Oxygen Production from Halate Aqueous Solutions by UV Photoinduced Oxidation

Zhang, Li; Liu, You Nian; Zhou, Min Jie; Yan, Jian Hui

doi:10.4028/www.scientific.net/AMR.485.377

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Home Advanced Materials Research Advanced Research on Material Engineering and its...Oxygen Production from Halate Aqueous Solutions by...

Oxygen Production from Halate Aqueous Solutions by UV Photoinduced Oxidation

Abstract:

Oxygen generation from halate solution under ultraviolet irradiation was studied. The results show that with regard to KBrO3, KIO3, and KClO3 solution containing 9mmol of halate ions, and the average rates of oxygen formation were 14.1, 10.2 and 2.5 mmol, respectively in the first 3 hours. The rates and amount of oxygen formation increased with increasing halate concentration. The oxygen evolved from the oxidation of water by the excited radical (XO3 ) formed from UV absorption of XO3− ions, resulting in the reduction of halate ions to halide ions

Info:

Periodical:

Advanced Materials Research (Volume 485)

Main Theme:

Advanced Research on Material Engineering and its Application

Edited by:

Helen Zhang and David Jin

Pages:

377-380

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.485.377

Citation:

L. Zhang et al., "Oxygen Production from Halate Aqueous Solutions by UV Photoinduced Oxidation", Advanced Materials Research, Vol. 485, pp. 377-380, 2012

Online since:

February 2012

Authors:

Li Zhang, You Nian Liu, Min Jie Zhou, Jian Hui Yan

Keywords:

Oxygen, Photoreduction, UV Light Irradiation

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References

[1] Y. Kurokawa, A. Maerkawa and M. Takahashi: J . Environ. Health Persp Vol. 309-339(1990), p.87.

[2] Y. Kurata, B. A. Diwan and J. M. Ward: J . Chem. Toxicol Vol. 965-972 (1992), p.30.

[3] M. Siddiqui, G. Amy, and W. Zhai: American Water Works Association Annual Conference, New York(1994), in Press.

[4] W. A. M. Hijnen, K. D. Vander: J. Res. Vol. 49-53 (1999) p.33.

[5] G. Gordon, R. D. Gauw, G. L. Emmert: J. J Am Water Works Assoc. Vol. 91-98 (2002) p.94.

[6] M. J. Kirisits, V L. ernon and Joop, C: J. Wat Res Vol. 4250-4260 ( 2000) p.34.

[7] M. Siddiqui, W. Zhai and G. Amy: J. Wat Res Vol. 1651-1660 (1996) p.30.

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Authors: Ludmila N. Shiyan, Alexey G. Zherlitsyn, Seda O. Magomadova, Cyril S. Lazar

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