Investigation of low Ce amount doped-TiO2 prepared by using pressurized fluids in photocatalytic N2O decomposition and CO2 reduction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F17%3A10238077" target="_blank" >RIV/61989100:27710/17:10238077 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10372221 RIV/00216275:25310/17:39911951

Result on the web

<a href="https://link.springer.com/article/10.1007/s10971-017-4464-2" target="_blank" >https://link.springer.com/article/10.1007/s10971-017-4464-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10971-017-4464-2" target="_blank" >10.1007/s10971-017-4464-2</a>

Result language

angličtina

Original language name

Investigation of low Ce amount doped-TiO2 prepared by using pressurized fluids in photocatalytic N2O decomposition and CO2 reduction

Original language description

Ce doped TiO2 anatase/brookite composites with 0.6-5.5 wt% of Ce, as well as parent TiO2 anatase/brookite were synthesized to be investigated in two environmentally-beneficial reactions, the photocatalytic decomposition of N2O and the photocatalytic reduction of CO2. Composites were prepared unconventionally, by using sol-gel method combined with the processing by pressurized hot fluids (in the sequence water/methanol/water). The physicochemical and electronic properties of all synthesized composites were characterized by organic elementary analysis, nitrogen physisorption, powder X-ray diffraction, X-ray fluorescence spectroscopy, diffuse reflectance UV-vis spectroscopy and work function measurements. It was revealed that all composites show comparable textural properties, crystallite size, as well as optical properties, except for the 5.5 wt% Ce/TiO2 composite which showed significantly lowered band gap energy due to the significantly higher population of Ce. Concerning the composite structural properties, the addition of different amounts of Ce in the range of 0.6-5.5 wt% affected markedly the phase composition of composites, namely the anatase-to-brokite weight ratio. Concerning the photocatalytic tests the 5.5 wt% Ce/TiO2 composite showed the highest photocatalytic performance. The highest photocatalytic performance of the 5.5 wt% Ce/TiO2 composite can be attributed to the lowest composite work function which is affected by both the amount of Ce, as well as the phase composition.

Czech name

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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

10403 - Physical chemistry

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

2017

Confidentiality

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

Name of the periodical

Journal of Sol-Gel Science and Technology

ISSN

0928-0707

e-ISSN

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Volume of the periodical

84

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

158-168

UT code for WoS article

000411341300020

EID of the result in the Scopus database

2-s2.0-85026812244