Persistent UV phosphors for application in photo catalysis
Persistent UV phosphors for application in photo catalysis
复制标题
DOI：
10.1016/j.jallcom.2010.04.178
复制
发表时间：
2010-07
影响因子：
6.2
通讯作者：
F. Gutiérrez-Martín;F. Fernández-Martínez;P. Díaz;C. Colón;A. Alonso-Medina
中科院分区：
文献类型：
--
作者：
F. Gutiérrez-Martín;F. Fernández-Martínez;P. Díaz;C. Colón;A. Alonso-Medina
在5%H2 - 95%N2的弱还原性气氛中，采用固相反应在1200°C下反应2 h制备了Ce 3+掺杂的铝硅酸锶（Sr 1 −vMv）1+ yAl 2 − xBxSiyO 4 + 3 y（M：Ca，Mg，Ba）。X射线衍射测量显示，产物具有良好的结晶性，并且所得磷光体显示出以400 nm为中心的宽发射，具有数分钟的长余辉（k=0.02-0.10s-1）。这些发光性能被认为足够好的光催化，这将是进一步发展的目标的新应用。
Ce3+-doped strontium alumino-silicates (Sr1−vMv)1+yAl2−xBxSiyO4+3y(M:Ca,Mg,Ba) were prepared using solid-state reactions at 1200°C for 2h in a weakly reductive atmosphere of 5% H2-95% N2. The X-ray diffraction measurements revealed that the products have a good crystallization, and the resultant phosphors show broad emissions centered at 400nm, with a long-persistence of several minutes (k=0.02–0.10s−1). These luminescent properties are considered good enough for novel applications in photo catalysis, which will be the objective of further developments.