Issue 23, 2022

In situ monitoring of the plasmon catalytic reaction of p-nitroaniline at a gas–liquid–solid three phase interface

Abstract

Localized surface plasmon resonance (LSPR) is caused by the irradiation of light on a metal surface. Here we present a surface plasmon catalytic reaction at the gas–liquid–solid three phase interface. Electrochemical deposition was used to prepare Ag nanostructure/Cu mesh surface-enhanced Raman scattering (SERS) substrates. Surface wettability was adjusted by changing the processing time of the surfactant. Then a three-phase interface platform was constructed with good SERS performance and active surface plasmon catalytic capacity by droplet detection. At the gas–liquid–solid three phase interface, different oxygen supplies for the catalytic reaction were offered on surfaces with different wettability values. Thus, in this study, surface plasmon catalytic reaction of p-nitroaniline (PNA) was successfully in situ monitored and the reaction mechanism was explored. Otherwise, density functional theory (DFT) was used to calculate the Raman spectra and energy levels of the reactants and reaction products. Moreover, this work provides a new platform for monitoring the surface plasmon reaction at the gas–liquid–solid three-phase interface and contributes to the development of the study in the surface plasmon catalytic reaction field.

Graphical abstract: In situ monitoring of the plasmon catalytic reaction of p-nitroaniline at a gas–liquid–solid three phase interface

Supplementary files

Article information

Article type
Paper
Submitted
23 Mar 2022
Accepted
23 May 2022
First published
27 May 2022

Phys. Chem. Chem. Phys., 2022,24, 14545-14551

In situ monitoring of the plasmon catalytic reaction of p-nitroaniline at a gas–liquid–solid three phase interface

Z. Shi, J. Liu, H. Xi, P. Wu, N. Pan, T. You, Y. Gao and P. Yin, Phys. Chem. Chem. Phys., 2022, 24, 14545 DOI: 10.1039/D2CP01380K

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