Photoluminescent (PL) investigation of mesoporous molecular sieve materials

被引：0
|
作者：
He, NY [1 ]
Yang, C
Liao, LS
Dai, Q
Li, P
Xu, C
Lu, ZH
Yuan, CW
机构：
[1] Southeast Univ, Natl Lab Mol & Biomol Elect, Nanjing 210096, Peoples R China
[2] Xiangtan Univ, Dept Chem, Xiangtan 411105, Peoples R China
[3] Nanjing Normal Univ, Dept Chem, Nanjing 210024, Peoples R China
[4] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
来源：
POROUS MATERIALS IN ENVIRONMENTALLY FRIENDLY PROCESSES | 1999年 / 125卷
关键词：
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
MCM-41 mesoporous molecular sieve materials with nanometer-sized gores show a ver); strong photoluminescent (PL) effect when excited by the 441.6 nm line of a Ile-Cd laser or by UV at 250 nm. Al-depleted defect sites are responsible for the strong PL-(laser) effect but not for the PL-(UV) effect. The 467 nm band in PL-(UV) spectra may be caused by oxygen-vacancy defect. Incorporation of aluminum enhances the PL effect. The porous channel structures of molecular sieves are another factor influencing the investigated PL effect.
引用
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页码：293 / 300
页数：8
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