SrTiO3粉末在可见光照射下光氧化水产氧的研究

doi:10.7517/j.issn.1674-0475.1989.02.8

影像科学与光化学 ›› 1989, Vol. 7 ›› Issue (2): 8-12.DOI: 10.7517/j.issn.1674-0475.1989.02.8

SrTiO₃粉末在可见光照射下光氧化水产氧的研究

毕只初¹, 俞稼镛¹, 田心棣²

1. 中国科学院感光化学研究所, 北京;
2. 美国密执安州立大学, 生理系

收稿日期:1987-10-15 修回日期:1988-08-30 出版日期:1989-05-20 发布日期:1989-05-20

OXYGEN PHOTOPRODUCTION BY SrTiO₃ SUSPENSION WITH VISIBLE LIGHT

Bi ZHI-CHU¹, YU JIA-YONG¹, H. TI. TIEN²

1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100012, P. R. China;
2. Department of Physiology Michigan Slate University, U. S. A.

Received:1987-10-15 Revised:1988-08-30 Online:1989-05-20 Published:1989-05-20

摘要/Abstract

摘要： SrTiO₃粉末在FeCl₃水溶液里的悬浮体([Fe³⁺]=1.0×10^-3mol/L,pH2.8,SrTiO₃含量1.25g/L)能在λ>400 nm的可见光照射下光氧化水产氧。在相同条件下SrTiO₃和WO₃粉末的混合悬浮体(SrTiO₃与WO₃含量均为1.25g/L)产氧的速率为两者单独存在时的速率之和。光声光谱实验显示SrTiO₃粉末在从溶液里吸附Fe³⁺后对可见光的吸收大大增强,使它能在可见光下光氧化水产氧。

关键词: 光氧化水产氧, 半导体粉末, 加和性, 光声光谱图

Abstract: Oxygen was produced with visible light from SrTiO₂ suspension which was made up of SrTiOs powder and ferric aqueous solution. Under the special condition ([Fe²⁺] =1.0×10^-3 mol/L, pH 2.8, SrTiO₃ and WO₃ powders, 1.25g/L each), the O₂ photoproduction from SrTiO₃ and WO₃ mixed suspension equaled the sum of the O₂ production from SrTiO₃ and WO₂ each. The photoacounstic spectra of absorption of SrTiO₃ powders showed that the Fe²⁺ ions adsorbed on SrTiO₃ powders greatly enhanced their viible light absorption.

Key words: Photooxidation of water to oxygen, SrTiO₃ powders, Additivity, Photoa-counstic spectra

毕只初, 俞稼镛, 田心棣. SrTiO₃粉末在可见光照射下光氧化水产氧的研究[J]. 影像科学与光化学, 1989, 7(2): 8-12.

Bi ZHI-CHU, YU JIA-YONG, H. TI. TIEN. OXYGEN PHOTOPRODUCTION BY SrTiO₃ SUSPENSION WITH VISIBLE LIGHT[J]. Imaging Science and Photochemistry, 1989, 7(2): 8-12.

SrTiO₃粉末在可见光照射下光氧化水产氧的研究

OXYGEN PHOTOPRODUCTION BY SrTiO₃ SUSPENSION WITH VISIBLE LIGHT

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