Photochemical degradation of selected nitropolycyclic aromatic hydrocarbons in solution and adsorbed to solid particles

To examine the relationship between the nitro group orientation and photochemical degradation, a series of NPAHs, including 6-nitrochrysene, 9-nitroanthracene and 6-nitrobenzo( a)pyrene were irradiated both dissolved in CH 3CN and adsorbed onto a surface (alumina, silica, carbon and cellulose). In s...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2004-02, Vol.54 (8), p.1207-1215
Main Authors: Warner, Stephanie D., Farant, Jean-Pierre, Butler, Ian S.
Format: Article
Language:English
Subjects:
Adsorption
alumina
Aluminum Oxide - chemistry
Applied sciences
Cellulose - chemistry
Environmental Monitoring - methods
Exact sciences and technology
Global environmental pollution
Kinetics
Light
Nitro Compounds - chemistry
Nitro group orientation
Nitropolycyclic aromatic hydrocarbons
Photochemistry
Photodegradation
Pollution
Polycyclic Aromatic Hydrocarbons - chemistry
Silicon Dioxide - chemistry
Solutions - chemistry
Spectrum Analysis, Raman
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Summary:To examine the relationship between the nitro group orientation and photochemical degradation, a series of NPAHs, including 6-nitrochrysene, 9-nitroanthracene and 6-nitrobenzo( a)pyrene were irradiated both dissolved in CH 3CN and adsorbed onto a surface (alumina, silica, carbon and cellulose). In solution, not all NPAHs displayed a relationship between their relative and nitro group orientation. In the adsorbed state, the nature of the particle appeared to have more of an influence than did the structure of the NPAH. If the compound degraded, the main product was generally a quinone.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2003.09.020