Detail publikace

Influence of Engineered Nanoparticles on Properties of Water in Soil Organic Matter

MIKLASOVÁ, M. KOMENDOVÁ, R. KUČERÍK, J. ŘEZÁČOVÁ, V.

Originální název

Influence of Engineered Nanoparticles on Properties of Water in Soil Organic Matter

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

Nowadays, engineered nanoparticles are largely used, making them a potential pollutant for the environment, including soil. Much research has been conducted on the potential adverse effects of nanoparticles on soil biota. However, the impact of nanoparticles on soil properties is not still fully understood. This work is focused on the influence of two types of 20-nm-sized titanium dioxide (TiO2) nanoparticles (rutile, anatase) on selected water properties in soil organic matter dried at various relative humidity (43, 70, and 95 %). The study builds on previous research on platinum nanoparticles, which revealed that these nanoparticles influenced three-dimensional water structure and, consequently, water properties. Using differential scanning calorimetry (DSC), we discovered that the titanium dioxide nanoparticles reduced stability of water molecular bridges (i.e., water clusters) under 70% relative air humidity. Also, a general decrease of water evaporation enthalpy, which represents water retention of soil, was identified within measured data. Additionally, TiO2 nanoparticles had an impact on total water in the soil. Under low relative humidity, rutile and anatase affected soil differently, probably due to their various hydrophilicity. Under higher relative humidity, this effect was insignificant due to better soil hydration. Lastly, ice melting and water evaporation enthalpies of nanoparticle solutions were studied to confirm nanoparticles’ presumed effect on pure water. The ice melting enthalpy of the solutions increased compared to pure water, while the evaporation enthalpy showed a reverse trend (decrease). These conclusions confirmed that the TiO2 nanoparticles influence pure water and soil water even at very low, environmentally relevant concentrations. That can be a potential risk to the environment. Also, TiO2 nanoparticles contamination can increase evapotranspiration, leading to soil desiccation.

Klíčová slova

titanium dioxide nanoparticles, soil organic matter, differential scanning calorimetry, water, evaporation

Autoři

MIKLASOVÁ, M.; KOMENDOVÁ, R.; KUČERÍK, J.; ŘEZÁČOVÁ, V.

Vydáno

23. 12. 2021

Nakladatel

United Scientific Group

Místo

Plano, Texas

ISSN

2379-1101

Periodikum

NanoWorld Journal

Ročník

7

Číslo

2

Stát

Spojené státy americké

Strany od

23

Strany do

24

Strany počet

27

URL

http://jnanoworld.com/articles/v7n2/nwj-21-suppl1.pdf

BibTex

@misc{BUT176414,
  author="Marta {Miklasová} and Renata {Komendová} and Jiří {Kučerík} and Veronika {Řezáčová}",
  title="Influence of Engineered Nanoparticles on Properties of Water in Soil Organic Matter",
  year="2021",
  journal="NanoWorld Journal",
  volume="7",
  number="2",
  pages="23--24",
  publisher="United Scientific Group",
  address="Plano, Texas",
  doi="10.17756/nwj.2021-suppl1",
  issn="2379-1101",
  url="http://jnanoworld.com/articles/v7n2/nwj-21-suppl1.pdf",
  note="abstract"
}