SciAct
Toggle navigation
  • EN
  • RU

Sections:

  • Articles
  • Books
  • Conference attendances
  • Conference theses
  • Patents

Influence of Tetraalkylammonium Compounds on Photocatalytic and Physical Properties of TiO2 Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X
Output data Year: 2018, Volume: 148, Number: 8, Pages: 2391-2407 Pages count : 17 DOI: 10.1007/s10562-018-2455-8
Tags Photocatalysis; Catalysis, activity; Elementary kinetics; Sol–gel; Preparation and materials
Authors Sankova Natalya 1,2 , Semeykina Viktoriya 1,2 , Selishchev Dmitry 1,2 , Glazneva Tatyana 1,2 , Parkhomchuk Ekaterina 1,2 , Larichev Yurii 1,2 , Uvarov Nikolai 3
Affiliations
1 Novosibirsk State University, Pirogova Str. 2, Novosibirsk, Russia 630090
2 Boreskov Institute of Catalysis SB RAS, Lavrent’ev Ave., Novosibirsk, Russia 630090
3 Institute of Solid State Chemistry and Mechanochemistry, Novosibirsk, Russia

Funding (1)

1 Federal Agency for Scientific Organizations 0303-2016-0010

Abstract: A wide range of experimental data are reported for the first time on the TiO2 prepared by hydrolysis of highly concentrated Ti(OiPr)4 in water solutions of quaternary ammonium compounds (QACs). These TiO2 materials have been shown to be photocatalytically active under visible light irradiation (LED, 450 nm) using acetone as a model substrate oxidized in the gas phase. Five-fold increase in activity in comparison with the commercial photocatalyst KRONOClean 7000 is achieved. Colloidal solutions of hydrolyzed Ti(OiPr)4 have been studied by SAXS method suggesting the way in which QACs solutions may influence the final composition of TiO2. Phase composition, morphology, texture and surface properties of the modified TiO2 have been studied using XRD, BET, SEM and low-temperature FTIR with CO probe. The surface elemental composition has been investigated by XPS method. Additional low-energy levels and high concentration of acid surface sites originated from N/C-doping, are likely to be the main reasons for exceptional photocatalytic performance of these samples.
Cite: Sankova N. , Semeykina V. , Selishchev D. , Glazneva T. , Parkhomchuk E. , Larichev Y. , Uvarov N.
Influence of Tetraalkylammonium Compounds on Photocatalytic and Physical Properties of TiO2
Catalysis Letters. 2018. V.148. N8. P.2391-2407. DOI: 10.1007/s10562-018-2455-8 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Apr 20, 2018
Accepted: Jun 11, 2018
Published online: Jun 21, 2018
Published print: Aug 1, 2018
Identifiers:
publication_identifier.wos_identifier_type WOS:000439734700017
publication_identifier.scopus_identifier_type 2-s2.0-85048805595
publication_identifier.rinz_identifier_type 35741298
publication_identifier.accession_number_identifier_type 2018:1192891
Altmetrics: