Can ionic liquids exist in the soil environment? Effect of quaternary ammonium cations on glyphosate sorption, mobility and toxicity in the selected herbicidal ionic liquids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10453736" target="_blank" >RIV/00216208:11310/23:10453736 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=RG74OLpaIr" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=RG74OLpaIr</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molliq.2022.120981" target="_blank" >10.1016/j.molliq.2022.120981</a>

Result language

angličtina

Original language name

Can ionic liquids exist in the soil environment? Effect of quaternary ammonium cations on glyphosate sorption, mobility and toxicity in the selected herbicidal ionic liquids

Original language description

Ionic liquids (ILs) are described as low-impact green chemicals in which the cation can influence the properties of the anion through ion pair formation. We decided to see how stable ILs are in the soil environment. Herbicidal ILs consisting of hydrophilic glyphosate [Glyph] paired with hydrophilic choline [Chol], hydrophobic C(12) alkyl modified choline [C(12)Chol] and hydrophobic quaternary ammonium cation [C(16)TMA] were synthesized. The calculated interaction energies between ions (75.9-88.9 kcal/mol) were typical for ILs. The results showed independent sorption of cations and anions and no statistical effect of cations on anion sorption. Hydrophobic [C(16)TMA], [C(12)Chol] cations followed 99 % adsorption, and hydrophilic [Chol] revealed 42-45 % adsorption. The Freundlich constants were [C(16)TMA] K(f) = 4000 &gt; [C(12)Chol] K(f) = 3000 &gt; [Chol] K(f) = to 3 (mg(1-1/n) L(1/n g-1)). The preferential sorption of hydrophobic cations was also visible during leaching experiments and resembles the behavior of cationic surfactants. [Glyph] sorption was higher in organic-rich agricultural soil (approx. 45 %) compared to reference OECD soil (30 %), and the K(f) values were constant, regardless of the presence of cations. The lack of ionic pair integrity was also visualized by the toxicity and phytotoxicity results. In the soil environment, ILs are a mixture of independent cations and anions rather than a novel emerging contaminant.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of Molecular Liquids

ISSN

0167-7322

e-ISSN

1873-3166

Volume of the periodical

370

Issue of the periodical within the volume

15 January

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

120981

UT code for WoS article

000902162700010

EID of the result in the Scopus database

2-s2.0-85144592127