PHOTOCHEMICAL BEHAVIOR OF COPPER(II) NITRILOTRIACETATE IN AQUEOUS-SOLUTION

被引：5
|
作者：
ANDRIANIRINAHARIVELO, SL [1 ]
BOLTE, M [1 ]
机构：
[1] UNIV CLERMONT FERRAND,PHOTOCHIM MOLEC & MACROMOLEC LAB,CNRS,URA 433,F-63177 CLERMONT FERRAND,FRANCE
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1993年 / 73卷 / 03期
关键词：
D O I：
10.1016/1010-6030(93)90007-8
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 phototransformation of copper(II) nitrilotriacetate (CuNTA) was studied at 20-degrees-C using monochromatic excitation at various pH values. Regardless of irradiation wavelength and pH, the observed phenomenon is a redox process giving rise to Cu(I), HCHO, CO2 and iminodiacetic acid. The quantum yield is low and wavelength dependent with only a slight influence of oxygen. The 1:1 ratio between copper(I) and HCHO formation supports a redox process between Cu(II) and the carboxylate group. The quasi-immediate re-oxidation of copper(I) into copper(II) confers a catalytic effect of interest to the system with regard to the fate of nitrilotriacetate acid (NTA) in the environment.
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页码：213 / 216
页数：4
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