Oxidative degradation of triazine- and sulfonylurea-based herbicides using Fe(VI): The case study of atrazine and iodosulfuron with kinetics and degradation products

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33155633" target="_blank" >RIV/61989592:15310/15:33155633 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1383586615301593" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1383586615301593</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.seppur.2015.08.024" target="_blank" >10.1016/j.seppur.2015.08.024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Oxidative degradation of triazine- and sulfonylurea-based herbicides using Fe(VI): The case study of atrazine and iodosulfuron with kinetics and degradation products

Popis výsledku v původním jazyce

The occurrence of common herbicides (Atrazine, ATZ and lodosulfuron, IDS), in waters presents potential risk to human and ecological health. The oxidative degradation of ATZ and IDS by ferrate(VI) (FeO42-)-O-VI, Fe(VI) is studied at different pH levels where kinetically observed second-order rate constants (kapp, M-1 s(-1)) decreased with increase in pH from 6.0 to 9.0. The determination of the rate constants for the Fe(VI) species, HFeO4- and FeO42-, with the herbicides using acid-base equilibria of Fe(VI) suggested that the HFeOZ species was largely responsible for the pH dependence behavior of kapp. The title herbicides degraded >90% within 10 min using excess weighted amounts of Fe(VI) over IDS (2:1) ATZ (20:1) and in the pH range of 6.0-9.0. Comparatively, degradations of ATZ and IDS by Mn(VII) were 70% and 40% under same conditions; - showing a superior efficiency of ferrate(VI) in degradation of toxic herbicides. The oxidized products of ATZ and IDS by Fe(VI) at a neutral pH wer

Název v anglickém jazyce

Oxidative degradation of triazine- and sulfonylurea-based herbicides using Fe(VI): The case study of atrazine and iodosulfuron with kinetics and degradation products

Popis výsledku anglicky

The occurrence of common herbicides (Atrazine, ATZ and lodosulfuron, IDS), in waters presents potential risk to human and ecological health. The oxidative degradation of ATZ and IDS by ferrate(VI) (FeO42-)-O-VI, Fe(VI) is studied at different pH levels where kinetically observed second-order rate constants (kapp, M-1 s(-1)) decreased with increase in pH from 6.0 to 9.0. The determination of the rate constants for the Fe(VI) species, HFeO4- and FeO42-, with the herbicides using acid-base equilibria of Fe(VI) suggested that the HFeOZ species was largely responsible for the pH dependence behavior of kapp. The title herbicides degraded >90% within 10 min using excess weighted amounts of Fe(VI) over IDS (2:1) ATZ (20:1) and in the pH range of 6.0-9.0. Comparatively, degradations of ATZ and IDS by Mn(VII) were 70% and 40% under same conditions; - showing a superior efficiency of ferrate(VI) in degradation of toxic herbicides. The oxidized products of ATZ and IDS by Fe(VI) at a neutral pH wer

Druh

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

CEP obor

CC - Organická chemie

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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Separation and Purification Technology

ISSN

1383-5866

e-ISSN

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Svazek periodika

156

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

"1041-1046"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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