gallate, persistent luminescence nanoparticles, afterglow time, hydrothermal method, near infrared

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