Method for detecting organic volatile matters by using zirconium-based sensor

A technology of organic volatiles and sensors, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of low sensitivity of VOC, and achieve the effect of simple preparation process, simple structure and good measurement effect

Inactive Publication Date: 2016-12-07
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the zirconium-based sensors used in current detection methods are often less sensitive to VOCs, and their detection limits are mostly in the tens of ppm (ppm is one millionth)

Method used

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  • Method for detecting organic volatile matters by using zirconium-based sensor
  • Method for detecting organic volatile matters by using zirconium-based sensor
  • Method for detecting organic volatile matters by using zirconium-based sensor

Examples

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Embodiment 1

[0021] Embodiment 1: A method for detecting organic volatiles using a zirconium-based sensor, the detection device such as figure 1 As shown, the zirconium-based sensor 100 is connected with the data receiving and processing device 200, the zirconium-based sensor 100 is as figure 2 As shown, it includes a zirconium-based solid electrolyte base layer 1 and a reference electrode 2 and a sensitive electrode 3 arranged on the zirconium-based solid electrolyte base layer 1. The zirconium-based solid electrolyte base layer 1 is sintered from a 0.3mm YSZ green ceramic sheet. Electrode 2 is a porous platinum electrode. Platinum paste is printed on the surface of zirconium-based solid electrolyte base layer 1 by screen printing technology. Sensitive electrode 3 is a porous zinc oxide photosensitive electrode. After dissolving zinc oxide powder into polymer After the zinc oxide photosensitive electrode slurry is prepared in the chemical reagent, the zinc oxide photosensitive electrode ...

Embodiment 2

[0023] Embodiment two: if image 3 As shown, a zirconium-based sensor includes a zirconium-based solid electrolyte base layer 1 and a reference electrode 20 and a sensitive electrode 30 arranged on the same side of the zirconium-based solid electrolyte base layer 1. The zirconium-based solid electrolyte base layer 1 is made of 0.5mm YSZ green ceramic The reference electrode 20 is a porous platinum electrode, and the platinum paste is printed on the surface of the zirconium-based solid electrolyte base layer 1 by screen printing technology, and the sensitive electrode 30 is a porous zinc oxide photosensitive electrode. After dissolving the zinc oxide photosensitive electrode slurry into the polymer chemical reagent, the zinc oxide photosensitive electrode slurry is also printed on the surface of the zirconium-based solid electrolyte base layer 1 by screen printing technology, and the surface of the zirconium-based solid electrolyte base layer 1 A heating chip 60 is provided on ...

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Abstract

The invention discloses a for detecting organic volatile matters by using a zirconium-based sensor. The zirconium-based sensor comprises a zirconium-based solid electrolyte base layer and a reference electrode and a sensitive electrode which are arranged on the zirconium-based solid electrolyte base layer, the reference electrode is a platinum electrode, the sensitive electrode is a zinc oxide photosensitive electrode. The concrete detection method comprises the following steps: connecting the zirconium-based sensor with a data receiving and processing device, arranging an ultraviolet ray irradiation device above the zinc oxide photosensitive electrode, arranging a heating device used for heating the zirconium-based solid electrolyte base layer, heating the zirconium-based sensor to 400-450 DEG C by using the heating device, keeping the temperature, continuously irradiating ultraviolet lights with the wavelength of 365-385 nm on the sensitive electrode by using the ultraviolet ray irradiation device, and obtaining organic volatile matter detection data with a low detection limit through the data receiving and processing device. The method can obtain a good measurement effect in a gas measurement range of 0-645 ppm, and can reach the low detection limit of 0.1-2 ppm.

Description

technical field [0001] The invention relates to a method for detecting organic volatiles, in particular to a method for detecting organic volatiles using a zirconium-based sensor. Background technique [0002] With the continuous development of my country's home improvement market, various problems in home improvement have followed one after another. In particular, the harmfulness of indoor environmental pollution to the human body has attracted more and more attention. Among them, the main source of indoor environmental pollution is volatile organic compounds (VOCs) emitted from decoration paints, among which aromatic VOCs in paints such as ethylbenzene (Ethylbenzene), p-xylene (p-Xylene), m-trimethylbenzene (Mesitylene) And toluene (Toluene) is the main culprit that causes leukemia in newborn children. [0003] At present, VOC sensors based on yttrium-stabilized zirconia (Yttria Stablilzed Zirconia, referred to as YSZ or zirconium-based) electrolytes have attracted wides...

Claims

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Application Information

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IPC IPC(8): G01N27/407
CPCG01N27/4074
Inventor 金涵张鑫邹杰
Owner NINGBO UNIV
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