Photoionization of N-alkylphenothiazines in mesoporous metal silicoaluminophosphate molecular sieves

被引:19
作者
Bae, JY [1 ]
Ranjit, KT [1 ]
Luan, ZH [1 ]
Krishna, RM [1 ]
Kevan, L [1 ]
机构
[1] Univ Houston, Dept Chem, Houston, TX 77204 USA
来源
JOURNAL OF PHYSICAL CHEMISTRY B | 2000年 / 104卷 / 41期
关键词
D O I
10.1021/jp001500h
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The photoionization of N-alkylphenothiazines (PCn where n = 1, 3, 6, 10, and 16) in mesoporous silicoaluminophosphate (UHM-3) and transition metal-substituted silicoaluminophosphate (MUHM-3 where M = Cu, Ni, Cr, and Mn) molecular sieves has been studied by electron spin resonance with ultraviolet irradiation at room temperature. Mesoporous UHM-3 and MUHM-3 molecular sieves were synthesized at room temperature. The effect of the ratio of Si/Al, the nature of the transition metal, and the concentration of the metal on the photoyield was examined. N-Alkylphenothiazine was incorporated into these mesoporous materials and the photoionization of PCn was studied.
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页码:9661 / 9669
页数:9
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