Synthesis of Tenoltrifluoroacetone Composite Doped with Terbium, Dysprosium and Europium Encapsulated in Silica Oxide Matrix  

作　　者：Yazmin Francisco Dulce Medina Miguel Barron Joan Reyes Pedro Adrian Martinez Angel de Jesus Morales Elizabeth Garfias Yazmin Francisco;Dulce Medina;Miguel Barron;Joan Reyes;Pedro Adrian Martinez;Angel de Jesus Morales;Elizabeth Garfias(Universidad Autónoma Metropolitana, Departamento de Materiales, Ciencias Básicas e Ingeniería, Reynosa Tamaulipas, México;Instituto Politécnico Nacional, ESIQIE, UPALM S/N, Mexico City, México)

机构地区：[1]Universidad Autónoma Metropolitana, Departamento de Materiales, Ciencias Básicas e Ingeniería, Reynosa Tamaulipas, México [2]Instituto Politécnico Nacional, ESIQIE, UPALM S/N, Mexico City, México

出　　处：《Journal of Surface Engineered Materials and Advanced Technology》2020年第4期63-74,共12页表面工程材料与先进技术期刊（英文）

摘　　要：The synthesis of the thenoyltrifluoroacetone compound doped with terbium, dysprosium and europium encapsulated in a silica matrix (TTA:Tb:Dy:Eu@SiO₂) were performed by the sol-gel method. The precursors to obtain the vitreous phase (SiO₂) were: Tetraethylorthosilicate (TEOS, C₈H₂O₄Si, 98%, Aldrich), and ethyl alcohol (CH₃CH₂OH, 99.5%, Meyer), distilled water and 0.05 ml of hydrochloric acid (HCl, Meyer). The sample with molar ratio 20:80 TTA:Tb:Dy:Eu@SiO₂ has the best emission intensity. Thermogravimetric analysis (TGA) shown that silica encapsulated samples decompose at lower temperatures than pure TTA:Tb:Dy:Eu luminescent material. Fourier Transform Infrared (IR-TF) shown the characteristic Si-O-Si bands that are presented at a wavelength of 1049, 853 and 440 cm^{<span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#FFFFFF;">&#45</span>1} confirming that the luminescent material is encapsulated in a silica matrix, finally X-ray diffraction (XRD) shown that TTA:Tb:Dy:Eu@SiO2 composite is amorphous.The synthesis of the thenoyltrifluoroacetone compound doped with terbium, dysprosium and europium encapsulated in a silica matrix (TTA:Tb:Dy:Eu@SiO₂) were performed by the sol-gel method. The precursors to obtain the vitreous phase (SiO₂) were: Tetraethylorthosilicate (TEOS, C₈H₂O₄Si, 98%, Aldrich), and ethyl alcohol (CH₃CH₂OH, 99.5%, Meyer), distilled water and 0.05 ml of hydrochloric acid (HCl, Meyer). The sample with molar ratio 20:80 TTA:Tb:Dy:Eu@SiO₂ has the best emission intensity. Thermogravimetric analysis (TGA) shown that silica encapsulated samples decompose at lower temperatures than pure TTA:Tb:Dy:Eu luminescent material. Fourier Transform Infrared (IR-TF) shown the characteristic Si-O-Si bands that are presented at a wavelength of 1049, 853 and 440 cm^{<span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#FFFFFF;">&#45</span>1} confirming that the luminescent material is encapsulated in a silica matrix, finally X-ray diffraction (XRD) shown that TTA:Tb:Dy:Eu@SiO2 composite is amorphous.

关 键 词：Synthesis Luminescence COMPOSITE SOL-GEL TERBIUM Dysprosium and Europium 

分 类 号：O61[理学—无机化学]