Imaging Science and Photochemistry ›› 1989, Vol. 7 ›› Issue (2): 8-12.DOI: 10.7517/j.issn.1674-0475.1989.02.8

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OXYGEN PHOTOPRODUCTION BY SrTiO3 SUSPENSION WITH VISIBLE LIGHT

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

  1. 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

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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

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