Correlation of Surface Area with Photocatalytic Activity of TiO2 Full article
Journal |
Journal of Advanced Oxidation Technologies
ISSN: 1203-8407 |
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Output data | Year: 2018, Volume: 21, Number: 1, Pages: 127-137 Pages count : 11 DOI: 10.26802/jaots.2017.0063 | ||||||||||||
Tags | Acetone Oxidation, GasPhase Heterogeneous Photocatalysis, Particles Size Effect, Surface Acidity | ||||||||||||
Authors |
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Affiliations |
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Funding (2)
1 | Russian Foundation for Basic Research | 15-08-01936 |
2 | Russian Foundation for Basic Research | 13-08-01286 |
Abstract:
Experimental investigation has been undertaken with the goal to determine the effect of specific surface area, extent of hydroxylation, surface acidity properties on TiO2 photocatalytic activity in deep oxidation of gas phase acetone. pH of aging, calcination temperature and calcination time were varied in TiO2 preparation using TiCl4 hydrolysis. The photocatalytic activity attains its maximal values at aging pH close to 4 and calcination temperature different for different calcination time and hydrolysis conditions. Specific surface area continuously decreases with an increase in calcination temperature. Maximal photocatalytic activity corresponds to very different surface area for different series of TiO2 samples. These data mean that TiO2 particles size and surface area does not have a direct influence on photocatalytic activity but it is rather surface properties such as surface acidity and hydroxyl groups content, which are different for samples prepared at different pH and calcination temperature, that determine the photocatalytic activity.
Cite:
Vorontsov A.V.
, Kabachkov E.N.
, Balikhin I.L.
, Kurkin E.N.
, Troitskii V.N.
, Smirniotis P.G.
Correlation of Surface Area with Photocatalytic Activity of TiO2
Journal of Advanced Oxidation Technologies. 2018. V.21. N1. P.127-137. DOI: 10.26802/jaots.2017.0063 WOS Scopus РИНЦ
Correlation of Surface Area with Photocatalytic Activity of TiO2
Journal of Advanced Oxidation Technologies. 2018. V.21. N1. P.127-137. DOI: 10.26802/jaots.2017.0063 WOS Scopus РИНЦ
Dates:
Submitted: | Jan 22, 2017 |
Accepted: | Aug 24, 2017 |
Published online: | Nov 23, 2017 |
Published print: | Jan 1, 2018 |
Identifiers:
Web of science | WOS:000423564300012 |
Scopus | 2-s2.0-85035144270 |
Elibrary | 31081573 |
OpenAlex | W2795239241 |