Photocatalytic properties of aqueous systems containing TiO(2) nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43892493" target="_blank" >RIV/60461373:22310/11:43892493 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/11:00359747

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2010.11.001" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2010.11.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2010.11.001" target="_blank" >10.1016/j.cattod.2010.11.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic properties of aqueous systems containing TiO(2) nanoparticles

Popis výsledku v původním jazyce

This work describes the aging of aqueous colloidal TiO(2) nanoparticles at different temperatures and pH values. Emphasis was particularly given to the behaviour in the alkaline region, since this has not yet been properly reported. Aging of colloidal TiO(2) suspensions has previously been investigated using spectroscopic methods (band gap energy determination) and a dynamic light scattering method (particle size determination). The photocatalytic activity, representing the most important property of TiO(2) nanoparticles, was determined through the quantum yield of 4-chlorophenol degradation. It was found that the size of acidic colloidal TiO(2) particles depends on the storing temperature; lower temperature leads to a small increase in particle size.The process of aging of TiO(2) nanoparticles consists in slow re-crystallization that leads to slightly larger particles, and it seems that this process is faster at higher temperatures. In alkaline environments it was found that the chan

Název v anglickém jazyce

Photocatalytic properties of aqueous systems containing TiO(2) nanoparticles

Popis výsledku anglicky

This work describes the aging of aqueous colloidal TiO(2) nanoparticles at different temperatures and pH values. Emphasis was particularly given to the behaviour in the alkaline region, since this has not yet been properly reported. Aging of colloidal TiO(2) suspensions has previously been investigated using spectroscopic methods (band gap energy determination) and a dynamic light scattering method (particle size determination). The photocatalytic activity, representing the most important property of TiO(2) nanoparticles, was determined through the quantum yield of 4-chlorophenol degradation. It was found that the size of acidic colloidal TiO(2) particles depends on the storing temperature; lower temperature leads to a small increase in particle size.The process of aging of TiO(2) nanoparticles consists in slow re-crystallization that leads to slightly larger particles, and it seems that this process is faster at higher temperatures. In alkaline environments it was found that the chan

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/1M0577" target="_blank" >1M0577: Výzkumné centrum pro nanopovrchové inženýrství</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

—

Svazek periodika

161

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

140-146

Kód UT WoS článku

000287730900025

EID výsledku v databázi Scopus

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