Room-temperature synthesis of nanoceria for degradation of organophosphate pesticides and its regeneration and reuse

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F20%3A43895443" target="_blank" >RIV/44555601:13520/20:43895443 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/20:00524279 RIV/61989592:15310/20:73604124
Result on the web
<a href="https://pubs.rsc.org/en/Content/ArticleLanding/2020/RA/D0RA00937G#!divAbstract" target="_blank" >https://pubs.rsc.org/en/Content/ArticleLanding/2020/RA/D0RA00937G#!divAbstract</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d0ra00937g" target="_blank" >10.1039/d0ra00937g</a>

Result language
angličtina
Original language name
Room-temperature synthesis of nanoceria for degradation of organophosphate pesticides and its regeneration and reuse
Original language description
A simple low-temperature water-based and one-pot synthesis was developed for the preparation of nanocrystalline CeO2 that was used for degradation of the toxic organophosphate pesticide parathion methyl. By changing the reaction temperature in the range from 5 oC to 95 oC, several properties (i.e., crystallinity, grain size and surface area) of nanoceria can be easily controlled. The catalytic decomposition of parathion methyl to its degradation product 4-nitrophenol was highly dependent on the CeO2 preparation temperature. It was demonstrated that at low temperature (i.e. 5 oC), CeO2 with very small crystallites (<2 nm) and high surface area can be obtained. For practical use, it was demonstrated that highly crystalline CeO2 can be prepared at room-temperature (30 oC) in at least 100 g batches. It was shown that precipitated nanoceria had high thermal stability and its post-synthesis annealing up to 400 oC did not significantly alter the material properties and hence the catalytic activity. Furthermore, as shown by the reusability tests, the sorbent can be reactivated by simply washing with water which demonstrated its durability.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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