ELECTRON-SPIN-RESONANCE STUDY OF RADICALS PRODUCED ON IRRADIATED CDS POWDER

被引：20

作者：

NAKAOKA, Y ^{[1
]}

NOSAKA, Y ^{[1
]}

机构：

[1] NAGAOKA UNIV TECHNOL,DEPT CHEM,NAGAOKA,NIIGATA 94021,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 24期

关键词：

D O I：

10.1021/j100024a035

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：

ESR measurements were carried out for wurtzite (W) and zinc-blende (ZB) CdS powders at 77 K under light irradiation. ESR signals at g = 2.004-2.035 were detected for each crystal structure. The signals decreased on contact with 2-propanol and were assigned to trapped holes. The W CdS is active for oxidation reactions rather than the ZB CdS since the formation of 2-hydroxy-2-propyl radical was clearly observed. Reduction of methylviologen was observed for some CdS powders. The difference in the photoinduced ESR spectra was discussed with the morphology of the particles obtained from transmission electron microscopy.

引用

页码：9893 / 9897

页数：5

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