Gas-phase photocatalysis reaction device

Abstract

The invention provides a gas-phase photocatalysis reaction device which comprises a gas-phase reaction chamber, a gas-phase comparison chamber, a light induction system, an atmosphere and pressure regulating control device, a temperature and humidity regulating control device, a gas circulating pump and a gas-phase reactant and product concentration detection device. Through integrally regulating the atmosphere and pressure regulating control device, the temperature and humidity regulating control device and corresponding control valves, the gas-phase photocatalysis reaction device is capable of enabling a photocatalysis reaction experiment to be carried out under the conditions of different temperatures and humilities, different oxygen contents and air pressures, different airflows and the like, thereby simulating and researching the photocatalysis property of a photocatalytic material under different environments. The gas-phase photocatalysis reaction device is controllable in reaction conditions, excellent in impermeability and high in testing stability, and is beneficial to objective and accurate representation of the property of the photocatalytic material, thereby promoting the application of the photocatalytic material.

Description

Technical field: [0001] The invention belongs to a characterization method and device for material properties, in particular to a gas-phase photocatalytic reaction device for a characterization device for degrading gas-phase pollutant performance of photocatalytic materials. Background technique: [0002] Photocatalytic environmental purification materials, especially semiconductor photocatalytic materials such as titanium dioxide, can convert light energy into chemical energy, and have great application prospects in the fields of air purification, sewage treatment, antibacterial deodorization, anti-fog and self-cleaning. However, since the performance of photocatalytic materials is affected by various environmental factors such as air pressure, oxygen content, temperature, humidity, and airflow, it is difficult to evaluate accurately under constant conditions. Therefore, it is necessary to characterize the performance of photocatalytic materials under the above-mentioned ...

AI Technical Summary

Problems solved by technology

Some existing related detection devices are difficult to accurately control environmental factors such as temperature, humidity, air pressure, oxygen content, and air flow during the test process. At the same time, there are also problems such as long test periods, easy leakage, and negative pressure sampling. It is difficult to obtain environmental factors. Influence law of photocatalytic material performance and rapid and accurate evaluation of photocatalytic material performance

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