PHOTOCATALYTIC OXIDATION OF CYANIDE TO NITRATE AT TIO2 PARTICLES

被引：44

作者：

POLLEMA, CH

HENDRIX, JL

MILOSAVLJEVIC, EB

SOLUJIC, L

NELSON, JH

机构：

[1] UNIV BELGRADE,FAC CHEM,YU-11001 BELGRADE,YUGOSLAVIA

[2] UNIV NEVADA,DEPT CHEM,RENO,NV 89557

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)85217-I

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 photocatalytic oxidation of cyanide at titanium(IV) oxide powder induced by UV irradiation was investigated. It is verified that cyanide is first oxidized to cyanate. However, contrary to earlier studies, it is established that cyanate is subsequently further photocatalytically oxidized via nitrite all the way to nitrate. Experimental conditions were varied and the effects of various sparging gases and pH, as well as the concentrations of both cyanide and photocatalyst, were investigated. As nitrate is a significantly less hazardous contaminant than cyanide, complete photocatalytic oxidation of cyanide to nitrate may be a viable method for decontamination of cyanide wastes.

引用

页码：235 / 244

页数：10

共 14 条

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