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thermo-photocatalysis光热催化

2023-05-26450

In-situ Infrared Monitoring of Photothermal Effects

During the photocatalytic reaction process, a thermocatalytic reactor is inevitably present. Especially under intense light irradiation, when materials absorb incident light, a portion of it is converted into heat, causing the material to heat up and thus affecting the performance of the catalyst. As a result, some researchers are focusing on studying the photothermal effects of catalysts. To meet this demand, an online temperature measurement gas-solid phase photocatalytic reactor has been introduced.

Our in-situ temperature measurement reactor measures the surface temperature of the catalyst by detecting the infrared light emitted from the catalyst's surface.

Its advantages lie in non-contact measurement, wide temperature range, fast response speed, and high sensitivity. However, due to the influence of the emissivity of the object being measured, it is almost impossible to measure the actual temperature of the object, but rather the surface temperature.

Configuration 1: Xenon lamp light source + 6A + online temperature measurement gas-solid phase photocatalytic reactor + in-situ infrared thermometer

Configuration 2: Offline temperature measurement gas-solid phase photocatalytic reactor + in-situ infrared thermometer

 

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Advantages of the Solution

Online in-situ temperature measurement allows real-time measurement of the surface temperature of the catalyst and can also be used to monitor the reaction through gas product detection. Using 6A for online sampling, by changing the reactor, reactions including decomposition of water and CO2 reduction, including light/photo-catalysis, can be achieved.

Optimized gas flow-through methods for gas-solid phase reactions. For gas-solid phase reactions, the way the reaction atmosphere flows through the catalyst can be simply categorized as "passing through" or "penetrating," as shown below:

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The gas flow pattern of the online gas-solid phase reactor is "penetrating," where the catalyst is placed on the limited filter membrane, which is positioned on the catalyst platform, and the platform is placed at the position of the reactor's main porous sieve plate.

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Advantages of the Solution

Simple setup, flexible and convenient operation.