Dimethylamine gas catalytic luminescence sensing material, sensor, preparation and application

Abstract

The invention discloses a dimethylamine gas catalytic luminescence sensing material, a sensor, and preparation and application thereof, and belongs to the field of gas catalytic luminescence sensors. The material preparation steps include dissolving zirconium oxychloride hydrate in water, adding a chelating agent and a polyhydroxy alcohol, evaporating after dissolution, calcining at a specific temperature, and then cooling naturally. The invention can quickly prepare a metastable tetragonal zirconium dioxide sensing material, with a particle size of about 10 nm, a relatively uniform particle size distribution, no agglomeration, a large specific surface area, and the ability to exist stably at room temperature, and has the potential to quickly detect dimethylamine gas. The catalytic luminescence sensor has high sensitivity, good cycle performance, and exhibits good consistency when continuously and repeatedly detecting amine VOCs. It can highly selectively determine dimethylamine gas without being interfered by other gases, has good reproducibility and stability, and can be used for long-term monitoring of dimethylamine gas, with fast response speed, high accuracy, and long service life.

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