Ultrasonically induced phthalocyanine degradation: decolouration vs. metal release

被引:12
作者
Banks, CE [1 ]
Wylie, AH [1 ]
Compton, RG [1 ]
机构
[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
基金
英国工程与自然科学研究理事会;
关键词
ultrasound; degradation; Nickel(II) 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine; vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine; sonochemistry;
D O I
10.1016/S1350-4177(03)00153-6
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The ultrasonically induced degradations of nickel(II) 2,9,16,23-tetraphenoxy-29H, 31H-phthalocyanine and vanadyl 2,9,16,23-tetra phenoxy-29H, 31H-phthalocyanine in a biphasic system consisting of chloroform and water are investigated. Decolourisation of the organic phase containing the metallo-phthalocyanines is found to occur rapidly (similar to minutes for 8 ml of ca. 5 muM solution). Analysis of the aqueous solute via ICP-OES, reveals significant amounts of the released nickel ultimately transfers into the aqueous phase but at a rate much slower than that of decolourisation, whereas the vanadium remains within the organic phase suggesting only partial degradation despite efficient decolourisation. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:327 / 331
页数:5
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