Publication detail

Photocatalytic degradation of naproxen using TiO2 single nanotubes

SEPÚLVEDA SEPÚLVEDA, L. MUSIAL, J. SALDAN, I. CHENNAM, P. RODRIGUEZ PEREIRA, J. SOPHA, H. STANISZ, B. MACÁK, J.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

Herein, TiO2 single-tube (TiO2 ST-NT) powders with and without magnetite Fe3O4 nanoparticles (TiO2 ST-NT@Fe(3)O(4)NPs) are presented for the first time as excellent photocatalysts for the degradation of one of the most popular non-steroidal anti-inflammatory drugs (NSAIDs), naproxen (NPX). The TiO2 ST-NT powders were synthesized by anodization followed by etching of the double wall, bending, sonication, ultra-centrifugation, and finally annealing at 600 degrees C. A part of the obtained TiO2 ST-NT powders was decorated with Fe3O4 nanoparticles using a simple one-step decoration process. The best photocatalytic performance of TiO2 ST-NT and TiO2 ST-NT@Fe(3)O(4)NPs powders was obtained under the white light (6.2 x 10(-4) s(-1)) and the blue light (2.7 x 10(-4) s(-1)), respectively. During NPX photodegradation using TiO2 ST-NT powders, three main NPX transformation products (P1, P2, and P3) were detected. Upon excitation with the blue light illumination, TiO2 ST-NT@ Fe(3)O(4)NPs powders exhibited higher performance (similar to 80%) than TiO2 ST-NT powders (similar to 23%) within 1 h, resulting in an approximately three times increased photocatalytic rate constant. Moreover, under simulated sunlight conditions, TiO2 ST-NT powders demonstrated remarkable activity, achieving a 94% NPX degradation within 1 h. TiO2 ST-NT and TiO2 ST-NT@Fe(3)O(4)NPs powders represent excellent photocatalysts for NPX degradation.

Keywords

TiO2 single nanotube; Fe3O4 nanoparticles; photocatalysis; naproxen; water treatment

Authors

SEPÚLVEDA SEPÚLVEDA, L.; MUSIAL, J.; SALDAN, I.; CHENNAM, P.; RODRIGUEZ PEREIRA, J.; SOPHA, H.; STANISZ, B.; MACÁK, J.

Released

13. 3. 2024

Publisher

FRONTIERS MEDIA SA

Location

LAUSANNE

ISBN

2673-4486

Periodical

FRONTIERS IN ENVIRONMENTAL CHEMISTRY

Year of study

Number

State

Kingdom of Sweden

Pages from

Pages to

Pages count

URL

https://www.frontiersin.org/journals/environmental-chemistry/articles/10.3389/fenvc.2024.1373320/full

Full text in the Digital Library

http://hdl.handle.net/11012/250005

BibTex

@article{BUT189977,
  author="Lina Marcela {Sepúlveda Sepúlveda} and Joanna {Musial} and Ivan {Saldan} and Pavan Kumar {Chennam} and Jhonatan {Rodriguez Pereira} and Hanna Ingrid {Sopha} and Beata J. {Stanisz} and Jan {Macák}",
  title="Photocatalytic degradation of naproxen using TiO2 single nanotubes",
  journal="FRONTIERS IN ENVIRONMENTAL CHEMISTRY",
  year="2024",
  volume="5",
  number="3",
  pages="9",
  doi="10.3389/fenvc.2024.1373320",
  issn="2673-4486",
  url="https://www.frontiersin.org/journals/environmental-chemistry/articles/10.3389/fenvc.2024.1373320/full"
}