Study of Degradation Kinetics of Parathion Methyl On Mixed NanocrystallineTitania-Zirconium and Titania-Cerium Oxides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F16%3A43888332" target="_blank" >RIV/44555601:13520/16:43888332 - isvavai.cz</a>

Alternative codes found

RIV/44555601:13440/16:43888332

Result on the web

<a href="http://dx.doi.org/10.1088/1755-1315/44/5/052039" target="_blank" >http://dx.doi.org/10.1088/1755-1315/44/5/052039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/44/5/052039" target="_blank" >10.1088/1755-1315/44/5/052039</a>

Result language

angličtina

Original language name

Study of Degradation Kinetics of Parathion Methyl On Mixed NanocrystallineTitania-Zirconium and Titania-Cerium Oxides

Original language description

The unique surface properties of some nanocrystalline metal oxides and their application for removal of various toxic compounds were reported in early 1990s. Recently, a reliable method for the preparation of reactive cerium dioxide sorbent and its application for degradation of the organophosphate pesticides, such as 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) was published. This paper reports on the kinetics study of degradation of parathion methyl as a representative organophosphate on nanocrystalline metal oxides TiO2, ZrO2, CeO2 and their mixtures in different molar ratios of particular elements. The tested sorbents except of CeO2 were prepared by different methods (e.g. sol-gel, precipitation) in cooperation with Institute of Inorganic Chemistry (Rez, Czech Republic). The degradation kinetics of parathion methyl on tested sorbents was followed by HPLC equipped with diode array detector. The basic kinetics parameters (half-lives of parathion methyl degradation, rate constants of degradation product formation) were calculated for each sorbent from Weber-Morris equation of 1st order diffusion kinetic model. The results proved the ability of prepared sorbents to degrade parathion methyl under formation of 4-nitrophenol as the main degradation product. The most efficient sorbents were TiCe (2:8), TiCe (1:1), TiCe (0:1) (50-70 %) followed by TiZr (1:1), TiCe (8:2), TiZr (8:2), TiZr (2:8) (20-30%) and TiO2, ZrO2 (less than 5 %).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

<a href="/en/project/LM2015073" target="_blank" >LM2015073: Nanomaterials and Nanotechnologies for Environment Protection and Sustainable Future</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

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

Name of the periodical

IOP Conference Series: Earth and Environmental Science

ISSN

1755-1307

e-ISSN

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Volume of the periodical

44

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

1-4

UT code for WoS article

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EID of the result in the Scopus database

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