Issue 47, 2021

In situ SERS monitoring of photocatalysts by Au-decorated Fe3O4@TiO2 nanocomposites: novel perspectives and insights

Abstract

The design and preparation of multifunctional nanomaterials are very important for photocatalytic research. Herein, we successfully fabricated Au-decorated Fe3O4@TiO2 nanoparticles (NPs) that can be easily separated from solution using an external magnet. The synthesized Fe3O4@TiO2–Au NPs exhibit excellent photocatalytic and surface-enhanced Raman scattering (SERS) activities upon 532 nm laser excitation. The photolysis of methyl orange (MO) by the Fe3O4@TiO2–Au NPs was successfully monitored by in situ SERS. The Fe3O4@TiO2–Au NPs exhibit more efficient catalysis than the Fe3O4@TiO2 NPs. Most importantly, Au-decorated TiO2 exhibits surface plasmon resonance (SPR), which induces hot electron transfer for photocatalytic and SERS activities. Therefore, the proposed Fe3O4@TiO2–Au NPs can be widely used in environmental monitoring and pollutant degradation using an in situ SERS monitoring technique.

Graphical abstract: In situ SERS monitoring of photocatalysts by Au-decorated Fe3O4@TiO2 nanocomposites: novel perspectives and insights

Supplementary files

Article information

Article type
Paper
Submitted
03 صفر 1443
Accepted
21 ربيع الأول 1443
First published
27 ربيع الأول 1443

CrystEngComm, 2021,23, 8443-8450

In situ SERS monitoring of photocatalysts by Au-decorated Fe3O4@TiO2 nanocomposites: novel perspectives and insights

S. Jin, E. Park, S. Guo, Y. Park, L. Chen and Y. M. Jung, CrystEngComm, 2021, 23, 8443 DOI: 10.1039/D1CE01224J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements