Issue 36, 2021

A novel sensitive ACNTs–MoO2 SERS substrate boosted by synergistic enhancement effect

Abstract

Integrating chemical enhancement (CM) and electromagnetic enhancement (EM) into one substrate is of great significance, but as far as we know, little research has been done on this project. In this paper, the novel bead chain like acidified carbon nanotubes–MoO2 (ACNTs–M) were designed by a simple two-step hydrothermal synthesis method. Benefitting from a good adsorption capacity, chemical enhancement and surface electromagnetic field enhancement effect, ACNTs–M exhibits a stunning SERS performance. The maximum enhancement factor (EF) of 5.13 × 107 is obtained with R6G molecules on ACNTs–M. The limit of detection (LOD) of R6G is 10−10 M. In addition, ACNTs–M also exhibits SERS sensitivity of other organic dyes (CV, RhB and MB). The results of Raman signal enhancement mechanism research verified that the synergy of CM and EM is the reason for the high SERS sensitivity of ACNTs–M. We believe that our work may bring cutting edge of development of stable and highly sensitive nonmetal SERS substrates.

Graphical abstract: A novel sensitive ACNTs–MoO2 SERS substrate boosted by synergistic enhancement effect

Supplementary files

Article information

Article type
Paper
Submitted
13 Jul 2021
Accepted
23 Aug 2021
First published
24 Aug 2021

Phys. Chem. Chem. Phys., 2021,23, 20645-20653

A novel sensitive ACNTs–MoO2 SERS substrate boosted by synergistic enhancement effect

X. Zhou, X. Zhao, S. Gu, K. Gao, F. Xie, X. Wang and Z. Tang, Phys. Chem. Chem. Phys., 2021, 23, 20645 DOI: 10.1039/D1CP03174K

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