Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • S.-T. Xiao
  • S.-M. Wu
  • Y. Dong
  • J.-W. Liu
  • L.-Y. Wang
  • L. Wu
  • Y.-X. Zhang
  • G. Tian
  • C. Janiak
  • M. Shalom
  • Y.-T. Wang
  • Y.-Z. Li
  • R.-K. Jia
  • D.W. Bahnemann
  • X.-Y. Yang

Organisationseinheiten

Externe Organisationen

  • Wuhan University of Technology
  • Sun Yat-Sen University
  • Chinese Academy of Sciences (CAS)
  • Hubei University
  • Harvard University
  • Heinrich-Heine-Universität Düsseldorf
  • Ben-Gurion University of the Negev (BGU)
  • Northeast Electric Power University (NEEPU)
  • Staatliche Universität Sankt Petersburg
  • Qingdao University
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer125909
FachzeitschriftChemical engineering journal
Jahrgang400
Frühes Online-Datum17 Juni 2020
PublikationsstatusVeröffentlicht - 15 Nov. 2020

Abstract

The surface hydroxyl groups in TiO 2 are crucial to many of its practical applications, but their controlled synthesis represents still a challenge. Herein, nanostructured TiO 2 with rich surface hydroxyl species groups and high crystallinity (TiO 2-OH) by high-temperature calcination have been developed by using the ionic liquid. Experimental measurements and theoretical calculations show a strong surface hydroxyl signal of two-dimensional 1H TQ-SQ MAS NMR, as well as clear changes of the charge density of TiO 2 with the rich surface hydroxyl species. Moreover, the rich surface hydroxyl species groups in TiO 2 not only significantly enhance its performances involving photogenerated current, photocatalysis and energy strorage but also show a bright future on marine applications because of its high activity and stability in simulation seawater. The characteristics and mechanism have been proposed to clarify the generation of surface hydroxyl species of TiO 2 and the correponding directed hole-trapping at an atomic-/nanoscale.

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Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect. / Xiao, S.-T.; Wu, S.-M.; Dong, Y. et al.
in: Chemical engineering journal, Jahrgang 400, 125909, 15.11.2020.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Xiao, S-T, Wu, S-M, Dong, Y, Liu, J-W, Wang, L-Y, Wu, L, Zhang, Y-X, Tian, G, Janiak, C, Shalom, M, Wang, Y-T, Li, Y-Z, Jia, R-K, Bahnemann, DW & Yang, X-Y 2020, 'Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect', Chemical engineering journal, Jg. 400, 125909. https://doi.org/10.1016/j.cej.2020.125909
Xiao, S.-T., Wu, S.-M., Dong, Y., Liu, J.-W., Wang, L.-Y., Wu, L., Zhang, Y.-X., Tian, G., Janiak, C., Shalom, M., Wang, Y.-T., Li, Y.-Z., Jia, R.-K., Bahnemann, D. W., & Yang, X.-Y. (2020). Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect. Chemical engineering journal, 400, Artikel 125909. https://doi.org/10.1016/j.cej.2020.125909
Xiao ST, Wu SM, Dong Y, Liu JW, Wang LY, Wu L et al. Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect. Chemical engineering journal. 2020 Nov 15;400:125909. Epub 2020 Jun 17. doi: 10.1016/j.cej.2020.125909
Xiao, S.-T. ; Wu, S.-M. ; Dong, Y. et al. / Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect. in: Chemical engineering journal. 2020 ; Jahrgang 400.
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title = "Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect",
abstract = "The surface hydroxyl groups in TiO 2 are crucial to many of its practical applications, but their controlled synthesis represents still a challenge. Herein, nanostructured TiO 2 with rich surface hydroxyl species groups and high crystallinity (TiO 2-OH) by high-temperature calcination have been developed by using the ionic liquid. Experimental measurements and theoretical calculations show a strong surface hydroxyl signal of two-dimensional 1H TQ-SQ MAS NMR, as well as clear changes of the charge density of TiO 2 with the rich surface hydroxyl species. Moreover, the rich surface hydroxyl species groups in TiO 2 not only significantly enhance its performances involving photogenerated current, photocatalysis and energy strorage but also show a bright future on marine applications because of its high activity and stability in simulation seawater. The characteristics and mechanism have been proposed to clarify the generation of surface hydroxyl species of TiO 2 and the correponding directed hole-trapping at an atomic-/nanoscale. ",
keywords = "Directed catalysis, Hierarchical structure, Hydrogen production from seawater, Surface hydroxyl, Titanium oxide",
author = "S.-T. Xiao and S.-M. Wu and Y. Dong and J.-W. Liu and L.-Y. Wang and L. Wu and Y.-X. Zhang and G. Tian and C. Janiak and M. Shalom and Y.-T. Wang and Y.-Z. Li and R.-K. Jia and D.W. Bahnemann and X.-Y. Yang",
note = "Funding information: This work was supported by a joint DFG-NSFC project (DFG JA466/39-1, NSFC grant 51861135313), National Key R&D Program of China ( 2017YFC1103800 ), Jilin Province Science and Technology Development Plan ( 20180101208JC ), NSFC ( U1662134 , 21711530705 ), HPNSF ( 2016CFA033 ) FRFCU ( 19lgzd16 ) and ISTCP ( 2015DFE52870 ).",
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Download

TY - JOUR

T1 - Rich surface hydroxyl design for nanostructured TiO2 and its hole-trapping effect

AU - Xiao, S.-T.

AU - Wu, S.-M.

AU - Dong, Y.

AU - Liu, J.-W.

AU - Wang, L.-Y.

AU - Wu, L.

AU - Zhang, Y.-X.

AU - Tian, G.

AU - Janiak, C.

AU - Shalom, M.

AU - Wang, Y.-T.

AU - Li, Y.-Z.

AU - Jia, R.-K.

AU - Bahnemann, D.W.

AU - Yang, X.-Y.

N1 - Funding information: This work was supported by a joint DFG-NSFC project (DFG JA466/39-1, NSFC grant 51861135313), National Key R&D Program of China ( 2017YFC1103800 ), Jilin Province Science and Technology Development Plan ( 20180101208JC ), NSFC ( U1662134 , 21711530705 ), HPNSF ( 2016CFA033 ) FRFCU ( 19lgzd16 ) and ISTCP ( 2015DFE52870 ).

PY - 2020/11/15

Y1 - 2020/11/15

N2 - The surface hydroxyl groups in TiO 2 are crucial to many of its practical applications, but their controlled synthesis represents still a challenge. Herein, nanostructured TiO 2 with rich surface hydroxyl species groups and high crystallinity (TiO 2-OH) by high-temperature calcination have been developed by using the ionic liquid. Experimental measurements and theoretical calculations show a strong surface hydroxyl signal of two-dimensional 1H TQ-SQ MAS NMR, as well as clear changes of the charge density of TiO 2 with the rich surface hydroxyl species. Moreover, the rich surface hydroxyl species groups in TiO 2 not only significantly enhance its performances involving photogenerated current, photocatalysis and energy strorage but also show a bright future on marine applications because of its high activity and stability in simulation seawater. The characteristics and mechanism have been proposed to clarify the generation of surface hydroxyl species of TiO 2 and the correponding directed hole-trapping at an atomic-/nanoscale.

AB - The surface hydroxyl groups in TiO 2 are crucial to many of its practical applications, but their controlled synthesis represents still a challenge. Herein, nanostructured TiO 2 with rich surface hydroxyl species groups and high crystallinity (TiO 2-OH) by high-temperature calcination have been developed by using the ionic liquid. Experimental measurements and theoretical calculations show a strong surface hydroxyl signal of two-dimensional 1H TQ-SQ MAS NMR, as well as clear changes of the charge density of TiO 2 with the rich surface hydroxyl species. Moreover, the rich surface hydroxyl species groups in TiO 2 not only significantly enhance its performances involving photogenerated current, photocatalysis and energy strorage but also show a bright future on marine applications because of its high activity and stability in simulation seawater. The characteristics and mechanism have been proposed to clarify the generation of surface hydroxyl species of TiO 2 and the correponding directed hole-trapping at an atomic-/nanoscale.

KW - Directed catalysis

KW - Hierarchical structure

KW - Hydrogen production from seawater

KW - Surface hydroxyl

KW - Titanium oxide

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M3 - Article

VL - 400

JO - Chemical engineering journal

JF - Chemical engineering journal

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