Publication detail

Small-sized platinum nanoparticles in soil organic matter: Influence on water holding capacity, evaporation and structural rigidity

KOMENDOVÁ, R. ŽÍDEK, J. BERKA, M. JEMELKOVÁ, M. ŘEZÁČOVÁ, V. CONTE, P. KUČERÍK, J.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

Engineered and anthropogenic nanoparticles represent a new type of pollutants. Up until now, many studies have reported its adverse effect on biota, but the potential influence on the properties and functions of environmental compartments has largely been ignored. In this work, the effect of Pt nanoparticles on the functions and properties of model soil organic matter has been studied. Using differential scanning calorimetry and molecular modeling, the effect of a wide range of 3 nm Pt nanoparticles concentrations on water holding capacity, the strength of water binding, the stability of water molecule bridges and the content of aliphatic crystallites was studied. It was found that strong hydration of the nanoparticles influences the 3D water structural network and acts as kosmotropic agents (structure-forming) in water bridges and as chaotropic agents (i.e. water destructuring) in larger water volumes. Contrarily, the interaction with soil organic matter moieties partially eliminates these effects. As a result, the 3 nm Pt nanoparticles decreased the evaporation enthalpy of water in soil organic matter and supported soil desiccation. They also increased the strength of water molecule bridges and increased the soil structural rigidity even at low concentrations. Additionally, at high concentrations, they decreased the water content in soil organic matter and induced the aliphatic moieties' crystallization. It is concluded that the small-sized Pt nanoparticles, and perhaps other types as well, may affect the local physicochemical processes in soils and may consequently contribute to enhanced evapotranspiration and deterioration of soil functions. (C) 2019 Elsevier B.V. All rights reserved.

Keywords

Platinum; Nanoparticles; Soil; Water; Evaporation; Ice.

Authors

KOMENDOVÁ, R.; ŽÍDEK, J.; BERKA, M.; JEMELKOVÁ, M.; ŘEZÁČOVÁ, V.; CONTE, P.; KUČERÍK, J.

Released

1. 12. 2019

Publisher

Elsevier

ISBN

0048-9697

Periodical

Science of the Total Environment

Number

694

State

Kingdom of the Netherlands

Pages from

Pages to

Pages count

URL

https://www.sciencedirect.com/science/article/pii/S0048969719337696?via%3Dihub

BibTex

@article{BUT158866,
  author="Renata {Komendová} and Jan {Žídek} and Michal {Berka} and Marta {Miklasová} and Veronika {Řezáčová} and Pelegrino {Conte} and Jiří {Kučerík}",
  title="Small-sized platinum nanoparticles in soil organic matter: Influence on water holding capacity, evaporation and structural rigidity",
  journal="Science of the Total Environment",
  year="2019",
  number="694",
  pages="1--9",
  doi="10.1016/j.scitotenv.2019.133822",
  issn="0048-9697",
  url="https://www.sciencedirect.com/science/article/pii/S0048969719337696?via%3Dihub"
}