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Photochemical reaction of 2-chlorobiphenyl with N(III) (H2ONO+/HONO/NO2−) in acidic environment studied by using co-linear laser flash photolysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
26452 43953 2013 6 PDF Available
Title
Photochemical reaction of 2-chlorobiphenyl with N(III) (H2ONO+/HONO/NO2−) in acidic environment studied by using co-linear laser flash photolysis
Abstract

•The photochemical conversion of 2-PCB in the presence of N(III) is initiated by OH oxidation.•The second-order rate constant for reaction of 2-PCB with OH is (8.9 ± 1.2) × 109 M−1 s−1.•Only HONO and NO2− are the forms of N(III) important to pollutant photochemical transformation.

Photo-induced transformation in the presence of N(III) is an important pathway for pollutants conversion in atmospheric condensed phase. In this study, the photochemical reaction between 2-chlorobiphenyl and N(III) was investigated in acidic environment by using co-linear laser flash photolysis technique. The photo-induced conversion of 2-PCB is initiated from its rapid oxidation by OH, a primary product from the photolysis of N(III). The second-order rate constant for the reaction between 2-PCB and OH was determined to be (8.9 ± 1.2) × 109 M−1 s−1. HONO and NO2− were found to be more important than H2ONO+ with respect to the photochemical transformation of pollutants in atmospheric hydrometeors. The complicated photochemical conversion pathways and their significance in the atmosphere were discussed as well in this paper.

Keywords
2-Chlorobiphenyl; N(III), 355 nm; Photochemistry
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Photochemical reaction of 2-chlorobiphenyl with N(III) (H2ONO+/HONO/NO2−) in acidic environment studied by using co-linear laser flash photolysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 268, 15 September 2013, Pages 44–49
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us