Publication detail

Carbon fibers decorated with TiO2 nanoparticles for photocatalytic degradation of methylene blue dye

CHENNAM, P. SEPÚLVEDA SEPÚLVEDA, L. ŘÍHOVÁ, M. ALIJANI, M. KACHLÍK, M. ZAZPE, R. PAVLIŇÁK, D. MACA, K. MACÁK, JM.

Original Title

Carbon fibers decorated with TiO2 nanoparticles for photocatalytic degradation of methylene blue dye

Type

journal article in Web of Science

Language

English

Original Abstract

This report demonstrates the development of carbon fibers (CFs) decorated with TiO2 nanoparticles (NPs) as an efficient photocatalyst for the photocatalytic degradation of methylene blue (MB) as a model dye. Carbon fibers were produced by carbonization of polyacrylonitrile fibers, previously produced by centrifugal spinning. Subsequently, the CFs were decorated with TiO2 NPs (CFs@TiO2) by tailored soaking protocol using aqueous TiCl4 solution with different concentrations (0.025, 0.05, 0.1, and 0.2 M). SEM analyses revealed that soaking in TiCl4 produced a smooth, conformal, continuous TiO2 nanoparticulate coating with thickness increasing from 40.4 +/- 21.2 to 257.9 +/- 63.9 nm with increasing TiCl4 concentration. X-ray diffraction and Raman spectroscopy confirmed the anatase nature of TiO2. Photocatalytic decomposition rates of MB were assessed under UV light illumination for all CFs@TiO2 samples, and it was revealed that the lowest amount of TiO2 NP on C yielded the highest rates. The synergistic interaction between CFs and TiO2 NPs with a uniform morphology and a well-crystalline anatase structure, present in an optimal amount of fiber bodies, is the key reason for the remarkable photocatalytic performance. This work shows that C fibers decorated with an optimal amount of TiO2 NPs have a great potential as an effective photocatalytic material.

Keywords

centrifugal spinning; carbon fibers; TiO2 nanoparticles; decoration; photocatalytic degradation

Authors

CHENNAM, P.; SEPÚLVEDA SEPÚLVEDA, L.; ŘÍHOVÁ, M.; ALIJANI, M.; KACHLÍK, M.; ZAZPE, R.; PAVLIŇÁK, D.; MACA, K.; MACÁK, JM.

Released

23. 10. 2024

Publisher

Frontiers Media S.A.

Location

LAUSANNE

ISBN

2673-3013

Periodical

Frontiers in Nanotechnology

Year of study

6

Number

1

State

Swiss Confederation

Pages from

1

Pages to

11

Pages count

11

URL

https://www.frontiersin.org/journals/nanotechnology/articles/10.3389/fnano.2024.1483917/full

Full text in the Digital Library

http://hdl.handle.net/11012/250795

BibTex

@article{BUT197200,
  author="Pavan Kumar {Chennam} and Lina Marcela {Sepúlveda Sepúlveda} and Martina {Říhová} and Mahnaz {Alijani} and Martin {Kachlík} and Raúl {Zazpe Mendioroz} and David {Pavliňák} and Karel {Maca} and Jan {Macák}",
  title="Carbon fibers decorated with TiO2 nanoparticles for photocatalytic degradation of methylene blue dye",
  journal="Frontiers in Nanotechnology",
  year="2024",
  volume="6",
  number="1",
  pages="11",
  doi="10.3389/fnano.2024.1483917",
  issn="2673-3013",
  url="https://www.frontiersin.org/journals/nanotechnology/articles/10.3389/fnano.2024.1483917/full"
}