Development of a plasma-assisted cataluminescence system for benzene, toluene, ethylbenzene, and xylenes analysis
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Updated: Jun 13, 2026

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination
Published on: August 18, 2020
Mohammad Reza Almasian1, Na Na, Fang Wen
1Department of Chemistry, Key Laboratory for Atomic and Molecular Nanosciences of the Education Ministry, Tsinghua University, Beijing 100084, PR China.
Abstract:
A novel method has been proposed to enhance efficiency of cataluminescence reaction by applying a plasma-assisted cataluminescence (PA-CTL) system. The obtained results clearly indicated that the PA-CTL system exhibited substantially higher sensitivity for the detection of benzene, toluene, ethylbenzene, and xylenes (BTEX) on the surface of nanosized ZrO(2). There are two distinctive advantages in the PA-CTL system; on one hand, the plasma activates the BTEX molecules for the detection, and on the other hand, the working temperature range of the catalytic reaction is lowered with the plasma assistance. A detection limit (LOD = 3sigma) of 20 ng mL(-1) was achieved for benzene in air samples. Using a graphite electrode in the designed plasma provides an additional opportunity for solid-phase microextraction (SPME) sampling of volatile organic compounds (VOCs) on its surface followed by PA-CTL detection. This ability has been investigated for detection of m-xylene in air samples.
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