Adsorption and Photocatalytic Reduction of Carbon Dioxide on TiO<sub>2</sub>

Oleksandr Shtyka; Viktar Shatsila; Radoslaw Ciesielski; Adam Kedziora; Waldemar Maniukiewicz; Sergey Dubkov; Dmitry Gromov; Andrey Tarasov; Jacek Rogowski; Andrey Stadnichenko; Petr Lazarenko; Roman Ryazanov; Malgorzata I. Szynkowska-Jóźwik; Tomasz Maniecki

doi:10.3390/catal11010047

Catalysts (Dec 2020)

Adsorption and Photocatalytic Reduction of Carbon Dioxide on TiO<sub>2</sub>

Oleksandr Shtyka,
Viktar Shatsila,
Radoslaw Ciesielski,
Adam Kedziora,
Waldemar Maniukiewicz,
Sergey Dubkov,
Dmitry Gromov,
Andrey Tarasov,
Jacek Rogowski,
Andrey Stadnichenko,
Petr Lazarenko,
Roman Ryazanov,
Malgorzata I. Szynkowska-Jóźwik,
Tomasz Maniecki

Affiliations

Oleksandr Shtyka: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Viktar Shatsila: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Radoslaw Ciesielski: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Adam Kedziora: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Waldemar Maniukiewicz: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Sergey Dubkov: Institute of Advanced Materials and Technologies, National Research University of Electronic Technology, Shokin Square 1, Zelenograd, 124498 Moscow, Russia
Dmitry Gromov: Institute of Advanced Materials and Technologies, National Research University of Electronic Technology, Shokin Square 1, Zelenograd, 124498 Moscow, Russia
Andrey Tarasov: Institute of Advanced Materials and Technologies, National Research University of Electronic Technology, Shokin Square 1, Zelenograd, 124498 Moscow, Russia
Jacek Rogowski: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Andrey Stadnichenko: Boreskov Institute of Catalysis SB RAS, 5 Ac. Lavrentiev Ave., 630090 Novosibirsk, Russia
Petr Lazarenko: Institute of Advanced Materials and Technologies, National Research University of Electronic Technology, Shokin Square 1, Zelenograd, 124498 Moscow, Russia
Roman Ryazanov: Scientific-Manufacturing Complex “Technological Centre”, 7 Shokin Square, Zelenograd, 124498 Moscow, Russia
Malgorzata I. Szynkowska-Jóźwik: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland
Tomasz Maniecki: Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego str., 90-924 Lodz, Poland

DOI: https://doi.org/10.3390/catal11010047
Journal volume & issue: Vol. 11, no. 1
p. 47

Abstract

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The photocatalytic activity of TiO2 depends on numerous factors, such as the chemical potential of electrons, charge transport properties, band-gap energy, and concentration of surface-active sites. A lot of research has been dedicated to determining the properties that have the most significant influence on the photocatalytic activity of semiconductors. Here, we demonstrated that the activity of TiO2 in the gas-phase reduction of CO2 is governed mainly by the desorption rate of the reaction intermediates and final products. This indicates that the specific surface area of TiO2 and binding strength of reaction intermediates and products are the main factors affecting the photocatalytic activity of TiO2 in the investigated process. Additionally, it was shown that rutile exhibits higher photocatalytic activity than anatase/rutile mixtures mainly due to its high efficiency in the visible portion of the electromagnetic spectrum.

Published in Catalysts

ISSN: 2073-4344 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology; Science: Chemistry
Website: https://www.mdpi.com/journal/catalysts

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