亲水性CIT-NaYF_(4)∶Yb^(3+),Ho^(3+)纳米粒子的制备及其发光性能研究  

Preparation of hydrophilic CIT-NaYF_(4)∶Yb^(3+),Ho^(3+)nanoparticles and study on their luminescence properties

作　　者：白安琪 彭孔浩 宿欣瑶 其布尔 李淑荣[1,2] 孟佩俊 BAI An-qi;PENG Kong-hao;SU Xin-yao;QI Bu-er;LI Shu-rong;MENG Pei-jun(Public Health School,Baotou Medical College,Inner Mongolia University of Science&Technology,Baotou 014040,China;Engineering Technology Center of Hygienic Inspection and Assessment of Inner Mongolia Autonomous Region,Baotou 014040,China)

机构地区：[1]内蒙古科技大学包头医学院公共卫生学院,内蒙古包头014040 [2]内蒙古自治区卫生检测与评价工程技术中心,内蒙古包头014040

出　　处：《现代化工》2024年第9期119-124,131,共7页Modern Chemical Industry

基　　金：国家自然科学基金项目(82360656,81960601);内蒙古自治区高等学校青年科技英才支持项目(NJYT23026);内蒙古自治区自然科学基金(2023MS08009,2021MS08055);内蒙古自治区卫生健康委医疗卫生科技计划项目(202201383);包头医学院研究生科研创新项目(bycx2023006);内蒙古自治区大学生创新创业训练计划项目(S202310130001)。

摘　　要：采用溶剂热法制备了油溶性稀土掺杂上转换纳米粒子NaYF_(4)∶Yb^(3+),Ho^(3+),并利用TEM、XRD、IR、荧光光谱法等考察了反应温度、反应时间、掺杂比等反应条件对纳米粒子形貌、结构、发光性能的影响。结果表明,在反应温度为300℃、反应时间为50 min、稀土离子掺杂比为NaYF_(4)∶20%Yb^(3+),2%Ho^(3+)条件下,制备出的油溶性NaYF_(4)∶Yb^(3+),Ho^(3+)纳米粒子呈标准六方晶型,尺寸均一、单分散性好,平均粒径为31.55 nm。通过表面配体交换法成功将柠檬酸修饰在其表面,转为亲水性CIT-NaYF_(4)∶Yb^(3+),Ho^(3+)纳米粒子。NaYF_(4)∶Yb^(3+),Ho^(3+),oil-soluble rare earth doped up-conversion nanoparticles,are prepared through a solvothermal method.The influences of reaction temperature,reaction time and doping ratio on the morphology,structure and luminescence properties of the nanoparticles prepared are investigated by means of TEM,XRD,IR and fluorescence spectroscopy.Results show that the oil soluble NaYF_(4)∶Yb^(3+),Ho^(3+)nanoparticles have standard hexagonal crystals with uniform size and good mono-dispersity,and the average particle size is 31.55 nm when reaction temperature is 300℃,reaction time is 50 min,and rare earth ion doping ratio is higher than NaYF_(4)∶20%Yb^(3+),2%Ho^(3+).Citric acid is successfully modified on the surface of CIT-NaYF_(4)∶Yb^(3+),Ho^(3+)nanoparticles via surface ligand exchange method.

关 键 词：NaYF_(4)∶Yb^(3+) Ho^(3+) CIT-NaYF_(4)∶Yb^(3+) Ho^(3+) 配体交换法 柠檬酸 

分 类 号：O657[理学—分析化学]