PHOTODEGRADATION OF DI-NORMAL-BUTYL-ORTHO-PHTHALATE IN AQUEOUS-SOLUTIONS

被引：47

作者：

HALMANN, M

机构：

[1] Department of Environmental Science and Energy Research, Weizmann Institute of Science, Rehovot

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1992年 / 66卷 / 02期

关键词：

D O I：

10.1016/1010-6030(92)85215-G

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：

The photodegradation of di-n-butyl-ortho-phthalate in oxygenated aqueous solutions was studied in the presence of hydrogen peroxide, ferric ions, sodium periodate and suspended titanium dioxide by measuring the release of carbon dioxide and the disappearance of the UV absorption band at lambda(max) = 276 nm. A 70 W high-pressure mercury lamp and natural sunlight were used as light sources. Most effective photodegradation was achieved with 0.1 M NaIO4 (t1/2 = 0.5 h) or with 50 mM H2O2 plus 1 mM Fe3+ (t1/2 = 1.0 h). The combined effect of hydrogen peroxide and ferric ions on the photodegradation of di-n-butyl-ortho-phthalate may possibly be considered as a photo-Fenton reaction.

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页码：215 / 223

页数：9

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