当前位置:
X-MOL 学术
›
Cryst. Growth Des.
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
SiO2@TiO2:Eu3+ and Its Derivatives: Design, Synthesis, and Properties
Crystal Growth & Design ( IF 3.8 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1021/acs.cgd.7b01149 Meiqi Chang 1 , Yanhua Song 1 , Jie Chen 1 , Lei Cui 1 , Ye Sheng 1 , Zhan Shi 1 , Haifeng Zou 1
Crystal Growth & Design ( IF 3.8 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1021/acs.cgd.7b01149 Meiqi Chang 1 , Yanhua Song 1 , Jie Chen 1 , Lei Cui 1 , Ye Sheng 1 , Zhan Shi 1 , Haifeng Zou 1
Affiliation
SiO2@TiO2:Eu3+ core–shell structure was synthesized by a surfactant-free solvothermal method, and its luminescence intensities were increased through a coating SiO2 layer. Furthermore, SiO2@TiO2:Eu3+@SiO2 core double-shell structures with different coating thicknesses have been prepared to examine the relationship between luminescence intensity and thickness. In addition, luminescence enhancement mechanisms including the surface repair effect and excitation/emitted light absorption effect were proposed. Moreover, the luminescence properties and photocatalytic behaviors of SiO2@TiO2:Eu3+ core–shell structure and its derivatives SiO2@TiO2:Eu3+ yolk–shell structure and TiO2:Eu3+ hollow structure have been investigated in detail. It is worth mentioning that yolk–shell and hollow structures could be obtained by changing the order of the calcination and etching process of the SiO2@TiO2:Eu3+ core–shell structure. Herein, the hollow structure showed the highest luminescence intensity, and the core–shell structure exhibited excellent photocatalytic efficiency for the degradation of methyl orange.
中文翻译:
SiO 2 @TiO 2:Eu 3+及其衍生物:设计,合成和性能
SiO 2 @TiO 2:Eu 3+核-壳结构是通过无表面活性剂的溶剂热方法合成的,并且通过涂覆SiO 2层可以提高其发光强度。此外,制备了具有不同涂层厚度的SiO 2 @TiO 2:Eu 3+ @SiO 2核双壳结构,以研究发光强度与厚度之间的关系。此外,提出了包括表面修复效应和激发/发射光吸收效应在内的发光增强机理。此外,SiO 2 @TiO 2的发光性质和光催化行为:Eu 3+的核壳结构及其衍生物SiO 2 @TiO 2:Eu 3+的卵黄壳结构和TiO 2:Eu 3+的中空结构已被详细研究。值得一提的是,可以通过改变SiO 2 @TiO 2:Eu 3+核-壳结构的煅烧和蚀刻过程的顺序来获得卵黄-壳结构和中空结构。在此,中空结构显示出最高的发光强度,而核-壳结构对甲基橙的降解显示出优异的光催化效率。
更新日期:2017-11-08
中文翻译:
SiO 2 @TiO 2:Eu 3+及其衍生物:设计,合成和性能
SiO 2 @TiO 2:Eu 3+核-壳结构是通过无表面活性剂的溶剂热方法合成的,并且通过涂覆SiO 2层可以提高其发光强度。此外,制备了具有不同涂层厚度的SiO 2 @TiO 2:Eu 3+ @SiO 2核双壳结构,以研究发光强度与厚度之间的关系。此外,提出了包括表面修复效应和激发/发射光吸收效应在内的发光增强机理。此外,SiO 2 @TiO 2的发光性质和光催化行为:Eu 3+的核壳结构及其衍生物SiO 2 @TiO 2:Eu 3+的卵黄壳结构和TiO 2:Eu 3+的中空结构已被详细研究。值得一提的是,可以通过改变SiO 2 @TiO 2:Eu 3+核-壳结构的煅烧和蚀刻过程的顺序来获得卵黄-壳结构和中空结构。在此,中空结构显示出最高的发光强度,而核-壳结构对甲基橙的降解显示出优异的光催化效率。