Effect of ZnO nanosizing on its solubility in aqueous media

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916051" target="_blank" >RIV/60461373:22310/18:43916051 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/18:43916051

Výsledek na webu

<a href="http://dx.doi.org/10.1049/mnl.2018.5158" target="_blank" >http://dx.doi.org/10.1049/mnl.2018.5158</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/mnl.2018.5158" target="_blank" >10.1049/mnl.2018.5158</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of ZnO nanosizing on its solubility in aqueous media

Popis výsledku v původním jazyce

Zinc pollution represents a great environmental risk, particularly with regards to the aquatic environment. In this theoretical contribution, the enhanced solubility of ZnO nanoparticles in pure water is predicted based on a simple thermodynamic model. The study used Zn2+, Zn(OH)+, Zn(OH)2, Zn(OH)3 − and Zn(OH)4 2− as dominant species in aqueous solution and a Gibbs energy minimisation method to calculate equilibrium Zn content in this solution. ZnO was investigated in the form of nanoparticles of various shapes, whose very high surface-to-volume ratio implicates their lower thermodynamic stability compared with bulk material. The interfacial energy of the solid ZnO – dilute aqueous solution interface was assessed by applying the average ZnO surface energy and contact angle of a sessile drop of water on ZnO(000¯1)-O surface. At 298 K, the ratio of 2 nm spherical ZnO particles to the bulk material solubility was about 23.7. The calculated results were compared with experimental data and yielded a good agreement. These results are not only of great importance for nanomaterials research but they also have implications for environmental protection. © The Institution of Engineering and Technology 2018.

Název v anglickém jazyce

Effect of ZnO nanosizing on its solubility in aqueous media

Popis výsledku anglicky

Zinc pollution represents a great environmental risk, particularly with regards to the aquatic environment. In this theoretical contribution, the enhanced solubility of ZnO nanoparticles in pure water is predicted based on a simple thermodynamic model. The study used Zn2+, Zn(OH)+, Zn(OH)2, Zn(OH)3 − and Zn(OH)4 2− as dominant species in aqueous solution and a Gibbs energy minimisation method to calculate equilibrium Zn content in this solution. ZnO was investigated in the form of nanoparticles of various shapes, whose very high surface-to-volume ratio implicates their lower thermodynamic stability compared with bulk material. The interfacial energy of the solid ZnO – dilute aqueous solution interface was assessed by applying the average ZnO surface energy and contact angle of a sessile drop of water on ZnO(000¯1)-O surface. At 298 K, the ratio of 2 nm spherical ZnO particles to the bulk material solubility was about 23.7. The calculated results were compared with experimental data and yielded a good agreement. These results are not only of great importance for nanomaterials research but they also have implications for environmental protection. © The Institution of Engineering and Technology 2018.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA17-13161S" target="_blank" >GA17-13161S: Vliv nestechiometrie a nanostrukturování na materiálové vlastnosti oxidů kovů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Micro &amp; Nano Letters

ISSN

1750-0443

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

1585-1589

Kód UT WoS článku

000454763900017

EID výsledku v databázi Scopus

2-s2.0-85057783820