Abstract:
:The photochemical reaction between biphenyl (Bp) and N(III) under irradiation at 365 nm UV light was investigated. The results showed that Bp conversion efficiency was strongly influenced by N (III) concentration, Bp initial concentration and pH. Species-specific rate constants determined by reaction of Bp with H2ONO+ (k1), HONO (k2) and NO2- (k3) were k1 = (0.058 ± 0.005 L mol-1 s-1), k2 = (0.12 ± 0.06 L mol-1 s-1) and k3 = (0.0019 ± 0.0003 L mol-1 s-1), respectively. Laser flash photolysis studies confirmed that OH radical deriving from the photolysis of N(III) attacked aromatic ring to form Bp-OH adduct with a rate constant of 9.4 × 109 L mol-1 s-1. The products analysis suggested that Bp-OH adduct could be nitrated by N (III) and NO2 to generate nitro-compounds.
journal_name
Chemospherejournal_title
Chemosphereauthors
Ma J,Zhu C,Lu J,Wang T,Hu S,Chen Tdoi
10.1016/j.chemosphere.2016.10.010subject
Has Abstractpub_date
2017-01-01 00:00:00pages
462-468eissn
0045-6535issn
1879-1298pii
S0045-6535(16)31382-0journal_volume
167pub_type
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