Effect of surface doping of TiO2 powders with Fe ions on the structural, optical and photocatalytic properties of anatase and rutile

V. V. Shymanovska; T. A. Khalyavka; E. V. Manuilov; T. A. Gavrilko; A. Aho; V. V. Naumov; N. D. Shcherban

doi:10.1016/j.jpcs.2021.110308

Effect of surface doping of TiO₂ powders with Fe ions on the structural, optical and photocatalytic properties of anatase and rutile

V. V. Shymanovska, T. A. Khalyavka, E. V. Manuilov^*, T. A. Gavrilko, A. Aho, V. V. Naumov, N. D. Shcherban

^*Tämän työn vastaava kirjoittaja

Industrial Chemistry and Reaction Engineering

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

8 Sitaatiot (Scopus)

Abstrakti

The effect of surface Fe-doping on the structural, photocatalytic, optical properties of polydisperse anatase and rutile TiO₂ has been comprehensively studied. The TiO₂ surface has been modified by Fe³⁺ ions through the adsorption from the diluted FeCl₃ aqueous solutions. The prepared powders were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area analysis, temperature programmed desorption techniques (TPD), Raman and UV–vis spectroscopy. With the adsorption isotherms of Fe³⁺ ions from FeCl₃ aqueous solutions, it was found that adsorption of Fe³⁺ ions on the anatase surface is twice more efficient compared to that one on the rutile. The XRD and Raman spectroscopy measurements confirmed the monophase structure of the Fe-doped TiO₂ with a subtle change in the lattice parameters and O/Ti ratio compared to the undoped counterparts. The red shift of the UV absorption edge has been registered for the Fe-doped anatase resulting in a significant decrease of its bandgap from 3.2 to 2.7 eV. The photocatalytic destruction of organic dye Safranin T over the prepared Fe-doped TiO₂ under UV irradiation has been investigated. The influence of various energetically nonequivalent active sites on the surfaces of anatase and rutile on their photoactivity is considered.

Alkuperäiskieli	Englanti
Artikkeli	110308
Julkaisu	Journal of Physics and Chemistry of Solids
Vuosikerta	160
Varhainen verkossa julkaisun päivämäärä	4 elok. 2021
DOI - pysyväislinkit	https://doi.org/10.1016/j.jpcs.2021.110308
Tila	Julkaistu - tammik. 2022
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

Pääsy asiakirjaan

10.1016/j.jpcs.2021.110308Lisenssi: All rights reserved

https://urn.fi/URN:NBN:fi-fe202201148769

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Kielletty (embargo) dokumentti

PCS_S_21_01034_1_
Hyväksytty kirjoittajan käsikirjoitus, 1,39 MB
Lisenssi: CC BY-NC-ND
Kielto päättyy: 18/08/23

Viittausmuodot

@article{626ae559e4e8482db92f60796a9bb8f3,

title = "Effect of surface doping of TiO2 powders with Fe ions on the structural, optical and photocatalytic properties of anatase and rutile",

abstract = "The effect of surface Fe-doping on the structural, photocatalytic, optical properties of polydisperse anatase and rutile TiO2 has been comprehensively studied. The TiO2 surface has been modified by Fe3+ ions through the adsorption from the diluted FeCl3 aqueous solutions. The prepared powders were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area analysis, temperature programmed desorption techniques (TPD), Raman and UV–vis spectroscopy. With the adsorption isotherms of Fe3+ ions from FeCl3 aqueous solutions, it was found that adsorption of Fe3+ ions on the anatase surface is twice more efficient compared to that one on the rutile. The XRD and Raman spectroscopy measurements confirmed the monophase structure of the Fe-doped TiO2 with a subtle change in the lattice parameters and O/Ti ratio compared to the undoped counterparts. The red shift of the UV absorption edge has been registered for the Fe-doped anatase resulting in a significant decrease of its bandgap from 3.2 to 2.7 eV. The photocatalytic destruction of organic dye Safranin T over the prepared Fe-doped TiO2 under UV irradiation has been investigated. The influence of various energetically nonequivalent active sites on the surfaces of anatase and rutile on their photoactivity is considered.",

keywords = "Acid sites, Anatase, Fe doped, Photocatalysis, Rutile",

author = "Shymanovska, {V. V.} and Khalyavka, {T. A.} and Manuilov, {E. V.} and Gavrilko, {T. A.} and A. Aho and Naumov, {V. V.} and Shcherban, {N. D.}",

note = "Funding Information: The work was supported by the National Academy of Sciences of Ukraine under the Target Research Program “Fundamental physical processes and phenomena in condensed matter physics, optics, physical electronics, nanophysics and prospects for their practical application for new devices and materials” (Project no. VC/188) and “Development of alternative methods for the preparation of nanosized oxide catalysts and composites based on Mo, Ti, Zr, Nb and Sn”. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2022",

month = jan,

doi = "10.1016/j.jpcs.2021.110308",

language = "English",

volume = "160",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier",

}

TY - JOUR

T1 - Effect of surface doping of TiO2 powders with Fe ions on the structural, optical and photocatalytic properties of anatase and rutile

AU - Shymanovska, V. V.

AU - Khalyavka, T. A.

AU - Manuilov, E. V.

AU - Gavrilko, T. A.

AU - Aho, A.

AU - Naumov, V. V.

AU - Shcherban, N. D.

N1 - Funding Information: The work was supported by the National Academy of Sciences of Ukraine under the Target Research Program “Fundamental physical processes and phenomena in condensed matter physics, optics, physical electronics, nanophysics and prospects for their practical application for new devices and materials” (Project no. VC/188) and “Development of alternative methods for the preparation of nanosized oxide catalysts and composites based on Mo, Ti, Zr, Nb and Sn”. Publisher Copyright: © 2021 Elsevier Ltd

PY - 2022/1

Y1 - 2022/1

N2 - The effect of surface Fe-doping on the structural, photocatalytic, optical properties of polydisperse anatase and rutile TiO2 has been comprehensively studied. The TiO2 surface has been modified by Fe3+ ions through the adsorption from the diluted FeCl3 aqueous solutions. The prepared powders were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area analysis, temperature programmed desorption techniques (TPD), Raman and UV–vis spectroscopy. With the adsorption isotherms of Fe3+ ions from FeCl3 aqueous solutions, it was found that adsorption of Fe3+ ions on the anatase surface is twice more efficient compared to that one on the rutile. The XRD and Raman spectroscopy measurements confirmed the monophase structure of the Fe-doped TiO2 with a subtle change in the lattice parameters and O/Ti ratio compared to the undoped counterparts. The red shift of the UV absorption edge has been registered for the Fe-doped anatase resulting in a significant decrease of its bandgap from 3.2 to 2.7 eV. The photocatalytic destruction of organic dye Safranin T over the prepared Fe-doped TiO2 under UV irradiation has been investigated. The influence of various energetically nonequivalent active sites on the surfaces of anatase and rutile on their photoactivity is considered.

AB - The effect of surface Fe-doping on the structural, photocatalytic, optical properties of polydisperse anatase and rutile TiO2 has been comprehensively studied. The TiO2 surface has been modified by Fe3+ ions through the adsorption from the diluted FeCl3 aqueous solutions. The prepared powders were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area analysis, temperature programmed desorption techniques (TPD), Raman and UV–vis spectroscopy. With the adsorption isotherms of Fe3+ ions from FeCl3 aqueous solutions, it was found that adsorption of Fe3+ ions on the anatase surface is twice more efficient compared to that one on the rutile. The XRD and Raman spectroscopy measurements confirmed the monophase structure of the Fe-doped TiO2 with a subtle change in the lattice parameters and O/Ti ratio compared to the undoped counterparts. The red shift of the UV absorption edge has been registered for the Fe-doped anatase resulting in a significant decrease of its bandgap from 3.2 to 2.7 eV. The photocatalytic destruction of organic dye Safranin T over the prepared Fe-doped TiO2 under UV irradiation has been investigated. The influence of various energetically nonequivalent active sites on the surfaces of anatase and rutile on their photoactivity is considered.

KW - Acid sites

KW - Anatase

KW - Fe doped

KW - Photocatalysis

KW - Rutile

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U2 - 10.1016/j.jpcs.2021.110308

DO - 10.1016/j.jpcs.2021.110308

M3 - Article

AN - SCOPUS:85112799591

SN - 0022-3697

VL - 160

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

M1 - 110308

ER -