Multi-channel reaction device for fast appraisement of hydrogen manufacturing performance of photocatalyst

Abstract

A multi-way reaction device for rapid appraisement of photo-catalysis hydrogen production activity is composed of a light source system, a reaction system, a stirring system, a sealing system, a cooling system, a sampling system and a detection system. The multi-way reaction device includes a light reactor, a tubular light source which is driven by a decelerating motor to rotate at an uniform speed is arranged in the center of the light reactor, the light source is arranged in a quartz jacket, and cooling water or a sodium nitrite solution is introduced into the quartz jacket for cooling the light source; a plurality of quartz reaction tubes are uniformly distributed around the light source, the opening part of each quartz reaction tube is in closed connection with the light reactor, a magnetic stirrer is arranged at the lower part for driving rotary at the uniform speed, all volumes of the quartz reaction tubes are the same, and the quartz reaction tubes are connected with a gas chromatography through arranging vacuum pumps and sampling pipelines. The multi-way reaction device can carry out a plurality of groups of photo-catalysis hydrogen production reactions at the same time, and rapidly screen different photolysis hydrogen production catalysts; in addition, when different detectors are selected, the multi-way reaction device can perform rapid multi-way appraisement of various photo-catalytic reactions.

Description

technical field [0001] The invention relates to a multi-channel reaction device for rapid evaluation of the hydrogen production performance of a photocatalyst. Background technique [0002] In the field of photocatalysis, such as photocatalytic degradation of organic matter, photocatalytic water splitting to produce hydrogen, etc., on the one hand, it involves the screening of various photocatalysts, hoping to find catalysts with higher activity; Catalysts carry out various quantitative scientific research, hoping to find the optimal conditions of the catalyst or discover its inherent scientific laws. Traditionally, screening of multiple catalysts or quantitative scientific research on a certain catalyst is carried out in a reactor. Although the traditional photocatalytic reactor is effective, there are still the following problems: [0003] 1. Low efficiency: Since one reactor can only evaluate the activity of one catalyst in one reaction system, it will be a time-consumi...

AI Technical Summary

Problems solved by technology

[0003] 1. Low efficiency: Since one reactor can only evaluate the activity of one catalyst in one reaction system, it will be a time-consuming task to evaluate the activity of multiple catalysts or a catalyst in different reaction systems

[0004] 2. Low reproducibility: especially when the activity of a certain catalyst changes slightly due to changes in reaction conditions, disturbance factors such as temperature, stirring speed, and light caused by multiple operations cannot be ignored

The forward and reverse rotation of the light source of the device is likely to cause errors, and the detection of hydrogen is not very accurate in terms of quantification, and it is powerless to detect gases other than hydrogen, such as oxygen and nitrogen.

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