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CHENNAM, P. SEPÚLVEDA SEPÚLVEDA, L. ŘÍHOVÁ, M. ALIJANI, M. KACHLÍK, M. ZAZPE, R. PAVLIŇÁK, D. MACA, K. MACÁK, JM.
Originální název
Carbon fibers decorated with TiO2 nanoparticles for photocatalytic degradation of methylene blue dye
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
centrifugal spinning; carbon fibers; TiO2 nanoparticles; decoration; photocatalytic degradation
Autoři
CHENNAM, P.; SEPÚLVEDA SEPÚLVEDA, L.; ŘÍHOVÁ, M.; ALIJANI, M.; KACHLÍK, M.; ZAZPE, R.; PAVLIŇÁK, D.; MACA, K.; MACÁK, JM.
Vydáno
23. 10. 2024
Nakladatel
Frontiers Media S.A.
Místo
LAUSANNE
ISSN
2673-3013
Periodikum
Frontiers in Nanotechnology
Ročník
6
Číslo
1
Stát
Švýcarská konfederace
Strany od
Strany do
11
Strany počet
URL
https://www.frontiersin.org/journals/nanotechnology/articles/10.3389/fnano.2024.1483917/full
Plný text v Digitální knihovně
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" }