Present work describes the synthesis of Sr₃Al₂O₆ nano powders by one-step solid state reactions using Al﴾NO₃)₃.6H₂O, Sr﴾C₂H₃O₂)₂ and Sr﴾NO₃)₂ at 800 and 900 ̊C for 8 h. For the synthesis of Sr₃M_xAl₂O_6 + δ ﴾M = Sm³⁺, Eu³⁺, Ho³⁺ and Yb³⁺) nano powders, Al﴾NO₃)₃.6H₂O, Sr﴾NO₃)₂, Eu₂O₃, Ho₂O₃ and Yb₂O₃ were used at 800 ̊C for 8 h. Characterization of the as-synthesized materials was performed by X-ray powder diffraction (XRPD) technique. The rietveld analyses data were studied to investigate the reaction conditions on the crystal phase growth and purity of the obtained materials. According to the rietveld analyses data, it was found that reaction temperature and raw materials type had important role on the crystal phase growth and purity. The data indicated that doping the lanthanide ions into Sr₃Al₂O₆ crystal phase improved the purity of the final products. The morphologies of the synthesized materials were studied by field emission scanning electron microscopy (FESEM) technique to study the effect of the reaction conditions on the morphology of the obtained materials. As shown by the FESEM measurements, Sr₃Al₂O₆ nanomaterials had almost particles and porous morphology. However, the type and homogeneity of the porous structures were different. BET data revealed that the reaction time and temperature, and the raw materials type had important roles on the textural properties. The data showed that the highest specific surface area value was 5 m²/g. Vibrating-sample magnetometer (VSM) analysis showed that the as-synthesized nanomaterials had ferromagnetic property. Ultraviolet–visible spectra indicated that the nanostructured Sr₃Al₂O₆ powder had absorption in the ultraviolet and visible light regions and the direct optical band gap energies were in the range of 3.4 to 3.8 eV. The data indicated that when Eu³⁺ was doped into the crystal system, a sharp absorption peak was observed in the visible light region suggesting the visible light region active property.

Graphical Abstract

目前的工作描述了使用Al（NO ₃）₃ .6H ₂ O，Sr（C ₂ H ₃ O ₂）₂和Sr（NO ₃）₂通过一步固态反应合成Sr ₃ Al ₂ O ₆纳米粉末。在800和900°C下放置8小时。对于Sr ₃ M _x Al ₂ O _{6 +δM} = Sm ³⁺，Eu ³⁺，Ho ³⁺和Yb ³⁺）纳米粉的合成，Al（NO ₃）₃ .6H在800°C下使用₂ O，Sr 2NO ₃）₂，Eu ₂ O ₃，Ho ₂ O ₃和Yb ₂ O ₃ 8 h。合成后的材料通过X射线粉末衍射（XRPD）技术进行表征。研究了rietveld分析数据以研究反应条件对所得材料的晶体相生长和纯度的影响。根据rietveld分析数据，发现反应温度和原料类型对晶相生长和纯度具有重要作用。数据表明将镧系元素离子掺杂到Sr ₃ Al ₂ O _6中结晶相改善了最终产物的纯度。通过场发射扫描电子显微镜（FESEM）技术研究了合成材料的形貌，以研究反应条件对所得材料形貌的影响。如FESEM测量结果所示，Sr ₃ Al ₂ O ₆纳米材料几乎具有颗粒和多孔形态。但是，多孔结构的类型和均质性不同。BET数据表明，反应时间和温度以及原料类型对织构性质具有重要作用。数据显示最高比表面积值为5 m ²/G。振动样品磁强计（VSM）分析表明，合成后的纳米材料具有铁磁性能。紫外可见光谱表明，纳米结构的Sr ₃ Al ₂ O ₆粉末在紫外和可见光区域具有吸收，直接光学带隙能量在3.4至3.8 eV的范围内。数据表明，当将Eu ³⁺掺杂到晶体系统中时，在可见光区域中观察到尖锐的吸收峰，表明可见光区域具有活性。

图形概要