期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 115, 期 23, 页码 7693-7698出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp2023154
关键词
-
资金
- Russian Foundation for Basic Research [10-04-00800-a, 10-04-00949-a, 10-02-90301-Viet-a]
- Russian Federation [MK-108.2010.4]
A 5-min exposure of air-saturated bidistilled water to low-intensity laser infrared radiation at the wavelength of the electronic transition of dissolved oxygen to the singlet state ((3)Sigma(-)(g) -> (1)Delta(g)) induces, after a long latent period, auto-oscillations of water luminescence in the blue-green region, which last many hours. Laser irradiation causes the accumulation of hydrogen peroxide, which depends on the concentration of dissolved oxygen. The auto-oscillations do not arise if water is irradiated beyond the oxygen absorption band and if the oxygen is removed from water. The wavelet transform analysis of luminescence records indicates that there are two characteristic periods of pulsations of about 300 and 1150 s. The results obtained suggest that auto-oscillations are triggered by photoinduced singlet oxygen (1)Delta(g), and this phenomenon is closely related to formation of hydrogen peroxide.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据