Mesoporous TiO2/Graphene Composite Films for the Photocatalytic Degradation of Eco-Persistent Pollutants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00482969" target="_blank" >RIV/61388955:_____/17:00482969 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2253132" target="_blank" >http://dx.doi.org/10.1117/12.2253132</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2253132" target="_blank" >10.1117/12.2253132</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mesoporous TiO2/Graphene Composite Films for the Photocatalytic Degradation of Eco-Persistent Pollutants

Popis výsledku v původním jazyce

Graphene/oxide composite structures are attracting increasing attention for many advanced applications. In the present work, mesoporous layers composed of TiO2 nanoparticles and graphene at various concentrations have been coated on conductive glass substrates. They have been tested for the photocatalytic degradation of 4-chlorophenol used as a model compound of an eco-persistent pollutant dilute in water. The formation of intermediate degradation products, namely, hydroquinone and benzoquinone, has been followed. The results show the high photocatalytic activity of the layers and a beneficial effect of graphene for an optimum concentration of 1.2 wt. %. The decrease in the activity observed at higher graphene content is assigned to the light absorption by this component. The key parameters for the enhancement of the photocatalytic performance are discussed.

Název v anglickém jazyce

Mesoporous TiO2/Graphene Composite Films for the Photocatalytic Degradation of Eco-Persistent Pollutants

Popis výsledku anglicky

Graphene/oxide composite structures are attracting increasing attention for many advanced applications. In the present work, mesoporous layers composed of TiO2 nanoparticles and graphene at various concentrations have been coated on conductive glass substrates. They have been tested for the photocatalytic degradation of 4-chlorophenol used as a model compound of an eco-persistent pollutant dilute in water. The formation of intermediate degradation products, namely, hydroquinone and benzoquinone, has been followed. The results show the high photocatalytic activity of the layers and a beneficial effect of graphene for an optimum concentration of 1.2 wt. %. The decrease in the activity observed at higher graphene content is assigned to the light absorption by this component. The key parameters for the enhancement of the photocatalytic performance are discussed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

OXIDE-BASED MATERIALS AND DEVICES VIII

ISBN

978-1-5106-0652-4

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

10

Strana od-do

—

Název nakladatele

SPIE-INT SOC OPTICAL ENGINEERING

Místo vydání

Bellingham

Místo konání akce

San Francisco

Datum konání akce

29. 1. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000405598700042