α-Fe2O3 nanoparticles/vermiculite clay material: Structural, optical and photocatalytic properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10242196" target="_blank" >RIV/61989100:27360/19:10242196 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27640/19:10242196 RIV/61989100:27710/19:10242196

Result on the web

<a href="https://www.mdpi.com/1996-1944/12/11/1880" target="_blank" >https://www.mdpi.com/1996-1944/12/11/1880</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma12111880" target="_blank" >10.3390/ma12111880</a>

Result language

angličtina

Original language name

α-Fe2O3 nanoparticles/vermiculite clay material: Structural, optical and photocatalytic properties

Original language description

Photocatalysis is increasingly becoming a center of interest due to its wide use in environmental remediation. Hematite (α-Fe2O3) is one promising candidate for photocatalytic applications. Clay materials as vermiculite (Ver) can be used as a carrier to accommodate and stabilize photocatalysts. Two different temperatures (500 oC and 700 oC) were used for preparation of α-Fe2O3 nanoparticles/vermiculite clay materials. The experimental methods used for determination of structural, optical and photocatalytic properties were X-ray fluorescence (ED-XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive X-ray spectrometry (EDS), N2 adsorption method (BET), diffuse reflectance UV-Vis spectroscopy (DRS), photoluminescence spectroscopy (PL) and photocatalytic reduction of CO2, respectively. The data from XRD were confronted with molecular modeling of the material arrangement in the interlayer space of vermiculite structure and the possibility of anchoring the α-Fe2O3 nanoparticles to the surface and edge of vermiculite. Correlations between structural, textural, optical and electrical properties and photocatalytic activity have been studied in detail. The α-Fe2O3 and α-Fe2O3/Ver materials with higher specific surface areas, a smaller crystallite size and structural defects (oxygen vacancies) that a play crucial role in photocatalytic activity, were prepared at a lower calcination temperature of 500 oC. (C) 2019 by the authors.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20500 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

12

Issue of the periodical within the volume

11

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

"neuvedeno"

UT code for WoS article

000472638600154

EID of the result in the Scopus database

2-s2.0-85067308831