Fotoindukovaná degradace 4-chloroanilinu ve vodném roztoku

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F04%3A00002419" target="_blank" >RIV/61989592:15310/04:00002419 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/04:00107642

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Iron(III)-photoinduced degradation of 4-chloroaniline in aqueous solution

Popis výsledku v původním jazyce

The degradation of a prototypical halogenoaromatic pollutant, 4-chloroaniline (4-CA), photoinduced by Fe(111) species, has been studied in acidic aqueous solutions (pH 2-4) of Fe(ClO4)(3) by means of product analysis and nanosecond transient absorption spectroscopy. The degradation process is initiated by the attack of OH radicals on 4-CA, leading to radical cations, 4-CA(.+) as the major transient species. At high photon fluences, the decay of 4-CA(.+) is dominated by second-order reactions; an accelerating effect of Fe(111) could be evidenced at low fluence. A large number of minor reaction intermediates could be detected by product analysis following continuous irradiation at lambda(exc) = 365 nm of aerated solutions, arising from ring substitution,ring opening and oligomerization processes. At higher concentration of 4-CA, the specificity of the degradation process increases; the oligomerization pathway becomes predominant and leads to three major oligomeric products, one of which

Název v anglickém jazyce

Iron(III)-photoinduced degradation of 4-chloroaniline in aqueous solution

Popis výsledku anglicky

The degradation of a prototypical halogenoaromatic pollutant, 4-chloroaniline (4-CA), photoinduced by Fe(111) species, has been studied in acidic aqueous solutions (pH 2-4) of Fe(ClO4)(3) by means of product analysis and nanosecond transient absorption spectroscopy. The degradation process is initiated by the attack of OH radicals on 4-CA, leading to radical cations, 4-CA(.+) as the major transient species. At high photon fluences, the decay of 4-CA(.+) is dominated by second-order reactions; an accelerating effect of Fe(111) could be evidenced at low fluence. A large number of minor reaction intermediates could be detected by product analysis following continuous irradiation at lambda(exc) = 365 nm of aerated solutions, arising from ring substitution,ring opening and oligomerization processes. At higher concentration of 4-CA, the specificity of the degradation process increases; the oligomerization pathway becomes predominant and leads to three major oligomeric products, one of which

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Catalysis B: Environmental

ISSN

0926-3373

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

25-35

Kód UT WoS článku

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EID výsledku v databázi Scopus

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