Publication detail

Influence of Particle Size on Electrophotocatalytic Properties of Tungsten Trioxide Photoanodes

CHITTOORY, V. SAŇÁK, T. VESELÝ, M. BARTOŠ, R. KRÁLOVÁ, M. DZIK, P.

Original Title

Influence of Particle Size on Electrophotocatalytic Properties of Tungsten Trioxide Photoanodes

Type

journal article in Web of Science

Language

English

Original Abstract

The need for advanced wastewater treatment technologies has been highlighted by the widespread contamination of water sources with toxic and persistent organic chemicals. In this work, thin films of tungsten (VI) oxide (WO3) were prepared by spin-coating and Meyer rod coating nanoparticulate dispersions following a top-down approach through ball milling. The morphological properties of the layers were investigated by profilometry. The results showed that the surface area increased with an increase in milling time for the milled mixture, and, for the sample milled for 96 h, it showed a nine-fold increase compared to the commercial tungsten (VI) oxide powder. The electron microscopic images provided insight into the change in particle size and layer texture which comply with the morphological changes observed by profilometry. The influence of the particle size on the charge generation efficiency was investigated using photoanodes prepared from the studied suspensions. Two distinct formulations of different particle sizes were mixed in variable ratios, and we showed that multimodal coatings exhibit larger photocurrents than monomodal coatings. The main contribution of this work can be found in the economically inexpensive method of preparing thin films WO3.

Keywords

tungsten (VI) oxideball millingmorphologytop-downelectrophotocatalysis, ADVANCED OXIDATION PROCESSESWATER-TREATMENTWO3BALLNANOPARTICLESDEGRADATION

Authors

CHITTOORY, V.; SAŇÁK, T.; VESELÝ, M.; BARTOŠ, R.; KRÁLOVÁ, M.; DZIK, P.

Released

1. 8. 2024

Publisher

JOURNAL OF THE ELECTROCHEMICAL SOCIETY

Location

USA

ISBN

0013-4651

Periodical

JOURNAL OF THE ELECTROCHEMICAL SOCIETY

Year of study

171

Number

8

State

United States of America

Pages count

10

URL

https://www.researchgate.net/publication/382840581_Influence_of_Particle_Size_on_Electrophotocatalytic_Properties_of_Tungsten_Trioxide_Photoanodes#full-text

BibTex

@article{BUT189686,
  author="Valli Kamala Laxmi Ramya {Chittoory} and Tomáš {Saňák} and Michal {Veselý} and Radim {Bartoš} and Marcela {Králová} and Petr {Dzik}",
  title="Influence of Particle Size on Electrophotocatalytic Properties of Tungsten Trioxide Photoanodes",
  journal="JOURNAL OF THE ELECTROCHEMICAL SOCIETY",
  year="2024",
  volume="171",
  number="8",
  pages="10",
  doi="10.1149/1945-7111/ad6a8e",
  issn="0013-4651",
  url="https://www.researchgate.net/publication/382840581_Influence_of_Particle_Size_on_Electrophotocatalytic_Properties_of_Tungsten_Trioxide_Photoanodes#full-text"
}