Electrochemical behaviour and degradation of methyl parathion on platinum electrode

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F18%3A43893767" target="_blank" >RIV/44555601:13520/18:43893767 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jelechem.2018.07.005" target="_blank" >http://dx.doi.org/10.1016/j.jelechem.2018.07.005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2018.07.005" target="_blank" >10.1016/j.jelechem.2018.07.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical behaviour and degradation of methyl parathion on platinum electrode

Popis výsledku v původním jazyce

Methyl parathion adsorption from the solution of 0.5 M H2SO4 (M = mol dmMINUS SIGN 3) on the surface of platinum electrode has be proven. When Pt electrode covered by adsorbed product is cycled between potentials of 0.4 V to MINUS SIGN 0.23 V, the split of adsorbed molecules of methyl parathion occur and molecules of p-nitrophenol are released. We assume that molecules of methanol are also released besides p-nitrophenol and molecules of methylthiophosphoric acid remain adsorbed on the surface of the platinum electrode. If oxidation of adsorbed product is realized by cycling between potentials of MINUS SIGN 0.23 V to 1.32 V, the split of adsorbed molecules of methyl parathion occur and molecules p-nitrophenol and methanol are released. The adsorbed methylthiophosphoric acid is completely mineralized. Degradation of methyl parathion was observed in the electrochemical cell with separated electrode compartments. After 12 h of cycling between potentials of MINUS SIGN 0.23 V to 1.32 V, the concentration of the methyl parathion decreased to 2.5% of starting value (5.3 x 10MINUS SIGN 5 M)

Název v anglickém jazyce

Electrochemical behaviour and degradation of methyl parathion on platinum electrode

Popis výsledku anglicky

Methyl parathion adsorption from the solution of 0.5 M H2SO4 (M = mol dmMINUS SIGN 3) on the surface of platinum electrode has be proven. When Pt electrode covered by adsorbed product is cycled between potentials of 0.4 V to MINUS SIGN 0.23 V, the split of adsorbed molecules of methyl parathion occur and molecules of p-nitrophenol are released. We assume that molecules of methanol are also released besides p-nitrophenol and molecules of methylthiophosphoric acid remain adsorbed on the surface of the platinum electrode. If oxidation of adsorbed product is realized by cycling between potentials of MINUS SIGN 0.23 V to 1.32 V, the split of adsorbed molecules of methyl parathion occur and molecules p-nitrophenol and methanol are released. The adsorbed methylthiophosphoric acid is completely mineralized. Degradation of methyl parathion was observed in the electrochemical cell with separated electrode compartments. After 12 h of cycling between potentials of MINUS SIGN 0.23 V to 1.32 V, the concentration of the methyl parathion decreased to 2.5% of starting value (5.3 x 10MINUS SIGN 5 M)

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

823

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

580-587

Kód UT WoS článku

000443664700070

EID výsledku v databázi Scopus

2-s2.0-85049585148