Kaczmarek Anna M, Ndagsi Dorine, Van Driessche Isabel, Van Hecke Kristof, Van Deun Rik
L3-Luminescent Lanthanide Lab, Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium.
Dalton Trans. 2015 Jun 14;44(22):10237-44. doi: 10.1039/c5dt00764j.
In this paper, various microstructures of Ce2(WO4)3 and Ce10W22O81 were prepared by applying a hydrothermal synthesis, in a ligand-free environment, and in the presence of a dioctyl sodium sulfosuccinate (DSS) surfactant, after which the materials were heat treated at a temperature of 900 °C. Depending on the ratio of cerium ions to sodium tungstate, as well as the reaction pH, two different cerium tungstate materials were obtained. The source of cerium, and the presence or absence of the surfactant had a significant influence on the morphology of the final product. The photoluminescence properties of Tb(3+) doped cerium tungstate materials were investigated. Luminescence measurements showed an efficient charge transfer from the tungstate groups to the Tb(3+) ions. All the materials emitted blue or green light under UV excitation.
在本文中，通过水热合成法，在无配体环境以及存在磺基琥珀酸二辛酯钠（DSS）表面活性剂的条件下制备了Ce2(WO4)3和Ce10W22O81的各种微观结构，之后将材料在900℃的温度下进行热处理。根据铈离子与钨酸钠的比例以及反应pH值，获得了两种不同的钨酸铈材料。铈的来源以及表面活性剂的存在与否对最终产物的形态有显著影响。研究了Tb(3+)掺杂的钨酸铈材料的光致发光性能。发光测量表明存在从钨酸根基团到Tb(3+)离子的有效电荷转移。所有材料在紫外激发下均发射蓝光或绿光。
