CER - Central Repository
Institute of Chemistry, Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   CER
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
  •   CER
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Effect of Tb3+ doping on the photocatalytic activity of TiO2 coatings formed by plasma electrolytic oxidation of titanium

Authorized Users Only
2018
Authors
Stojadinović, Stevan
Tadić, Nenad
Radić, Nenad
Grbić, Boško
Vasilić, Rastko
Article (Published version)
Metadata
Show full item record
Abstract
Tb doped TiO2 coatings are formed by plasma electrolytic oxidation (PEO) of titanium in water solution of 10 g/L Na3PO4.12H(2)O with addition of Tb4O7 powder. Surface morphology, chemical, and phase composition of obtained PEO coatings are investigated utilizing scanning electron microscopy equipped with energy dispersive x-ray spectroscopy and X-ray diffraction. Uniformly distributed Ti, O, P, and Tb are identified as the main constituents of the coatings. Diffraction patterns of obtained coatings show well pronounced reflections inherent to anatase phase of TiO2. Performed photoluminescence measurements indicate that incorporated Tb is in trivalent oxidation state. Photoluminescence emission spectra feature two overlapping regions: the first region is related to band of TiO2 host and the second region which features several emission bands is ascribed to f-f transitions of Tb3+ from excited level D-5(4) to lower levels F-7(J) (J = 3,4,5, and 6). The photocatalytic activity (PA) of Tb3...+ doped TiO2 coatings is probed by measuring the photodegradation of methyl orange under simulated sunlight conditions, suggesting that the main factor affecting PA is concentration of Tb3+ ions incorporated into coatings. Tb3+ doped TiO2 coatings formed for short time have better PA than pure TiO2 coatings formed under the same conditions; the highest PA is observed for the coating formed after 1 min of PEO process. Presence of Tb3+ ions into TiO2 coatings in small concentration improves PA through effective suppression of electron/hole recombination.

Keywords:
Photocatalysis / Plasma electrolytic oxidation / TiO2 / Tb3+ / Photoluminescence
Source:
Surface and Coatings Technology, 2018, 337, 279-289
Publisher:
  • Elsevier
Funding / projects:
  • Graphitic and Inorganic Low-dimensional Nanostructures (RS-171035)
  • The development of efficient chemical-engineering processes based on the transport phenomena research and process intensification principles (RS-172022)

DOI: 10.1016/j.surfcoat.2018.01.033

ISSN: 0257-8972

WoS: 000430643900032

Scopus: 2-s2.0-85041398894
[ Google Scholar ]
23
20
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2292
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Tadić, Nenad
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Vasilić, Rastko
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2292
AB  - Tb doped TiO2 coatings are formed by plasma electrolytic oxidation (PEO) of titanium in water solution of 10 g/L Na3PO4.12H(2)O with addition of Tb4O7 powder. Surface morphology, chemical, and phase composition of obtained PEO coatings are investigated utilizing scanning electron microscopy equipped with energy dispersive x-ray spectroscopy and X-ray diffraction. Uniformly distributed Ti, O, P, and Tb are identified as the main constituents of the coatings. Diffraction patterns of obtained coatings show well pronounced reflections inherent to anatase phase of TiO2. Performed photoluminescence measurements indicate that incorporated Tb is in trivalent oxidation state. Photoluminescence emission spectra feature two overlapping regions: the first region is related to band of TiO2 host and the second region which features several emission bands is ascribed to f-f transitions of Tb3+ from excited level D-5(4) to lower levels F-7(J) (J = 3,4,5, and 6). The photocatalytic activity (PA) of Tb3+ doped TiO2 coatings is probed by measuring the photodegradation of methyl orange under simulated sunlight conditions, suggesting that the main factor affecting PA is concentration of Tb3+ ions incorporated into coatings. Tb3+ doped TiO2 coatings formed for short time have better PA than pure TiO2 coatings formed under the same conditions; the highest PA is observed for the coating formed after 1 min of PEO process. Presence of Tb3+ ions into TiO2 coatings in small concentration improves PA through effective suppression of electron/hole recombination.
PB  - Elsevier
T2  - Surface and Coatings Technology
T1  - Effect of Tb3+ doping on the photocatalytic activity of TiO2 coatings formed by plasma electrolytic oxidation of titanium
VL  - 337
SP  - 279
EP  - 289
DO  - 10.1016/j.surfcoat.2018.01.033
ER  - 
@article{
author = "Stojadinović, Stevan and Tadić, Nenad and Radić, Nenad and Grbić, Boško and Vasilić, Rastko",
year = "2018",
abstract = "Tb doped TiO2 coatings are formed by plasma electrolytic oxidation (PEO) of titanium in water solution of 10 g/L Na3PO4.12H(2)O with addition of Tb4O7 powder. Surface morphology, chemical, and phase composition of obtained PEO coatings are investigated utilizing scanning electron microscopy equipped with energy dispersive x-ray spectroscopy and X-ray diffraction. Uniformly distributed Ti, O, P, and Tb are identified as the main constituents of the coatings. Diffraction patterns of obtained coatings show well pronounced reflections inherent to anatase phase of TiO2. Performed photoluminescence measurements indicate that incorporated Tb is in trivalent oxidation state. Photoluminescence emission spectra feature two overlapping regions: the first region is related to band of TiO2 host and the second region which features several emission bands is ascribed to f-f transitions of Tb3+ from excited level D-5(4) to lower levels F-7(J) (J = 3,4,5, and 6). The photocatalytic activity (PA) of Tb3+ doped TiO2 coatings is probed by measuring the photodegradation of methyl orange under simulated sunlight conditions, suggesting that the main factor affecting PA is concentration of Tb3+ ions incorporated into coatings. Tb3+ doped TiO2 coatings formed for short time have better PA than pure TiO2 coatings formed under the same conditions; the highest PA is observed for the coating formed after 1 min of PEO process. Presence of Tb3+ ions into TiO2 coatings in small concentration improves PA through effective suppression of electron/hole recombination.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "Effect of Tb3+ doping on the photocatalytic activity of TiO2 coatings formed by plasma electrolytic oxidation of titanium",
volume = "337",
pages = "279-289",
doi = "10.1016/j.surfcoat.2018.01.033"
}
Stojadinović, S., Tadić, N., Radić, N., Grbić, B.,& Vasilić, R.. (2018). Effect of Tb3+ doping on the photocatalytic activity of TiO2 coatings formed by plasma electrolytic oxidation of titanium. in Surface and Coatings Technology
Elsevier., 337, 279-289.
https://doi.org/10.1016/j.surfcoat.2018.01.033
Stojadinović S, Tadić N, Radić N, Grbić B, Vasilić R. Effect of Tb3+ doping on the photocatalytic activity of TiO2 coatings formed by plasma electrolytic oxidation of titanium. in Surface and Coatings Technology. 2018;337:279-289.
doi:10.1016/j.surfcoat.2018.01.033 .
Stojadinović, Stevan, Tadić, Nenad, Radić, Nenad, Grbić, Boško, Vasilić, Rastko, "Effect of Tb3+ doping on the photocatalytic activity of TiO2 coatings formed by plasma electrolytic oxidation of titanium" in Surface and Coatings Technology, 337 (2018):279-289,
https://doi.org/10.1016/j.surfcoat.2018.01.033 . .

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

re3dataOpenAIRERCUB
 

 

All of DSpaceInstitutions/communitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

re3dataOpenAIRERCUB