Issue 47, 2022, Issue in Progress

A UiO-66 3D photonic crystal optical sensor for highly efficient chlorobenzene vapor detection

Abstract

Chlorobenzene (C6H5Cl) is a flammable liquid with high vapor activity, which is a severe threat to the environment and human health. Therefore, it is essential to develop a highly efficient sensor to detect C6H5Cl vapor. Herein, we developed a UiO-66 three-dimensional photonic crystal (3D PC) optical sensor and investigated its sensing properties toward the C6H5Cl vapor. The UiO-66 3D PCs optical sensor shows a high sensitivity of C6H5Cl vapor, in the concentrations range of 0–500 ppm, the reflectance intensity response to be 0.06% ppm with a good linear relationship, detection limit can reach 1.64 ppm and the quality factor is 10.8. Additionally, the UiO-66 3D PC optical sensor demonstrated great selectivity with the values of selectivity (S) varying from 2.24 to 10.65 for the C6H5Cl vapor as compared with carbon tetrachloride (CCl4), dichloromethane (CH2Cl2), 1,1,2-trichloroethane (C2H3Cl3), benzene (C6H6), deionized water (H2O), ethanol (C2H5OH) and methyl alcohol (CH3OH) vapors. Moreover, the UiO-66 3D PC optical sensor shows an ultrafast optical response time and recovery times of 0.5 s and 0.45 s with exceptional stability and repeatability to 500 ppm C6H5Cl vapor. These excellent sensing properties are attributed to the efficacy of signal transduction, increased porosity and gas adsorption sites, which are intrinsically endowed by the design of the 3D optical structure. The design and fabrication of this UiO-66 3D PC optical sensor might open up potential applications for the detection of the C6H5Cl vapor.

Graphical abstract: A UiO-66 3D photonic crystal optical sensor for highly efficient chlorobenzene vapor detection

Supplementary files

Article information

Article type
Paper
Submitted
01 Sep 2022
Accepted
11 Oct 2022
First published
24 Oct 2022
This article is Open Access
Creative Commons BY license

RSC Adv., 2022,12, 30262-30269

A UiO-66 3D photonic crystal optical sensor for highly efficient chlorobenzene vapor detection

Y. Wang, Z. Wang, Y. Gao, Y. Yuan, J. Liu, J. Yan and Y. Chen, RSC Adv., 2022, 12, 30262 DOI: 10.1039/D2RA05494A

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