Volume 2, 2023

Light-driven room temperature methane gas sensor based on Ag modified flower-like ZnO microsphere

Abstract

In this work, light-driven technology is explored to study high-performance CH4 sensing materials, which could work at room temperature. Pure ZnO was prepared with a solvothermal method and noble metal silver was impregnated onto it to obtain Ag–ZnO composites. The morphology, microstructure, chemical valence, and surface and optical properties of the composites were investigated. The results confirmed that pristine ZnO microspheres and Ag/ZnO microspheres with various silver concentrations were synthesized. Moreover, compared with pristine ZnO, the Ag/ZnO composites exhibit obvious visible light absorption properties and lower PL emission intensity. The sensing results showed that the 1.5 at% Ag/ZnO composite exhibited a superior response of 3.43, which is about a 206% improvement compared with pristine ZnO. The enhanced gas sensing mechanisms were discussed. This work serves as a contribution to developing room-temperature methane sensors.

Graphical abstract: Light-driven room temperature methane gas sensor based on Ag modified flower-like ZnO microsphere

Article information

Article type
Paper
Submitted
26 Mar 2023
Accepted
29 May 2023
First published
01 Jun 2023
This article is Open Access
Creative Commons BY-NC license

Sens. Diagn., 2023,2, 878-886

Light-driven room temperature methane gas sensor based on Ag modified flower-like ZnO microsphere

M. Li, X. Sun, Y. Wang, C. Qin, J. Cao and Y. Wang, Sens. Diagn., 2023, 2, 878 DOI: 10.1039/D3SD00068K

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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