Cerium dioxide as a new reactive sorbent for fast degradation of parathion methyl and some other organophosphates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F14%3A00429174" target="_blank" >RIV/61388980:_____/14:00429174 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/44555601:13440/14:43886499 RIV/44555601:13520/14:43886499

Výsledek na webu

<a href="http://dx.doi.org/10.1016/S1002-0721(14)60079-X" target="_blank" >http://dx.doi.org/10.1016/S1002-0721(14)60079-X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/S1002-0721(14)60079-X" target="_blank" >10.1016/S1002-0721(14)60079-X</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cerium dioxide as a new reactive sorbent for fast degradation of parathion methyl and some other organophosphates

Popis výsledku v původním jazyce

Cerium dioxide was used for the first time as reactive sorbent for the degradation of the organophosphate pesticides parathion methyl, chlorpyrifos, dichlofenthion, fenchlorphos, and prothiofos, as well as of some chemical warfare agents-nerve gases soman and O-ethyl S-[2-(diisopropylamino) ethyl] methylphosphonothioate (VX). CeO2 specimens were prepared by calcination of basic cerous carbonate obtained by precipitation from an aqueous solution. The CeO2 samples containing certain amounts (1 wt.%-5 wt.%) of the neighboring lanthanides (La, Pr, Nd) were prepared in a similar way from pure lanthanide salts. It was shown that ceria accelerated markedly the decomposition of parathion methyl causing the cleavage of the P-O-aryl bond in the pesticide molecule. A similar reaction mechanism was proposed for the degradation of other organophosphate pesticides and nerve agents. The degradation times (reaction half-times) were in an order of minutes in the presence of CeO2, compared to hours or d

Název v anglickém jazyce

Cerium dioxide as a new reactive sorbent for fast degradation of parathion methyl and some other organophosphates

Popis výsledku anglicky

Cerium dioxide was used for the first time as reactive sorbent for the degradation of the organophosphate pesticides parathion methyl, chlorpyrifos, dichlofenthion, fenchlorphos, and prothiofos, as well as of some chemical warfare agents-nerve gases soman and O-ethyl S-[2-(diisopropylamino) ethyl] methylphosphonothioate (VX). CeO2 specimens were prepared by calcination of basic cerous carbonate obtained by precipitation from an aqueous solution. The CeO2 samples containing certain amounts (1 wt.%-5 wt.%) of the neighboring lanthanides (La, Pr, Nd) were prepared in a similar way from pure lanthanide salts. It was shown that ceria accelerated markedly the decomposition of parathion methyl causing the cleavage of the P-O-aryl bond in the pesticide molecule. A similar reaction mechanism was proposed for the degradation of other organophosphate pesticides and nerve agents. The degradation times (reaction half-times) were in an order of minutes in the presence of CeO2, compared to hours or d

Druh

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

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Rare Earths

ISSN

1002-0721

e-ISSN

—

Svazek periodika

32

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

11

Strana od-do

360-370

Kód UT WoS článku

000335925000010

EID výsledku v databázi Scopus

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