Publication detail

Flow-through Gas Phase Photocatalysis Using TiO2 Nanotubes on Wirelessly Anodized 3D-Printed TiNb Meshes

SOPHA, H. KASHIMBETOVA, A. BAUDYS, M. CHENNAM, P. SEPÚLVEDA SEPÚLVEDA, L. RUSEK, J. KOLÍBALOVÁ, E. ČELKO, L. KRÝSA, J. MACÁK, J.

Original Title

Flow-through Gas Phase Photocatalysis Using TiO2 Nanotubes on Wirelessly Anodized 3D-Printed TiNb Meshes

Type

journal article in Web of Science

Language

English

Original Abstract

In this work, for the first time 3D Ti-Nb meshes of differentcomposition,i.e., Ti, Ti-1Nb, Ti-5Nb, and Ti-10 Nb, were produced by direct inkwriting. This additive manufacturing method allows tuning of the meshcomposition by simple blending of pure Ti and Nb powders. The 3D meshesare extremely robust with a high compressive strength, giving potentialuse in photocatalytic flow-through systems. After successful wirelessanodization of the 3D meshes toward Nb-doped TiO2 nanotube(TNT) layers using bipolar electrochemistry, they were employed forthe first time for photocatalytic degradation of acetaldehyde in aflow-through reactor built based on ISO standards. Nb-doped TNT layerswith low concentrations of Nb show superior photocatalytic performancecompared with nondoped TNT layers due to the lower amount of recombinationsurface centers. High concentrations of Nb lead to an increased numberof recombination centers within the TNT layers and reduce the photocatalyticdegradation rates.

Keywords

Nb-doped TiO2 nanotube layers; bipolar electrochemistry; TiNb mesh; 3D printing; direct ink writing; photocatalysis

Authors

SOPHA, H.; KASHIMBETOVA, A.; BAUDYS, M.; CHENNAM, P.; SEPÚLVEDA SEPÚLVEDA, L.; RUSEK, J.; KOLÍBALOVÁ, E.; ČELKO, L.; KRÝSA, J.; MACÁK, J.

Released

12. 7. 2023

Publisher

American Chemical Society

Location

WASHINGTON

ISBN

1530-6992

Periodical

Nano Letters

Year of study

23

Number

14

State

United States of America

Pages from

6406

Pages to

6413

Pages count

8

URL

https://pubs.acs.org/doi/10.1021/acs.nanolett.3c01149

Full text in the Digital Library

http://hdl.handle.net/11012/245004

BibTex

@article{BUT184674,
  author="Hanna Ingrid {Sopha} and Adelia {Kashimbetova} and Michal {Baudys} and Pavan Kumar {Chennam} and Lina Marcela {Sepúlveda Sepúlveda} and Jakub {Rusek} and Eva {Kolíbalová} and Ladislav {Čelko} and Edgar Benjamin {Montufar Jimenez} and Josef {Krýsa} and Jan {Macák}",
  title="Flow-through Gas Phase Photocatalysis Using TiO2 Nanotubes on Wirelessly Anodized 3D-Printed TiNb Meshes",
  journal="Nano Letters",
  year="2023",
  volume="23",
  number="14",
  pages="6406--6413",
  doi="10.1021/acs.nanolett.3c01149",
  issn="1530-6992",
  url="https://pubs.acs.org/doi/10.1021/acs.nanolett.3c01149"
}